Finally bought an exhaust (greddy rs) and took it back to get it re-tuned. It put down 432.5hp 357.9ft lbs @ 10psi on my higher tune with a little 100oct. My injectors and maf got maxed out so hopefully I'll be able to do some upgrading this summer.

 

Sounds just like my Megan rs exhaust. I'm guessing they knocked off greddy lol. Sounds good. Nice numbers. Get some flybys

 

what were numbers before exhaust?

 

Like 402hp & 326tq. I was pretty happy from the gains

 

Was this with the stock GTM tune?

 

No, the timing is held back on the stock tune. I think it only made like 345hp or something.