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      12-12-2012, 07:09 PM   #24
cuiter23's Avatar

Drives: E90 328i ZSP
Join Date: Jul 2012
Location: Vancouver

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2007 BMW 328i  [3.00]
Originally Posted by Doc K View Post
When I did my muffler delete, I noticed more pull on my car. That stock exhaust is so restrictive. You're better off getting a muffler delete. The AA Exhaust just looks nice, IMO.
Originally Posted by Wrngway View Post
The AA Exhaust should have less drone now that folks are figuring out what's causing it with that system. It sounds like a slight modification to the hangers will elminate most of the drone around 2k rpm. The resonance chamber also works to reduce it.
Originally Posted by iczz View Post
AA exhaust is muffler delete with resonance chamber to reduce drone.

I think AA claims about 4-5 hp gain in the development stage, which is not bad for a system like this.

You will get more hp gain if you do 2nd cat delete or even primary cat delete.
Originally Posted by 335BBS View Post
I don't think anyone here would notice 4-5 hp.
Originally Posted by idrift4wd View Post
I highly doubt they are getting 4-5 hp anyways.

maybe 1 hp lol

if you car is faster by anychance....its because your saving weight.

600 dollars hahaha. You can get a muffler delete, a resonator, and new tips for less then HALF the price. a muffler shop can custom fabricate a cat-back system for that price.
Originally Posted by Kolyan2k View Post
0-1hp is probably correct
Originally Posted by mike-y View Post
or just get the AA tune instead for $500 and you'll actually make 10-15+ more hp. I'd rather have that than more noise.
Thanks for the responses guys. I am probably not going to do a muffler delete due to the fact that I dont really like the extremely deep hum that comes with a delete. Too muscle car sounding for me haha.

I'll look into the AA tune in the future. The next thing im going to do is to get my windows tinted!
2007 E90 328i - Titanium Metallic l 19" VMR V710 l H&R Trak+ Spacers l M-Sport Rear Bumper l Mtech Rear Lip Spoiler l Hamann Front Lip l Eibach Sportline l AA N52 Signature Exhaust l OEM Blacklines l MTEC V3 AE l 6000K HID l Nokya 7000K Fogs l MTEC License Plate LED l Interior LED l 15% Tint l BlackVue DR380G-HD + PMP