Today, we did bit mod for SUZUKI.......................not for SWIFT.............this motor bike...600cc engine....4 into 1 exhaust mani from factory but.......
This valve is controlling noise and emission?? And after this valve, big catalytic converter is blocking ??before main muffler!! Anyway try to make some improvement..... Try to make straight pipe and remove this valve...............................This guy found You Tube video how to remove valve........