Sport 550 turbo posted by SIK300Z on June 24, 2015 at 09:59 PM
Message
to upgrade to the MSP exhaust manifolds. You can keep the stock exhaust manifolds with upgraded turbos, but everyone seems to feel there is an improvement with the MSP's. Go with AMS and you will be mercilessly eviscerated here. And with a history of good reason. Just don't do it.