I installed on my 2005 Aero along with the BSR exhaust. I LOVE IT. i highly recommend the 2 of them. subtle yet sporty deep tone. not really loud but it is definitely noticeable at idle and wide open. the turbo spools faster and not having the restrictive car ahs unleashed a few extra ponies. going to get a retune soon but love it so far.
only thing id say is i wish they would include new studs and nuts connecting the turbo to the down pipe. it would make for a seamless install.
Rating: [5 of 5 Stars!]