ScottD1983

Yes mate changed cat whole exhaust is new. Even without re-tune so much better on boost. But runs a little bit rougher I rand autotechnique in Ferntreegully. They recommend a re-tune minor changes and maybe a new boost controller due to the 4 inch pipe been know to spike now and again.

Hey Guys I Have a BA XR6 Turbo. . Only mods are strengthened diff and strengthened auto. Also an air box and custom tune running 9psi. I recently put a new exhaust on its 3.5 cat back and 4 inch dump pipe. Question is will this be a good exhaust for the set up I have and should I get a re tune quite new to cars so just wanting expert opinion on the matter Cheers