Hello together you always read a lot in the various forums, what the exhaust systems at the CTR should give all the power! since I have a raceheader longer, it is only about the system from “Kat”! I drive a continuous pipe in connection with a BBK ESD! only this is not to be used in normal road traffic, is much too loud! therefore I have mounted the original MSD again! I have now found a clear power loss! the original exhaust system has also only about 47 or 48mm outer diameter! the other system (BBK) has also only about 54mm! also this is in my eyes too small! now I have seen the TSS (oh God; one may have me teren and springs) 2 possibly has very interesting systems. a ForceX system with 63.5mm here… and a stainless steel complete system with 70mm here… I will not buy it, since no MFK (Tüv) for the CH! I am really only concerned about the power output!