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-   -   When are exhaust upgrades NEEDED? (http://forum.e46fanatics.com/showthread.php?t=960945)

summit56 12-15-2012 02:10 PM

When are exhaust upgrades NEEDED?
 
Everyone seems to "upgrade" their exhaust no matter what. A majority of the time just for a better tone, growl, rumble, or whatever.
Ive got AA stage 1 with headers, rest of the exhaust system is stock. Im going to be upgrading to stage 2 this summer and was wondering if any actual power gains from exhaust work would help? the stock exhaust looks pretty big and appears to flow well, but looks and be deceving. I really like the sound I have now, just supercharger wooshing!!

Grande D 12-15-2012 02:19 PM

Ask AA, they would know best. Since you have a 328- if you have a stock exhaust- the answer is probably yes.

If you have a 325/330 with the dual exhaust- maybe not so much. Either way I think you can get some minimal gains on a lower stage FI car with a really well though out system.

MachRc 12-15-2012 08:12 PM

Since you uncorked the headers, whatever exhaust you get will be quite loud especially if it replaces the 2nd resonator closest to the muffler.

I wouldnt expect too much or if any gains in power, but it sure is going to sound great.

Dreikraft 12-15-2012 08:46 PM

upgrading exhaust is mostly for tone. you won't need to upgrade for performance reasons unless you're trying to squeeze out a few more hp.
nice to see fellow alaskans boosting e46s!

summit56 12-16-2012 02:53 AM

if i dont have to upgrade i wont. I love the quietness, pulling up to a piped out mustang, camaro, subee, evo, and holding my own. id like to keep it as quite as possible.
If i need something loud to drive i got the streetbike with a yoshimura exhaust for summer when the BMW isn't fast enough, and a 5.4 F-250 with dual pipes and a 800cc sled with an mbrp can for winter.
Maybe I will invest in a cut out.....straight nasty with the flip of a switch


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