Hi i make custom stainless exhausts and the demo car for the business is a mk2 vr6 stage 2 supercharged with a 2. 5inch straight through exhausts just in the process of getting the ecu done so cant tell you what its running. will let you know how it goes. before fitting the charger we put the system on which includes a decat and it produced a noticable change in throttle response and torque. i would recomend putting on a 2.5 inch system but 3inch is just to big best suiting turbo cars. 2.25 inch is too restrictive for the charger. i would highly recomend a decat pipe. gofor 2.5 inch happy medu
