sosnz 1 Report post Posted May 27, 2009 Next step for a wee bit of a performance boost is the exhaust on my baby, have been quoted $2500 for an import but would prefer to spend less for a local to build a similiar system. Can anyone suggest who i may approach? Thanks Mike Quote Share this post Link to post Share on other sites
hybrid 1039 Report post Posted May 27, 2009 Are you talking about upgrading from the block or from the headers backwards ? Keep the EVO headers as there isn't much more to be gained in your price range. For a street system I recommend your muffler choice (staying to BMW tradition and actually availible in NZ (6month old research here ) remus / supersprint / Milltek Sport or borla systems. e.g. They all make a rear muffler and center muffler sections for the e36 EVO m3. The gains your aiming for are in the 5500RPM range upwards ... more flow / freer reving in the higher ranges. Keeping in mind for street use no point over doing it on the noise thing .. trust me .. you _will_ get sick if you go too loud. Quote Share this post Link to post Share on other sites
Jamez 2147483647 Report post Posted May 28, 2009 if you want to keep the noise under 100db, does just putting a straight pipe(or dual pipes??) with muffler on the end cut it, hp and noise wise? as the e3050 with the exact same engine will be needing a new exhaust as I sold the stock one. Quote Share this post Link to post Share on other sites
sosnz 1 Report post Posted May 28, 2009 Are you talking about upgrading from the block or from the headers backwards ? Keep the EVO headers as there isn't much more to be gained in your price range. For a street system I recommend your muffler choice (staying to BMW tradition and actually availible in NZ (6month old research here ) remus / supersprint / Milltek Sport or borla systems. e.g. They all make a rear muffler and center muffler sections for the e36 EVO m3. The gains your aiming for are in the 5500RPM range upwards ... more flow / freer reving in the higher ranges. Keeping in mind for street use no point over doing it on the noise thing .. trust me .. you _will_ get sick if you go too loud. They are the system I was quoted $2500 for, so am after a locally made pipe with similiar specs Quote Share this post Link to post Share on other sites
hybrid 1039 Report post Posted May 28, 2009 Right. Well I wouldn't know any body in NZ who makes qaulity mufflers that sound good and aren't repco tin can specails. It's probably going to be a hard road finding something thats stainless for under that price for the 2/3rds system. (center muffler is very important). Quote Share this post Link to post Share on other sites
hybrid 1039 Report post Posted May 29, 2009 In otherwords... for your budget ... just grab one of the pre-made systems. Or save some more $$$ if you want a proper upgrade. Quote Share this post Link to post Share on other sites
morerevsm3 7 Report post Posted June 2, 2009 I made my own muffler out of 304 stainless, .9mm, the front resonator was removed and replaced with an X merge pipe, the whole exhaust from the header flanges is 2.5" the exhaust and alloy flywheel gained 20RWKW X pipe- muffler- sound- Quote Share this post Link to post Share on other sites
CamB 48 Report post Posted August 27, 2010 Random thread dig... Is there any sort of cross-over / merge pipe built into the factory exhaust ... and should there be? (note, I am too lazy to grovel under the car). Quote Share this post Link to post Share on other sites
thorburn 120 Report post Posted August 27, 2010 on a 328 you get this: I'm sure theres an article on this forum about the m3 exhaust system Quote Share this post Link to post Share on other sites
