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considering its a greddy product it is obviously going to be of high quality, and after hearing my friends teg with i must say if the performance gains are as good as the evo or the PX i say get it
After having it on for awhile, it sounds better. At first it sounded hollow,raspy, and buzzy(like a cheap exhaust)-I was very dissapointed. Now it sounds like the good old SP! It only gets loud when you rev hard. I can't even hear it at cruising at 40mph, which good for me. I like the 5 year warranty too.