Just installed the SuperCircuit 4-2-1 stainless steel header to a Mini Cooper S (R53) SuperCharged with John Cooper Works Tuning Kit.
The Mini Cooper S (R53) factory stock header/extractor with catalytic converter VS. the SuperCircuit stainless steel, large bore, de-cated extractor, for better and long lasting exhaust performance.
The SuperCircuit 4-2-1 extractor/header for Mini Cooper S (R53) is designed to be able to plug 'n play and is 100% compatible with the factory stock exhaust system.
For more information, please contact SuperCircuit Exhaust Pro Shop, Sunway Technology Park. Tel: 03 5632 2855 or join the SuperCircuit Exhaust Facebook for more updates and news.