Had this Turbosmart plumb-back welded in yesterday. Glad the turk is gone but there's still a split second of comp surge when letting off the gas, then a nice quiet pssshhh.
mine is the older version too, I had it in 06, on the evo was nice and loud, is it the same in the MSP? bcuz I have 2RSs and its loudddd and I love it, but the turbosmart is sexier