Rich, I have just had one fitted to my 94 M3. It is a lot louder than the standard BMW part but I would not say it is excessive. In general it only makes a lot of noise when you are accelerating, but when holding speed on the motorway the car is so well soundproofed you cant hear it.
Outside of the car maybe a different story, but that means letting someone else drive my car..... I don't think so...
Usually stainless steel might be a little thinner walled piping, but the steel (usually high quality 304) is stronger compared to the stock steel/iron so in overall mass, it will be lighter...
__________________ 1996 318i
5 Speed Manual
Alpine CDA-7895 Head Unit
12" Alpine Type-R, sealed box
Pioneer 400w amp for $20 at a yard sale (to replace my fried MRV-1507)
Infinity Kappa 4" 2-way speakers(rear)
Infinity Kappa 5.25" component speakers(front)
Debaffled airbox, K&N filter
Tracked Mud on carpets
Shampooed and cleaned carpets
Most stainless steel exhausts will save you about 25lb. Trust me, if you carry your stock exhaust, then a stainless steel one, you will notice a HUGE difference. I would get a UUC exhaust, I have one, it's the top rated, and it's awesome.
triflo is f'ing amazing .... throaty and light and sexy and ..... sexy www.bavauto.com
__________________ <span style='color:red'>- Conforti cold air intake
-Clear corners and tails
-Racing Dynamics stress bar
-UUC short shift kit
-Turnermotorsport Performance Chip
Soon to come - Zimmerman brakes, and suspension AND UMNITZA DDE IF I EVER GET THE GODDAMN MONEY </span>
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