Also known as the 'combi valve'
Keep your engine running efficiently
From VIN 8D-W-007800, split is in the 1998 model year
This system will increase power, reduce weight, and provide a legendary exhaust note!
Requires a S4 Style Quad diffuser on non-S-line rear bumper or an S4 rear diffuser on S-line rear bumper.
This system will increase power, reduce weight, and provide a legendary exhaust note!
Requires a S4 Style Quad diffuser on non-S-line rear bumper or an S4 rear diffuser on S-line rear bumper.
This system will increase power, reduce weight, and provide a legendary exhaust note!
Requires a S4 Style Quad diffuser on non-S-line rear bumper or an S4 rear diffuser on S-line rear bumper.
Restore fuel mileage and clear codes
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For cylinders 1-3
Also known as the 'combi valve'
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Keep your emissions in check
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Left side
Fits the left and right side
2X Entries Into Our F80 M3 Sweepstakes
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Fits up to VIN 8D-W-180000 - Split is in the 1998 model year
Includes the necessary hardware and gaskets to install the catalytic converter
This product was last offered at the strikethrough price on
07-08-2026
Fits the left and right side
Fits up to VIN 8D-W-180000 - Split is in the 1998 model year
Keep your engine running efficiently
Keep your engine running efficiently