Cats or Performance Exhaust?

[AFont101]

Hey guys, im new to this so help me out. I have an 09 135i, and i wanna make the car louder..I gotta say, i get pretty frusterated when i hear the loud agressive noise of all the m3's exhaust when they drive by me. I was considering getting High Flow Cats from this eurocharged company that do alot of work on beamers what do u think? And id b spening close to half a k..and i believe they said it adds about 60 hp to the wheels.

http://www.eurocharged.com/index.php...mart&Itemid=85

My other option is to get the performance exhaust from BMW, but i personally think its overaly expensive. I hear it only adds 3-5 hp?

help me out...thanks to all!

[SV Concepts II]

Hmm...save your money from high flow cats. DPs will yield significantly more gains.

Get an exhaust along with some DPs and you should be golden. Significant performance benefits along with a pretty loud sounding system.
DPs, go with ARDesign.

Exhaust check out AA/AFE

[ennislaw]

Originally Posted by AFont101

Hey guys, im new to this so help me out. I have an 09 135i, and i wanna make the car louder ... thanks to all!

It depends on what you want. Are you going for sound quality or high volume and hp gain? I just added a Meisterschaft Touring HP (axle-back) and although the sound is indeed louder, the quality is outstanding, more IMO what the 135i should sound like from the factory.

If you're looking to getting a quality sound with more volume than stock, that's one thing; if you're looking for really loud and hp gain, then you need downpipes, unrestricted mid-pipes and axle-back. This combo is loud. And there might be an issue with your warranty, assuming that's a concern.

pge

[bozola]

Post in the 135 section??

[AFont101]

Well im willing to spend a grand on anything..i really just dont know enough to get whats best for the car and my likes..I want my car to gain more horse power, and defenitly to sound louder..you dont think the high flow cats will accomplish this?