Catback, Tune Needed?

[Simonr23]

I have an FG with cat and dump already done and tuned. I've recently had the standard Catback replaced with an xforce 3.5 system. I have a lot more bottom/mid power now.

Do I need to get it retuned? I'm assuming the car building boost better now. Will the car/Ecu do any necessary adjustments to avoid leaning out? Is that even possible with this single change?

Thanks.

[Swindog]

I would assume, the amount of research into my own car the last few months it will be ok.

It might be worthful while since you ll have dyno figures already, pay for a power run on the dyno and check your figure. Youll be able to tell from that if its worth a tune adjustment to suit the less back flow created.

If you had standard cat and dump pipe but did a cat back, you wouldn't need a tune.

Have had the turbo work done prior to replacing the cat and dump?