We have installed the catless downpipe to the BMW 4 series (F32) 328i N20B20 engine with twin scroll turbo.
The BMW 428i with the N20B20 in-line 4 cylinder twin scroll turbo engine shown below.
The factory stock downpipe can be removed conveniently via the under carriage.
The factory stock donwpipe with a huge catalytic converter and the stainless steel catless downpipe. By removing the primary catalytic converter on the downpipe, the exhaust gas is able to flow better, hence significantly improving the torque and horsepower.
To purchase or for more information about the above SUPERCIRCUIT stainless steel catless downpipe made for the BMW 4-series 428i (F32/ F33 N20B20 engine), please visit us at SuperCircuit exhaust Pro Shop, SS13 Subang Jaya Industrial Estate. Tel: 03 5632 2855 or Send Us A Message using the form on the right of this page.
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