what should have been a seemingly easy job sure did drag out longer (but don't they
I took my time with changing the exhaust so I would make sure I did it right. The job is really straightforward with the help of LLTek's instructions. Instead of doing this on a lift like I should have, I couldn't wait, so when I got home Friday when it arrived I jacked the car up and did it on jack stands. The removal of the A4 exhaust is easy, but 2 people should be there as the actual exhaust is huge and in one giant piece. Installation of the new one is a one person operation though.
Just be sure to
follow LLTek's instruction step by step to get the alignment of the exhaust correct.
The new exhaust has a diameter of 2.5" which is bit bigger than stock at
2.25". Pay extra attention to where the exhaust passes underneath the rear
differential. If you can't slide your pinky between the pipe and the differential,
you probably have it too close and it WILL bang against the differential. I had that
problem at first, but it turned out to be a slight manufacturing defect in the placement
of the exhaust hanger. It was easily rectified though with some advice over the
phone with the LLTek guys. The other thing you have to watch for is when you go to
install the Y pipe. When the slide the exhaust clamps back on the stock pipe, make
sure you don't let them go over the dimple on each pipe. If you tighten the
clamp over them, the clamp will leak slightly.
The exhaust is a little bit louder than stock but not too noisy. I would say it is a bit louder than a stock M3 exhaust. I wanted an exhaust that was more free flowing but not to loud. I listened to the 2nd generation Brullen exhaust courtesy of Kurt Williams before I purchased this. The exhaust I received is the 3rd generation which offers a larger resonator and better fit over the 2nd generation. At idle, it is hardly noticeable as far as noise level. It quiets down a lot at highway speed as well. It's at it's noisiest under full acceleration. I haven't heard the Stebro exhaust, but I understand that is another excellent cat back exhaust for the 2.8 engine. The Brullen and Stebro both offer lifetime replacement for rust, etc. The Brullen is fashioned from stainless steel.
Check out LLTek's website, www.lltek.com, for more info regarding the
Brullen exhaust and other Audi upgrades.