I just recently fitted the CTS exhaust. Its probably 20-30% louder on the outside but almost no difference from inside the car. Looks great and fitted up nicely. Note this is probably the most quiet aftermarket exhaust available for the GTI other than the OEM options, because the resonator and rear muffler are quite large. Some of the other brands run a smaller resonator (or no resonator) for more sound, but also probably more drone.
Some photos here if you are interested in looking:
My Mk7 GTI PP....turns out I cant resist the VAG.
CTS TURBO MK7/7.5 GTI 3″ CAT BACK EXHAUST
– JT MODS
Bookmarks