I’m glad you enjoyed my car bro!! The second they told me you were going to test it before I picked it up, I said yes so fast! I’m loving the GT4 everyday! Good video!
Yes Miles!!!! Great to see the break down dynos with all the individual mods. I have a similar setup with tune, OAPs and JCR race pipes, lightened flywheel, BMC air filters...it has completely squashed my desire to spend double the money to get a GT3 since it now has the high pitched sound and power...it's incredible ROI on an NA. I didn't do big bang and just kept adding bit by bit...now 2.5 years of ownership later, finally happy with the whole setup.
Great video. I have the full Soul Race exhaust and Stage 2 M-Engineering on my 20 GT4 and always said it was close enough to my buddy's GT4RS. Next would be a roll or from a dig v. RS. Thanks for putting this together!
Good job guys. Have the tuners ever noticed if the stock ECU tunes out any mods through torque management or something? This is pretty common on modern ECU's and without tuning, mods are basically useless.
Sounds and looks awesome! Im running catless dundon headers on my 981 GT4 so it really wakes up the car over stock setup and screams all the way to redline, you gotta hear it one day bro!
Great video! Confirms what I found with my complete Dundon setup (headers, OAPs, muffler + tune), which is that with the right parts and tuning the GT4 can go toe2toe with a stock 4RS. The Dundon setup also nets the same gains overall (+/- dyno/car variations) from stock as you achieved with the full race + tune. Impressive gains for sure!
Did the comp header/ oap dyno test have a race muffler? The talk leading into it made it clear it was just comp and oap but the video went right into full race exhaust..
Really Micky!!! Really… Now I have to go get some headers and a tune! Thanks Johnny! 😂 I like my Soul setup with just OAPs and Valved Soul Exhaust. I can still hear myself think. 😉
Awesome vid! I have a 718 gt4 with full jcr headers/exhaust no tune and it made a noticeable power difference. Pretty much neck and neck with a stock 991.2 gt3 pdk now. (My car is manual) Do you remember peak power and torque for your deman gt3on 93? Can’t find your dyno video anymore. I still want more power lol. I think lower gearing would do wonders also, esp on mtn roads.
As usual you make the best scientific exhaust experiments on youtube. Thats nuts for the gt4. Looking forward to an M tune for the 4rs. That would be a wicked little beast.
The BMC filters and OAP’s are all you need to get. Still need to disconnect the valves or get a controller, but that’s free. $100k less and 1 pedal more.
❤😂😢😮😅😅😊😊😊😊😊😊😊 hell yeah it’s realistic for that for that Porsche CAYMAN that is so damn sweet these days I will get a Porsche. I’ve been liking Porsche since I was seven and I’m 57 so hopefully I get one on my 60th birthday who knows oh well take care, bro. Have a good day.
❤😂🎉🎉😢😢😢😢😮😊😊😊😊😊😊😊😊😊😊😊😊😊 that’s Hella sweet Porsche cayman that is so damn sweet. Keep up the good work and if I see another good video I will subscribe thanks. Take care, bro. Have a good day. Good weekend.
Great comparison, valid data, but I'll never understand how these things produce such different results in the US than in Europe. Can only imagine the fuel is garbage over there or something... couple of years ago I documented the difference each mod made on my 718 GT4 manual from Soul race headers with generic OAPs (it's just a pipe) to adding a Soul valved exhaust to adding an M-Engineering tune. The full exhaust system added 30 horsepower (19 just headers and OAPs) but putting the tune on top of it started off with a loss in power - way too rich and the stock ECU was running circles around it keeping it both leaner AND with more timing. After some revisions a few HP were found but basically negligible. Only reason I kept it on the car was that I needed the increased rev limit with the manual box on track. To see an identical GT4 with the same exhaust stuff on it and the same tuner get nearly double the gains makes little sense to me. FWIW my car was fast stock in terms of 60-130 times and even faster with all the mods, putting in the same time as what the average stock 991 GT3 manages. I can only assume that the US car started off performing worse as a baseline for whatever reason. It's a trend I see over and over with various Porsches, the mods just don't produce the same results on this side of the pond.
On the fuel ⛽️ topic, it’s well documented that Sate side 91 is equivalent to European 95. The difference you’re seeing is most likely euro tuners are blowing smoke up yalls asses
@@frederickcook87 It's not about the different number on the fuel, more like what is 93 vs 98 RON actually like in practice. Plus the issue of using rudimentary dyno's in the US means nobody has a clue what the stock car is actually making but the "assumption" is that whatever number comes out = stock rated crank power.
@@JCviggen1lmao @ rudimentary dynos 😂😟😂 You right, we just ass backwards stateside and don’t know how to do anything 😂😖😂 even though we are European car manufacturers BIGGEST market… FOH
@frederickcook87 Yeah sorry to say but dyno wise the US is pointless to compare with. In Europe we have lots of places that run the same equipment that the OEMs who build the cars use for post production checks.
Our local tracks here in the Northeast are very restrictive on sound Could I use a car graphic exhaust valve controller to keep the valves closed during race events without melting my catalytic converters?
I would not run on the track with valves closed. If you look at Cargraphics valve controller manual, they recommend against running with valves closed for extended periods and against running the car hard with valves closed.
@Mickey. M-tuning is asking for a lot of money for ~30 hp gains. If it were a turbo application with 130 hp+ then fine. If they sold it for 1.5k they would sell it all day (including to me)
If the GT4 is boring and doesn't get your heart racing in stock trim you are a broken human being. The 4RS is better...sure...but the basic GT4 is amazing. Your brain is broken sir lmao.
![Gran Turismo 7 | Honda Civic Si Extra (EF) '87 - Tsukuba Circuit [4K PS5Pro]](http://i.ytimg.com/vi/o9jS6ZuFV5s/mqdefault.jpg)
I’m glad you enjoyed my car bro!! The second they told me you were going to test it before I picked it up, I said yes so fast!
I’m loving the GT4 everyday! Good video!
Happy you love it man. The car turned out amazing
Let’s get together one of these days and make some content!
Yes Miles!!!! Great to see the break down dynos with all the individual mods. I have a similar setup with tune, OAPs and JCR race pipes, lightened flywheel, BMC air filters...it has completely squashed my desire to spend double the money to get a GT3 since it now has the high pitched sound and power...it's incredible ROI on an NA. I didn't do big bang and just kept adding bit by bit...now 2.5 years of ownership later, finally happy with the whole setup.
Nice! Which LWFW did you go with?
Congrats man. Happy you are loving it. Definitely a great car for the money with the right mods
@@flsupraguy 9m lightened fly. I’m in UK so drove up there for install. Top quality products.
There's no shot this doesn't drone some. The resonated OAP can't be that magical.
Great video. I have the full Soul Race exhaust and Stage 2 M-Engineering on my 20 GT4 and always said it was close enough to my buddy's GT4RS. Next would be a roll or from a dig v. RS. Thanks for putting this together!
John is a good dude and totally passionate about what he does.
Good job guys. Have the tuners ever noticed if the stock ECU tunes out any mods through torque management or something? This is pretty common on modern ECU's and without tuning, mods are basically useless.
Also, what's with the surging idle? Is that normal with that tune?
JetFuel - you need these mods lol...love your channel man! 981 GT4 can't touch the sound with the full exhaust ;)
M-Engineering worked this out after I finished with the car. They just wanted to get me something to drive that day
Sounds and looks awesome! Im running catless dundon headers on my 981 GT4 so it really wakes up the car over stock setup and screams all the way to redline, you gotta hear it one day bro!
Bro would love to hear it. Congrats on the amazing exhaust and car.
That is an amazingly beautiful GT4! I want those wheels for my 981 GT4.
Great video! Confirms what I found with my complete Dundon setup (headers, OAPs, muffler + tune), which is that with the right parts and tuning the GT4 can go toe2toe with a stock 4RS. The Dundon setup also nets the same gains overall (+/- dyno/car variations) from stock as you achieved with the full race + tune. Impressive gains for sure!
@@doughansen1285 happy you saw similar results my friend.
I think that gt4 is the best looking Porsche that I’ve ever seen.
@@jakelamb4136 it’s beautiful. I agree.
Did the comp header/ oap dyno test have a race muffler? The talk leading into it made it clear it was just comp and oap but the video went right into full race exhaust..
Really Micky!!! Really… Now I have to go get some headers and a tune! Thanks Johnny! 😂
I like my Soul setup with just OAPs and Valved Soul Exhaust. I can still hear myself think. 😉
Bro, Get it!!!!! So happy you're reaching out. Hope you're doing great.
Awesome vid! I have a 718 gt4 with full jcr headers/exhaust no tune and it made a noticeable power difference.
Pretty much neck and neck with a stock 991.2 gt3 pdk now. (My car is manual)
Do you remember peak power and torque for your deman gt3on 93? Can’t find your dyno video anymore.
I still want more power lol. I think lower gearing would do wonders also, esp on mtn roads.
Yes it would. Dyno video is back up for your viewing pleasure 😉
Awesome ty you’re the man!
Sounds great, but what is going on with the lopey idle?
As usual you make the best scientific exhaust experiments on youtube. Thats nuts for the gt4. Looking forward to an M tune for the 4rs. That would be a wicked little beast.
Any dyno results of just the OAP and stage 2 tune together?
Wouldn't an intake take this car up another notch? Was the intake upgraded in anyway?
The BMC filters and OAP’s are all you need to get. Still need to disconnect the valves or get a controller, but that’s free. $100k less and 1 pedal more.
Facts
❤😂😢😮😅😅😊😊😊😊😊😊😊 hell yeah it’s realistic for that for that Porsche CAYMAN that is so damn sweet these days I will get a Porsche. I’ve been liking Porsche since I was seven and I’m 57 so hopefully I get one on my 60th birthday who knows oh well take care, bro. Have a good day.
Can’t wait to get one for the 60! Have a great day man.
❤😂🎉🎉😢😢😢😢😮😊😊😊😊😊😊😊😊😊😊😊😊😊 that’s Hella sweet Porsche cayman that is so damn sweet. Keep up the good work and if I see another good video I will subscribe thanks. Take care, bro. Have a good day. Good weekend.
I will get one just like yours because its beautiful
Please do
Great comparison, valid data, but I'll never understand how these things produce such different results in the US than in Europe. Can only imagine the fuel is garbage over there or something... couple of years ago I documented the difference each mod made on my 718 GT4 manual from Soul race headers with generic OAPs (it's just a pipe) to adding a Soul valved exhaust to adding an M-Engineering tune. The full exhaust system added 30 horsepower (19 just headers and OAPs) but putting the tune on top of it started off with a loss in power - way too rich and the stock ECU was running circles around it keeping it both leaner AND with more timing. After some revisions a few HP were found but basically negligible. Only reason I kept it on the car was that I needed the increased rev limit with the manual box on track. To see an identical GT4 with the same exhaust stuff on it and the same tuner get nearly double the gains makes little sense to me. FWIW my car was fast stock in terms of 60-130 times and even faster with all the mods, putting in the same time as what the average stock 991 GT3 manages. I can only assume that the US car started off performing worse as a baseline for whatever reason. It's a trend I see over and over with various Porsches, the mods just don't produce the same results on this side of the pond.
On the fuel ⛽️ topic, it’s well documented that Sate side 91 is equivalent to European 95. The difference you’re seeing is most likely euro tuners are blowing smoke up yalls asses
@@frederickcook87 It's not about the different number on the fuel, more like what is 93 vs 98 RON actually like in practice. Plus the issue of using rudimentary dyno's in the US means nobody has a clue what the stock car is actually making but the "assumption" is that whatever number comes out = stock rated crank power.
@@JCviggen1lmao @ rudimentary dynos 😂😟😂
You right, we just ass backwards stateside and don’t know how to do anything 😂😖😂
even though we are European car manufacturers BIGGEST market…
FOH
@frederickcook87 Yeah sorry to say but dyno wise the US is pointless to compare with. In Europe we have lots of places that run the same equipment that the OEMs who build the cars use for post production checks.
@@JCviggen1you hell lil fella 😂
Would it pass an emissions test ?
Our local tracks here in the Northeast are very restrictive on sound Could I use a car graphic exhaust valve controller to keep the valves closed during race events without melting my catalytic converters?
I would not run on the track with valves closed. If you look at Cargraphics valve controller manual, they recommend against running with valves closed for extended periods and against running the car hard with valves closed.
@Mickey. M-tuning is asking for a lot of money for ~30 hp gains. If it were a turbo application with 130 hp+ then fine. If they sold it for 1.5k they would sell it all day (including to me)
@@kiyalami8478 I would hit them up and let them know 🙏🏻
Great power upgrades, but the exhaust changes make it too loud for a lot of tracks. I use my GT4 mostly for track vs street.
Yea that makes sense.
How does the torque (after tune/exhaust) compare with the .2GT3rs?
Torque is about 10 less than a 991.2 RS on this dyno with these mods
Saw the car and thought I clicked on kfletch's channel lol
🤍
i have souls race header, over axle pipe, exhaust system and tune installed on my gt4. i need these rims
Amazing man.
Great vid! There is also a company that makes the 4rs carbon fiber intake for gt4's for 10k.
10k 😟
This would be an amazing mod. Need to look this up to hear it
@@MiamiMiles the name of the company is Gold Leaf. They have audio clips on their UA-cam and IG accounts...
@@frederickcook87 lol I know man
@@MiamiMilesGold Leaf Performance
I’m have Bgb air intake system looks good sounds good and give over 25whp
😮👏👏👏
I thought the GT 4 has 415 bhp ?
That’s at the crank, not at the wheels. They purposely tell you that number to make it seem like more than it is.
Nobody wanna see ts post the m3
Coming soon
If the GT4 is boring and doesn't get your heart racing in stock trim you are a broken human being. The 4RS is better...sure...but the basic GT4 is amazing. Your brain is broken sir lmao.