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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Catback exhaust install, any tips?



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      12-29-2011, 04:55 AM   #1
woptang22
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Catback exhaust install, any tips?

Well I have an e90 335i sedan and will be installing a turner motorsports exhaust soon. A friend and I are attempting to do this install ourselves. Im not a very mechanically inclined person but I figure this cant be that difficult. But I wanted to see if anyone could give me any tips on this install? Is there anything out of the ordinary that might pop up upon install or is this just an easy, "unbolt and uninstall stock exhaust, then bolt in new exhaust," type of install? I apologize for the newbie question. And most people may say just take it to a muffler shop and have it installed. In the end, thats a possibility, but Im pushing around the idea of doing it myself just for the simple fact to show myself I may be able to do it since Ive been pretty much afraid to do anything to my cars. Just looking for some info and advice on what Im getting into. thanks everyone. John
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      12-29-2011, 06:43 AM   #2
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Check the dyi section. I would do it myself but I'm on my phone.
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      12-29-2011, 09:47 AM   #3
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It is pretty easy and straight foward. Just make sure you have E torque bits because you will need them. Other then that wd40 and a big flat head to remove the rubber exhaust mounts.
Also, I hate how the stock exhaust is one peice. Talk about a PITA
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      12-29-2011, 10:33 AM   #4
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A lift would help tremendously.
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      12-29-2011, 01:47 PM   #5
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Depending on how many miles are on your old exhaust. I highly suggest soaking the bolts with some WD-40 then using a butane torch. Those bolts can sometimes be hard to break loose. The install itself is very easy, took me less than 1 hour on a lift. Also, make sure you are using new exhaust gaskets....do not reuse any old ones.
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      12-29-2011, 05:50 PM   #6
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Or...take it to a local muffler/exhaust shop and pay them $100 to do the job right. They'll have a lift and the correct tools to get the old exhaust off without damaging anything and then install the new one correctly.
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      12-29-2011, 07:57 PM   #7
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I would check around your local shop and ask how much? $$

Last thing you wanna do is get crushed, hurt or break something on your car when a local could have done it right for $100. Although, if it seems to expensive and you just want the experience...I would buy all the necessary extras like gaskets, tools, etc. do some searching on DIY and have at it!!
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      12-29-2011, 08:19 PM   #8
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Thanks for everyones advice. I appreciate it. I guess if it could only cost around $100 for install there would be no reason to do it myself. lol. Except it would be nice to get some experience working on my own car. Ive always wanted to try some different mechanical jobs on my vehicles but never had the nerve to actually do it.
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      12-29-2011, 08:24 PM   #9
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Use PB Blaster or Kroil instead of WD-40. You definitely need two people to bring the stock exhaust down... it's heavy.
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      12-29-2011, 08:43 PM   #10
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If you do it at an exhaust shop you will need a truck to get it home.

The exhaust is easy. I did it by myself on my back using ramps. The worst part is it is heavy as hell. It is 4 bolts connected to the dp and 8 bolts pulling off that plate.
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      12-29-2011, 09:29 PM   #11
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Quote:
Originally Posted by DrivinMissDaisy View Post
If you do it at an exhaust shop you will need a truck to get it home.

The exhaust is easy. I did it by myself on my back using ramps. The worst part is it is heavy as hell. It is 4 bolts connected to the dp and 8 bolts pulling off that plate.
I did the same the other day. Took right over an hour and I used furniture moving pads to slide it out from under the car. It's not too bad, just bulky.
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