Originally Posted by slaby
how were the performance gains? it didnt reduce the low end hp/torque did it? that is my main concern. my friend has a focus that he rally's and when he installed his headers it brought down his low end but gave a good increase in top end.
On my 2.5L I had solid gains all across the board TQ and HP with Corksports cat back and MSDS header... Graph is attached below.
// DPtune ECU Flash // Magnaflow Exhaust // Takeda CAI // 17x7.5 RPF1's // TWM Big TypeR Shift Knob // TWM Full Replacement Short Shifter // SRPracing pedals // GT LED Tail Lights // Redline Tuning Hood QuickLIFT // MS3 front brakes // MZ5 rear brakes // MSDS Header//Sure Motorsports rear mount // Massive Speed BSD // coming soon Cosworth MZ1 Cams