Stock e30 exhaust size

[Nick_e30]

im also thinking of doing a cat delete. are you putting anything in its place or just straight pipes O.P, i have a magnaflow and its already loud..thinking about putting another magnaflow on lol

I have a Supersprint on mine ,There are straight pipes in its place right now. The tone/loudness barely changed you can hardly tell it's gone. About to weeks ago I went over a speed bump a little too fast and scraped across it which caused an exhaust leak so around 4kish rpms it's real loud and raspy

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[horse30]

im also thinking of doing a cat delete. are you putting anything in its place or just straight pipes O.P, i have a magnaflow and its already loud..thinking about putting another magnaflow on lol

[Reub_e30]

measure the pipes...

Thanks for your helpfull comment.


For the OP: Its 1.75"

http://www.bimmerforums.com/forum/showthread.php?531108-Exhaust-pipe-size

[skunka]

measure the pipes...

[Nick_e30]

Planning on doing a cat delete this week I have an 89 325i is 1.75 the size of the pipes before and after the cat ? I need to know what size pipes I should buy