Ford Focus RS MK3 - De-Cat Front Pipe Section Mishimoto Stage 4 Piper BP320 have

Stage 4 Piper BP320 have a huge 3mm increase in lift and duration for Max Power applications

KW Variant 1 inox-line – Perfect Street Performance

Then we looked @ flow

ARP Fastenings used

the car looks wider and better

Ford Focus RS MK3 - De-Cat Front Pipe Section Mishimoto Stage 4 Piper BP320 haveCobra Sport performance exhausts enhance the sound, looks and quality of your vehicle giving you the ultimate driving experience. Our sports exhausts range is fully guaranteed to give you assurance of our quality. This MK3 Ford Focus RS performance exhaust front pipe with de cat is made in 3" 76. 2mm bore pipework and fits from the turbo to the centre section. This large bore downpipe with de cat sports exhaust is sold for motorsport and off road use