GTM Performance Engineering: MHI Twin Turbo Kit Group Buy

Originally Posted by Mike@GTM

Done, thank you!



Yes, we will be posting the cutoff date in advance at the same time as the ETA.



Powder coating is an additional cost option we have available. It's an additional $240 for the gloss black powder coated piping.

The 18g's spool pretty quick as it is. That said, the 16g's will spool a little faster, but the big difference is in transient response. Since the 16g's are smaller turbos, they will be more responsive to throttle inputs than the 18g's.

I'm not sure how long those HFC's are going to last with a twin turbo kit since most HFC's for these cars aren't designed to handle the heat from forced induction. That said, you will be fine with either the stock cats or test pipes. Our Turn-Key kit comes with our tune and it will be setup for your particular combination of components.

We offer a standard one year warranty on our parts and workmanship.

As for payment, we will be announcing the date we will need payment as soon as we have determined when the kit will be ready to ship.