Hi guys please help.
Just had the Fabspeed loud exhaust fitted with 100 cell cats to my TTX50 have anyone of you guys had this fitted without a remap did you feel any gains. As the car feels plenty loud but im not sure if it any faster lower down the gears but when its up and running this thing flies.

Seems like the turbos are taking longer to spool up.

Thanks for your help
Philo