Hi, it's been a long time I've been on here and after some advice, I'm about to buy a 2004 STI that been mapped and running at a nice 360bhp, I have a complete 3" Nur Spec Exhaust to go on from the Turbo back de-Catted and no resignaitor, will I need the Map Tweeking for this? The exhaust that's on is a custom made one with no Cats.
Cheers
Karl

 

The nur spec will do your head in within a week!! I lasted two days when I brought my bug with one fitted.

 

Ha Ha no mate I love it, I had it on my classic for nearly six years, Loud and Proud

 

Going from a 3" straight through system to a different 3" system then it should be ok,wouldn't harm to get your AFR's checked tho.

 

Thanks for that, I will look into that