I'm looking to purchase a better flowing muffler than my stock muffler & maybe somebody here has some experience with this topic! I have 3 in mind,
Borla,
http://www.bimmerperformancestore.co...ust-system.htm
Supersprint,
http://www.turnermotorsport.com/html...DUCT_ID=783606
& Scorpion.
From England, Scorpion stainless steel performance exhaust systems have been sought after by tuners the world over. Now these free-flow, stainless steel systems are available in the U.S. from Bavarian Autosport! They have been engineered to deliver a horsepower boost yet not be quite as loud as other free-flow systems. And they're built to last using the best 304 stainless steel. - TUV certified.
Part Number Description Price Qty.
197 BM45 Scorpion Exhaust - 135mm x 75mm oval
$499.95