I recently went from a "Custom" Exhaust set up to a Greddy SP2 and I have to say that Greddy is the ****. My car is now super quiet, even with a test pipe. The car isnt raspy at all. The car also pulls hard as expletive at 5500+. If I were to rate it id give the exhaust a 10/10. Highly reccomended if you want performance and an almost stock sound.