This has to be the best explanation about exhaust manifolds for the 350z. I'm considering getting these, but I'll probably wait till version 2 of these come out on September.
@@AnthonyJ350 on websites like enjuku racing there's a pre-order for date September 22, and on the Z1 website I'm not sure if it's the version 2. Plus, Z1 is prohibited to sale these to the state of California, which is where I reside.
Wow this video was well made and very thorough. This proves that you never really know what you're buying until you get them installed. I liked how you found the fine details with these comparisons. The spot welds and measurements, design flaws, price points and build qualities. This information is priceless. It's always good practice to inspect aftermarket products. Very impressed with this video. Great job man!
Dude this is what I needed for real! Great video! I am going to get the Tomei headers for my 2009 370Z and this has validated my choice that much more!
Another well sorted video, great info on the budget headers as well. People don't usually think things out before buying, I'm shocked that Z1 actually raised the prices on their own headers when they were the same price as Tomei back when I purchased. I don't see how anyone could justify paying more for the Z1 when it's not a complete kit and about the same quality as the Tomei.
I've called z1 a few times to see if I could purchase replacement bolts and brackets separately if needed. I was surprised that they could not help. I was trying to replace the ball bracket for the trunk struts on the Zed rather than ordering the full set. But in this case they don't include the full set with their price
@@BoOmBaMan unfortunately they aren't very useful. It's hit or miss from what I've heard/experienced, shame cause it seems like they are passionate about these cars but I guess some employees don't share the same enthusiasm. I've spent a lot of money with them I've had so many customer service issues with them, because of this I only buy products with their name on it. It seems they care more about those, in the end they make sure I'm taken care of if I have any problems but they have treated my like I'm wrong or I'm the problem many times.
Anthony ,excellent explanation on those headers. Nice touch finding an expert explaining the differences. Yes refinement and quality do cost more money. It all depends on your budget and what results you are expecting. You see soooo many aftermarket kits on Ebay that are cheap and perform poorly. Let the Buyer BEWARE. Still I'm curious on Dyno Graphs on the 3 different headers on a same car, Or 1/4 mile times. It may be hard to swallow spending $2000+ on an exhaust system to get a 5 hp gain or reduce your 1/4 mile times by 0.2 seconds.
@@hakimrahman85 Totally can be, we discussed that point in the video. I would definitely get them coated as well with Cerakote. A DE engine would definitely see gains with a stock HR header.
I had my own headers custom made. Incorporated the test pipes into them so they run all the way down to the y pipe and I added small vibrant resonators with flex pipes at the connection. Made 28whp with the custom exhaust headers combo
@@AnthonyJ350 I actually made 28whp and 30wtq. That was the first mod as well as custom 2.25” to 2.5” true dual with x pipe with longer vibrant resonators in the middle. 5” exhaust tips. I ended up with 03 G35 coupe 6mt FBO de with motordyne plenum spacer, complete port and polished intake manifold from top to bottom. Gasket matched and heat reduced with copper gaskets, upgraded 550cc injectors, 255 walbro pump, bigger 80mm tb from vq45 m45, manifold matched neck by porting, custom Jim wolf ztube with 6” stillen velocity stack ported to 7” with 10” KN dry filter custom heat shield, GTR coil packs, NGK stage 2 colder plugs, uprev tune with arc features. Put down 312whp and 293wheel torque, 3.9 370 nismo gears, 1 pc aluminum drive shaft, complete poly engine trans and diff mounts, lighter alternator pulley, l off hater crankshaft pulley, power steering delete, smaller belt, upper fan tensioner delete. Made my own oil catch can with stainless lines, meth spray into intake from windshield reservoir. Colder Intake temps. Chirps from 1st to 2nd and 3rd gear. New clutch of course. Got all the arc racing features there hasn’t been a g37/370z I’ve lost to yet. De comes with more torque from factory already so me keeping my torque gains higher then wheel horsepower helps, torque automatically transfers power up top with these cars regardless. Tomei cams btw rev limiter set to 7,700
Good vid! With my full engine build I went with PPE long tubes with slightly larger primaries to match my cams (I checked with JWT). Excellent quality too and less/no trumpet at equal length with my ex combo and also available for RHD. Yep, can fit without a ramp!
@@AnthonyJ350 That's right, they give you extensions for this. Although I have a Haltech widebands kit and a Link ECU (so you don't need them). I wrapped them with DEI stuff, be warned you'll get fibre's everywhere from them 😆
Stillen has a long credible reputation for developing products for Nissan. I think fitment and flow would be good. But the description says the material us mild steel, so if you do decide to get them, have them Cerakoted, unless if you know the factory coating is proven very reliable.
@@AnthonyJ350 awesome, picked up a pair for $60 at the junkyard! 🤣 If I sprayed a ceramic heat coating on them with header wrap afterwards would that be sufficient?
I work 40 hours a week, only there days though. All I got is time so. I’m gonna give it a shot with the cheap headers. If it’s a lost cause oh well I lost 200 bucks. I’ll come back and update this once they’re in.
If I’m not mistaken the z1 headers the primaries are bigger than tomei and dc headers which is why z1 headers don’t fit perfect since the tuning is bigger is what I heard
I also heard they were originally designed for a forced induction setup. Originally designed by Momentum then Z1 bought the rights. I don't think you can go wrong with either brand of header honestly.
@@Speeder105 Not sure how. The Z1 and Tomei primaries collector looks like the same quality how they merge. Have you compared them in person, side by side?
Hey Anthony, I recently bought HR/VHR headers for my DE as this engine only has the Tomei headers as the best headers out there and the rest or even more expensive since Tomei is already out of budget. Should I be ok with the install on the HR/VHR headers on my exhaust? I believe it will give great gains and much cheaper than badly welded/cheap custom headers.
I think factory HR headers will be a great improvement and more budget friendly. They'll also probably be easier to install. You'll probably have to move two studs on each side and you'll need to switch to an HR high flow catalytic converter. I highly recommend getting your headers Cerakoted in order to help keep under hood temperatures down and run the factory heat shields from an HR if you can as well and have them coated as well.
@@AnthonyJ350 actually bought the headers but no heat shields so I'll have to see how I could DIY some heat shielding for the gas lines and engine in general hopefully edit: I was actually searching all over ebay for them and found an amazing clean pair for headers just no heat shielding but for less than $130 it's better than a rusted out manifold header set.
@@AnthonyJ350 it was a lot i bought them with with Billet Oil Pump Gear my bill was 2k CAN... so that's about 1600 just the headers alone, yeah i was looking at tomei v2 headers but they were on back order for 6 months. both z1 and tomei like seem good choices
@@AnthonyJ350 tomei v1 headers were cheaper around 900, but tomei v2 were more expensive around the same price at the time z1 headers were 1200usd. v2 tomei headers are not even on even on z1's web site any more unless it with the test pipe and header combo and there's a waiting list untill 2023. i just wen z1 headers cus they looked like really good quality
@@AnthonyJ350 I think they’re advertised as equal length in the description, that’s the whole reason I bought them, I was a little alarmed when I heard you say that. 😂 I also blew into all three runners, and they all make a pretty similar pitch.
@@CiccccciO I was looking at their web site. The state it's equal length. But if you look at the side profile picture, the rear primary looks significantly shorter than the primary at the front of the engine. dcsports.com/products/dc-sports-polished-header-03-06-nissan-350z-03-06-infiniti-g35 If you look at the Tomei design, the rear primary has this big loop that adds length to it.
@@CiccccciO If you were to stretch the DC sports primaries out, it might be pretty close because they look like they stick out to the sides. I'm sure they flow very well.
@@AnthonyJ350 I never realized how much different the V1 and V2 Tomei headers looked. That’s a cool design compared to other shorties too. I mean, the DC ones are still a little better than OEM, and I don’t have a budget for Tomei, so I’ll settle with what I have for now 😂 Great video, btw. Comparing all three types thoroughly
Putting headers onto the g37, or even g35 ain’t even worth the time. It’s dead ass a 10whp gain and people run the stock headers with and without turbos. Too me it’s a waste of time and money.
I think I discussed those points in the video. It's worth it to a certain extent, because the HR went to a shorty header design. There must be a reason changed it. If the DE manifold worked so well, wouldn't they continue to use it? As opposed to manufacturing a more expensive header?
This has to be the best explanation about exhaust manifolds for the 350z. I'm considering getting these, but I'll probably wait till version 2 of these come out on September.
Version 2 of the Tomeis? I thought version 2 is already out tomeiusa.com/_2003web-catalogue/000_expreme/each-product/vq35-z33_exmani_ver2-en.html
@@AnthonyJ350 on websites like enjuku racing there's a pre-order for date September 22, and on the Z1 website I'm not sure if it's the version 2. Plus, Z1 is prohibited to sale these to the state of California, which is where I reside.
@@Ragnarok1881 Try iRace AutoSport where I got mine. Another U.S. viewer they got it from there and it's Canadian.
Wow this video was well made and very thorough. This proves that you never really know what you're buying until you get them installed. I liked how you found the fine details with these comparisons. The spot welds and measurements, design flaws, price points and build qualities. This information is priceless. It's always good practice to inspect aftermarket products. Very impressed with this video. Great job man!
Ya it was definitely interesting comparing everything up close. I think the Tomei units were the ones to go with.
I thoroughly enjoy your channel and just watching your new and old videos
So awesome to hear you're liking all the videos that we've make over the years!
Dude this is what I needed for real! Great video! I am going to get the Tomei headers for my 2009 370Z and this has validated my choice that much more!
Glad to hear the video helped you!
Quality R&D always pays off in the long run, love the depth of the video!
Hopefully shows when driving and on the dyno. I have them installed now and the car revs much easier and smoother.
Another well sorted video, great info on the budget headers as well. People don't usually think things out before buying, I'm shocked that Z1 actually raised the prices on their own headers when they were the same price as Tomei back when I purchased. I don't see how anyone could justify paying more for the Z1 when it's not a complete kit and about the same quality as the Tomei.
Thank you! I was too, Z1 priced themselves out of contention for me and I can't say their design is any better or worse than Tomei.
I've called z1 a few times to see if I could purchase replacement bolts and brackets separately if needed. I was surprised that they could not help. I was trying to replace the ball bracket for the trunk struts on the Zed rather than ordering the full set. But in this case they don't include the full set with their price
@@BoOmBaMan unfortunately they aren't very useful. It's hit or miss from what I've heard/experienced, shame cause it seems like they are passionate about these cars but I guess some employees don't share the same enthusiasm. I've spent a lot of money with them I've had so many customer service issues with them, because of this I only buy products with their name on it. It seems they care more about those, in the end they make sure I'm taken care of if I have any problems but they have treated my like I'm wrong or I'm the problem many times.
Nice work, Anthony. Spare a thought for us Aussie's having to pay duty and shipping for all the gear we buy from the States. Brutal
What about buying from Canada? Maybe less if coming from within the Commonwealth? Lol. Check out irace autosports. They're Canadian
@@AnthonyJ350 haha, it'd be nice to get SOME kind of benefit from the Commonwealth ;)
I'll give irace a look though
@@irresponzible Let us know if the pricing ends up any better for you after duty. Be good to let others know.
Anthony ,excellent explanation on those headers. Nice touch finding an expert explaining the differences. Yes refinement and quality do cost more money. It all depends on your budget and what results you are expecting. You see soooo many aftermarket kits on Ebay that are cheap and perform poorly. Let the Buyer BEWARE. Still I'm curious on Dyno Graphs on the 3 different headers on a same car, Or 1/4 mile times. It may be hard to swallow spending $2000+ on an exhaust system to get a 5 hp gain or reduce your 1/4 mile times by 0.2 seconds.
Thank you. I'm just trying to mimick what Nissan has done over the years. There's a reason they went to a header design for the HR.
I can tell you after running the engine, it revs much easier now. So driving it will be more satisfying.
@@AnthonyJ350 Could be an alternative and cheaper upgrade for DE owners to go for this route; HR headers + HR highflow cats/test pipes.
@@hakimrahman85 Totally can be, we discussed that point in the video. I would definitely get them coated as well with Cerakote. A DE engine would definitely see gains with a stock HR header.
I had my own headers custom made. Incorporated the test pipes into them so they run all the way down to the y pipe and I added small vibrant resonators with flex pipes at the connection. Made 28whp with the custom exhaust headers combo
You made 28whp on the first design and first test on the dyno? That's amazing! Are they equal length?
@@AnthonyJ350 I actually made 28whp and 30wtq. That was the first mod as well as custom 2.25” to 2.5” true dual with x pipe with longer vibrant resonators in the middle. 5” exhaust tips. I ended up with 03 G35 coupe 6mt FBO de with motordyne plenum spacer, complete port and polished intake manifold from top to bottom. Gasket matched and heat reduced with copper gaskets, upgraded 550cc injectors, 255 walbro pump, bigger 80mm tb from vq45 m45, manifold matched neck by porting, custom Jim wolf ztube with 6” stillen velocity stack ported to 7” with 10” KN dry filter custom heat shield, GTR coil packs, NGK stage 2 colder plugs, uprev tune with arc features. Put down 312whp and 293wheel torque, 3.9 370 nismo gears, 1 pc aluminum drive shaft, complete poly engine trans and diff mounts, lighter alternator pulley, l off hater crankshaft pulley, power steering delete, smaller belt, upper fan tensioner delete. Made my own oil catch can with stainless lines, meth spray into intake from windshield reservoir. Colder Intake temps. Chirps from 1st to 2nd and 3rd gear. New clutch of course. Got all the arc racing features there hasn’t been a g37/370z I’ve lost to yet. De comes with more torque from factory already so me keeping my torque gains higher then wheel horsepower helps, torque automatically transfers power up top with these cars regardless. Tomei cams btw rev limiter set to 7,700
@@Eurolanta6 ok so cams and everything were done. That kind of power increase makes sense with everything done.
Good vid! With my full engine build I went with PPE long tubes with slightly larger primaries to match my cams (I checked with JWT). Excellent quality too and less/no trumpet at equal length with my ex combo and also available for RHD. Yep, can fit without a ramp!
That's awesome! Thanks for sharing!
Did you have to modify the wiring for the 02?
@@AnthonyJ350 That's right, they give you extensions for this. Although I have a Haltech widebands kit and a Link ECU (so you don't need them). I wrapped them with DEI stuff, be warned you'll get fibre's everywhere from them 😆
@@TheRobphobos Thanks for sharing your experience!
dc sports states that there short tube headers are equal length
That's cool!
What's your opinion on stillen headers?
Stillen has a long credible reputation for developing products for Nissan. I think fitment and flow would be good. But the description says the material us mild steel, so if you do decide to get them, have them Cerakoted, unless if you know the factory coating is proven very reliable.
@@AnthonyJ350 awesome, picked up a pair for $60 at the junkyard! 🤣
If I sprayed a ceramic heat coating on them with header wrap afterwards would that be sufficient?
@@FullSendX I think so. Just need to sand blast them and coat the inside good.
I work 40 hours a week, only there days though. All I got is time so. I’m gonna give it a shot with the cheap headers. If it’s a lost cause oh well I lost 200 bucks. I’ll come back and update this once they’re in.
Please let us know how it goes.
Update don’t buy cheap headers, you will beat the life out of them trying to make them clear the steering rack. Save money and buy good ones.
are isr headers short tube headers equal lengths
I'm not sure, you'll have to contact the manufacturer to confirm.
What is a good header to get for a nissan altima 2015 2.5L
Stillen makes good products.
If I’m not mistaken the z1 headers the primaries are bigger than tomei and dc headers which is why z1 headers don’t fit perfect since the tuning is bigger is what I heard
I also heard they were originally designed for a forced induction setup. Originally designed by Momentum then Z1 bought the rights. I don't think you can go wrong with either brand of header honestly.
Another thing to consider with Z1 headers is those headers have a smoother merge collector design than the Tomei headers .
@@Speeder105 Actually smoother or the collector tip is just longer?
@@AnthonyJ350 The Collectors are smoother at the outlet part of the headers than the Tomei Headers.
@@Speeder105 Not sure how. The Z1 and Tomei primaries collector looks like the same quality how they merge. Have you compared them in person, side by side?
Hey Anthony, I recently bought HR/VHR headers for my DE as this engine only has the Tomei headers as the best headers out there and the rest or even more expensive since Tomei is already out of budget. Should I be ok with the install on the HR/VHR headers on my exhaust? I believe it will give great gains and much cheaper than badly welded/cheap custom headers.
I think factory HR headers will be a great improvement and more budget friendly. They'll also probably be easier to install. You'll probably have to move two studs on each side and you'll need to switch to an HR high flow catalytic converter. I highly recommend getting your headers Cerakoted in order to help keep under hood temperatures down and run the factory heat shields from an HR if you can as well and have them coated as well.
@@AnthonyJ350 actually bought the headers but no heat shields so I'll have to see how I could DIY some heat shielding for the gas lines and engine in general hopefully
edit: I was actually searching all over ebay for them and found an amazing clean pair for headers just no heat shielding but for less than $130 it's better than a rusted out manifold header set.
@@vq.krisss Get them Cerakoted
@@AnthonyJ350Would you provide the Cerakote kit you used? I really love the color you used but don't know which one it is.
I agree average person aint turning 5-6000 rpm just crusing around town in there crusier.
We have to be realists of how our vehicles are actually being used.
i picked up some z1 headers for mt g35 coupe
Awesome! How much were they? Were you looking at any other brands?
@@AnthonyJ350 it was a lot i bought them with with Billet Oil Pump Gear my bill was 2k CAN... so that's about 1600 just the headers alone, yeah i was looking at tomei v2 headers but they were on back order for 6 months. both z1 and tomei like seem good choices
@@dylan2g Not cheap, about $400 more than the Tomei. The Z1 is an equal length design, correct?
@@AnthonyJ350 tomei v1 headers were cheaper around 900, but tomei v2 were more expensive around the same price at the time z1 headers were 1200usd. v2 tomei headers are not even on even on z1's web site any more unless it with the test pipe and header combo and there's a waiting list untill 2023. i just wen z1 headers cus they looked like really good quality
@@AnthonyJ350 tomei mite sound better who knows
Equal length will also help retain that VQ sound.
I’m trying to get rid of the VQ sound😵💫
@@itskidkelly might I recommend a nice 2004 honda civic. Might be more your tone
Here's how my car sounds now ua-cam.com/video/saOUPH4TEyk/v-deo.html
@@itskidkellyVQ without trumpet
I like my IRS long tube header.
Nice! Did you coat or wrap them?
@@AnthonyJ350 I coated them with VHT flame proof.
@@BabyUnicorns2000 How is the paint holding up?
@@AnthonyJ350 so far so good it's only been 2 months
Irs gives you the long tube once a year.😂😂
I used $80 ebay headers. Worked great NA and supercharged. I beat the shit out of it.
Awesome! Fit perfectly?
Headers are a pain in the ass to install. Don’t buy cheap headers , the welds crack.
Definitely only install high quality headers
I thought DC’s were equal length?
In the pictures it doesn't look like it. I could be wrong. Let me know if DC Sports states they're equal length.
@@AnthonyJ350 I think they’re advertised as equal length in the description, that’s the whole reason I bought them, I was a little alarmed when I heard you say that. 😂 I also blew into all three runners, and they all make a pretty similar pitch.
@@CiccccciO I was looking at their web site. The state it's equal length. But if you look at the side profile picture, the rear primary looks significantly shorter than the primary at the front of the engine. dcsports.com/products/dc-sports-polished-header-03-06-nissan-350z-03-06-infiniti-g35
If you look at the Tomei design, the rear primary has this big loop that adds length to it.
@@CiccccciO If you were to stretch the DC sports primaries out, it might be pretty close because they look like they stick out to the sides. I'm sure they flow very well.
@@AnthonyJ350 I never realized how much different the V1 and V2 Tomei headers looked. That’s a cool design compared to other shorties too. I mean, the DC ones are still a little better than OEM, and I don’t have a budget for Tomei, so I’ll settle with what I have for now 😂
Great video, btw. Comparing all three types thoroughly
Putting headers onto the g37, or even g35 ain’t even worth the time. It’s dead ass a 10whp gain and people run the stock headers with and without turbos. Too me it’s a waste of time and money.
I think I discussed those points in the video. It's worth it to a certain extent, because the HR went to a shorty header design. There must be a reason changed it. If the DE manifold worked so well, wouldn't they continue to use it? As opposed to manufacturing a more expensive header?
I also used to think that, till having them on the car. The car revs easier and smoother. It should definitely improve the driving experience.
The cheap header looks very badly made. The other one looks like a trombone which is quite apt :-)
I'm happy I went with Tomei, not cheap but you have to pay for quality.