DIY_Exhaust Flex Pipe Replacement for Mazda 3 - The Easy Way
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- Опубліковано 15 жов 2024
- This 2008 Mazda 3 with 2.0L engine has a 1 piece exhaust manifold, catalytic converter, flex pipe and flange. I tried buying a universal flex pipe from the local auto parts store but couldn't find the right length and also would have had to weld the old pipe (flange end) and new flex pipe at an angle - not for beginners like me.
The full replacement part was over $1000 and needlessly replaces the exhaust manifold and cat. In addition, you could damage the old O2 sensor during removal and exhaust manifolds can be difficult to remove.
Muffler Express offers a solution for the 2.0 and 2.3L that doesn't require welding or removal of the exhaust manifold. This video shows the process of installing the unit while saving the original oxygen (O2) sensor. It is a DIY job for sure.
part number:
00-2-0079.0 is for the 06-10 mazda 5 2.3L & 04-09 mazda 3 2.0L and 2.3L
Link to video showing how to make/install new heat shield: • DIY_Making Exhaust Hea...
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This video just might have saved me a Hundreds of Dollars. Thank you for the video
Very much appreciatted..I'll use a different apprch, i am not dealing with expanding any pipes..., I'll just buy a new downstream O2 sensor, plug it into the new direct fit flex pipe and cut the rusted out old one alone with the header pipe. I'll use a recip saw with a diablo 6" carbide...the exhaust is 3" diameter max. For sure I'll use exhaust cement.
Going to attempt this today on my son's 2010 Mazda 3
That cross member makes it really inconvenient to cut existing pipe off from header cat. That will be a pain in the neck for me to accomplish, but you have a nice video suggesting it is possible, so I might give it a try. Maybe I ought to block out a bout 4 hours of my day??
The key to making it easy to cut is to have the vehicle high enough off of the ground so that you can get a reciprocating saw in there to take care of it. Get some 6x6 blocking and get it jacked up as high as you safely can get it...
Get to look forward to doing this next week. 👍🏼
did this leak make a roaring noise on acceleration from a light but no noise at idle? I have a just an exhaust noise under throttle but seems to be only off idle. cruise has no noise...?
2 garages quoted full manifold replacement including flex, not wanting to do the job otherwise. It's still unclear to me what you ended up to do near the O2 sensor... Use a widened piece and a clamp to attach both pipe ends?
Would you happen to have the exact part number of that? Greatly appreciated if you do. Thanks in advance
Hi Barry, I reached out to the manufacturer and recieved a response 20 mins later. Please see updated video description for part number.
@@mrdiyguy123 WOW! That is incredibly kind of you. SO much appreciated. Thanks again for taking the time to provide the item number. So awesome. Thanks again!
This looks like the situation I have now, But my hole is directly underneath the O2 sensor, and the flex pipe is starting to go.😢
I forgot,My car is 13 with skyactiv, if that matters, Does anyone have any ideas for me. I would appreciate any, besides going to the dealership. That's over 4k.
I’ve gotta Mazda 6 same set up you think this would work I’m having hard time finding the aftermarket pieces
It likely will work for you but I suggest co teaching Muffler Express to be sure.
My mistake my friend said she has 3 not a six
How in the hell were you able to cut the pipe behind the secondary o2 sensor with that front cross-member in the way? My hand-held grinder with a cut-off wheel I don't think will fit up there.
I am trying to remember. Maybe I cut it coming in from the rear of the vehicle direction. I have an I line recip saw and a 90 degree cut off dice in an air diegrinder... perhaps I used one of those.
CAN YPU FIX MY MAZDA PIPE FOR ME
Is it still holding up?
Yep. no issues. no leaks.
Filmed horizontally:)
With cross bar in the way, i assume that's not a easy job
It really wasn't bad. The key piece was not having to weld anything. Certainly having the car high enough was a big help.
I ordered the same kit but it didn’t come with an o2 sensor bung. I know it’s a bitch to take that sensor out of its place. I got around it unplugging the sensor connector and removing the old sensor connected on old flex pipe. Once you do that it wasn’t hard to take the old sensor out and put on the replacement flex pipe. It required some propane torch to heat the sensor bolt though. Hardest thing is that Mazda welded them lower connection bolts and new nuts are a bitch to put on the old bolts. I couldn’t find room to put an impact gun in there. Car isn’t on a hoist but on ramps. So I called it a day and I’ll deal with rest in the morning.
It sounds like you have a good strategy. You should reach out to the manufacturer with your feedback. They are extremely responsive to customer feedback in my past experience. They may wish to know that your expectations of the bung were different than what arrived.
Wondering how everything is holding up? Just ordered a mid range version of the same thing for my 2007 Mazda5. Definitely don't want to pay for the whole assembly. With 225k on the car, i'm pretty sure CAT will last another little while. Plus, mechanics would probably sell old parts for $$$.
Anyways, it's nice to know there's a non-weld option! Just gotta find a shop with all the right tools in Hamilton, Ontario...
F-ing shops are so lazy lately... nobody fixes anything anymore, just swap for a cheap Chinese shit that lasts less than 50k.....After that, you're back in the shop. And buying oem parts....well... not in our budget unfortunately.
Repair is still holding up perfectly no leaks
Dude!
Muffler express has no phone # or customer support .
CAN YOU FIX MY PIPE