Ford Focus RS MK3 - De-Cat Front Pipe Section Mishimoto which makes them incredibly lightweight

which makes them incredibly lightweight but are also exceptionally strong

Then we looked @ flow

and they leak

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

Ford Focus RS MK3 - De-Cat Front Pipe Section Mishimoto which makes them incredibly lightweightCobra 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