Best Exhaust?

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Milwaukee, WI
#21
Re: Sorry!!

sstrawsb said:
Its a 325i
not a ricer loud but a deep throaty sound
i like the b&b triflo
i want a shiney chrome pipe probably duel but i dont want it so a softball can fit in it!
average gain
below 800$

THANKS ALOT![thumb]
I have the tri-flow on my 94 325i. It is a very high-quality system, with stainless steel welds in addition to being made completely out of stainless steel. When it came to my local indy shop it looked so beautiful that I wanted to buy another one and stick it on the wall!

The dual 3" tips give a good, non-grapefruit shooting look. The sound is loud, but very nice. Certainly not buzzy like the sound of many exhausts on small displacement four-cylinders. Several local shops have remarked that it was the best sounding BMW exhaust they had ever heard. It sets off car alarms in parking ramps. It does drone a bit below 2500 rpm, but most of them do. It is a lot louder than the RSR exhaust on my NSX (which is something I may change next year, along with some headers. So many mods, so little money)

The most cost-effective exhaust mod is to find an M3 exhaust. I have seen some tests that put the Supersprint and AA systems on top in terms of power increase. In any event, an exhaust isn't going to get you a lot of power, unless you put in headers and remove the cat, but you can expect 5-10 hp/ft lbs. at most, probably less.

I think appearance and sound are fairly important in an exhaust, as the difference between the performance gains from one exhaust to the next are not that significant. You want something that won't annoy you on long trips. The tri-flow may be too loud for some, but if you like your music loud it should be fine.
 
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Location
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#22
YoYiTo said:
I had this web-site on my comp.

It has sound clip of most asked exhaust

Hope this help!!![thumb]

http://www.europeancarweb.com/tech/0301ec_techbmw/index.html
Problem with that is all the exhausts tested were brand new. Exhaust notes will change once broken in. Some get louder and deeper while some get quieter... also they were all e36 M3 exhausts. Numbers will be lower if you use an M3 exhaust on a non M3 car because the piping is too big..

whats a good horsepower/torque gain for a new exhaust??
You're not really gonna get much gains from an exhaust alone. You really need to get the three basic bolt on first to notice anything significant.. ie. intake, software, exhaust...

Back to that lower numbers thing.. as I stated earlier... with the exception of supersprint.. and maybe eisenmann.. they are the only two that produce model specific exhausts... otherwise all other exhausts were made and tuned for E36 M3's.. but will work on non M3 E36's.. the problem is the M3 piping is larger.. so you will lose low end power... but if you're racing it really doesn't matter all that much does it.. since you'll be keeping the car up at around 3-4k (mid range) to maintain the good power...
 


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