iNetForce

We all know how hard it is to get higher numbers with aftermarket mods on our cars; lets see what are your gains.
I tried looking for this topic but I couldnt find it, if it doesn't exist lets make a nice one.

Please post your cat-back system and the gain you've got from it.

1- cat-back
2- gain
3- other mods

Take #3 for other mods in case you dynoed with other mods.

Thanks.

S2Fire

I dynoed my T1R header back exhaust on MY04 and I gained 11whp. I never dyno my car with the exhaust alone.