GrantDuncan

I am wondering if I could make my FG XR6 turbo sound better by removing the centre muffler? Would this harm the engine or performance?

So why would the sound change? The guys who did the performance tune say it is performing fine and the mechanic at Ford said he had never noticed the Phsssst sound in an XR6T. Odd although mine is a 6 speed manual and he may have only encountered autos.

Yes it does make that nid of noise. Is that normal? I forgor to mention it has been flash/dyno tuned so is over 280kw.

Ford recently put a new ECU in my XR6T as there was a fault with the original computer. Prior to that the turbo blow off valve made a distinct sneeze coming off high revs. It no longer does this. Has anyone else exprienced this or explain what might have changed?