I wont really be able to tell the difference the cat made to that tune as im getting injectors,fuel pump,actuator and retune done while its there

Well fair enough then. I suppose you would expect quite a bit more power then

I had a 3.5inch Metalcat cat installed yesterday and with the same tune I noticed that boost has risen 2.5-3psi just with that.So guys that do this id definately be getting the tune looked at asap.mines getting work done next friday so ill put it back to standard till then..

would that boost increase make that much trouble?? what about a stock car and would it effect warrenty???

If you can get to ferntree gully, Hillside Exhaust & Mechanical is the guys you wanna use.

I got a 3.5inch metalcat installed on my stock exhaust, cost was around the $150 mark,

896 Burwwod Hwy, FTG

9758 6444

Also after I had mine done on a few occasion's (after a spirited 1-2 gear thrash) it goes into limp mode

(im no way affiliated with Hillside)

Cheers Dalesy