Hi guys,
I wanna decat my 650hp/880Nm 997.1TT (upgraded VTGs/headers/exhaust/997.2 Ics) it's fitted with 200cells actually, when I did it on my 560hp/820Nm 993TT the result was huge, will it be the same with the 997?

Thx for advices

P.

 

have no fear..you will wonder why you did not do it before now

 

Do it. Listen to Arone.

 

That's what I think with the 993TT

How was the gain on your 997? Sensible too? Any idea of hp/tq gain?

 

not sure of exact #'s but engine felt much freer...like it was happy not to have cats ...def some gains there with but dyno

 

Do it.. I did and I love every moment of it...

 

It's also 100% illegal
Just be careful, the few hp might be more of a pia than it's worth.

 

Thats what I would think (and would you really like that much noise?)

 

I'm waiting for the price of the catbypasses for my exhaust, I think I will do it.
On my 993TT, the guy who check the pollution every 2 years never notice anything... (but my 993TT is from 1997 and the norms were easier, ok)

 

I am also thinking about doing way w/the high-flo cats and going catless...and to do away with the exhaust as well and just do straight pipes. The louder, the better. I will most likely have to get my ECU reflashed...

 

I went with a set of these beauties from BBI in Huntington Beach CA to complement my BBI exhaust & headers & love it ,not to loud as there's still mufflers on there just no cats,in fact at idle it's very mild but get on it & it's a whole different story

 

I can attest the fact that his exhaust sounds flippin' mean.