I have the
Fabspeed test car as seen on their website, so far the car has had the complete milltek system, the complete
fabspeed system and just the cat back
fabspeed system. The milltek and
fabspeed complete systems have about the same horsepower, the milltek is louder. The
fabspeed system fits better and uses all the factory mounting hardware, the cats are much more reliable and dont throw any check engine lights. Currently im running just the cat back
fabspeed set up b/c it is not as loud for every day driving. If your going to use the car on the track go with the headers and cat back system together. The car will breath much better and you'll gain noticeable power. Using the headers alone with the stock mufflers, i've never tried but heres the issue. The
fabspeed headers eliminate the 1200 cell primary cats and replace them with 200 cell cats, the factory muffler and secondary cats, also 1200 cell would then remain, which reduces the effectiveness of the headers. If you have to pick either cat back or headers, go with
fabspeed cat back b/c then you'll still have the primary cats on factory headers flowing into the cat back system which is cat delete, this is what I have now. Other things to consider would be labor costs for install, if you do both cat back and headers together your loking at about 4 hours, if you do them seperatley your doubling you labor time, whether your doing it yourself or having it done it saves time if you can swing it. I'll be attending the
pca autox at meadowlands the 15th and the 22nd, so if youd like to hear it come see me there. Other wise the car is at my dealership called International Autosport, 261 Wanaque Avenue, Pompton Lakes, NJ, feel free to stop by anytime. Good Luck! and have fun with car. Rick Corsaro