1st Gear Member
Join Date: Sep 2004
Location: Thousand Oaks, CA
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Thanks for the link Furious, I actually found that link a while back which is what has basically narrowed my search down to UUC and AA. I emailed UUC and Understeer.com for more info about the exhaust and they obvioulsy told me to go with their product, but they told me another interesting thing. They said they have dynoed their System U against the AA and that they are very similar in gains, but the System U is much louder and the AA is only moderately loud. I found this interesting bc if you watch any of the videos of the AA and then videos of the UUC it is pretty clear that the AA if just as loud if not louder. Plus, i've personally seen both exhaust and heard them in person and the AA is louder at lower RPMs and at Idle, but at WOT they are very similar but the AA is still a tad louder. Both cars had intake and and software, neither had straight pipes. I know companies try to push thier products, but that's just straight lying.
It's still a toss up to me. It seems this board favors the UUC and other Bimmer boards favor the AA. I'll let you guys know when I have come to a conclusion and why. So far, leaning towards UUC because of the 9 lbs weight difference.
<img src='http://memimage.cardomain.net/member_images/9/web/741000-741999/741934_9_full.jpg' border='0' alt='user posted image' />
JC Chip * Cosmos Racing CAI * UUC System U * UUC Underdrive Pulleys * Fan Delete * UUC Sachs Stage 4 Suspension * Sway Barbarians * Racing Dynamics Front strut bar * X-Brace * Front Camber Plates * UUC TME * BBS 18x8.5 * 235/40/18 Yokohama AVS Sport * F&R Zimmerman X-Drilled Rotors * SS Brake Lines * Rouge RSM w/enforcers * Clears all around * SilverStars * Pioneer Avic N-1 * Pioneer 6 Disc Changer * JL 450/4 and 1000/1 Amplifiers * 2 JL 12" W6V2 * Diamond Audio Hexs 6.5" in kick panel * MB Quart Premiums 4" in Rear * Infinity Kappa 3.5" in door * Batcap 400 * Optima Yellow Top