CTS Turbo is proud to announce a catless downpipe for F-series BWM 4 cylinder N20 engines. \n \nBy removing the factory catalytic converter, you will free up exhaust flow and thus increase power and sound of the engine. Faster turbo spool and less backpressure means the car will feel more responsive and more fun to drive. \n \nProper tuning by Bootmod3 must be used to remove CEL and ensure proper operation. \n \nFeatures: \n

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• CNC machined flange and direct-fit bracket
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• Fully TIG welded stainless steel construction
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• 25-35HP increase in power with stage 2 tune (octane dependent)
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• Aggressive sound
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\nThis part is for off-road race use only! Not for N26 engines. Check the sticker under the hood; you have N20 engine it will say ULEV.  If it is an N26 engine, it will say SULEV. \n \nFitment - check the downpipe flange on the vehicle: \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n

Make	Chassis	Model	Engine
BMW	F22	228i	N20 2.0L
BMW	F22	228i xDrive	N20 2.0L
BMW	F23	228i	N20 2.0L
BMW	F23	228i xDrive	N20 2.0L
BMW	F30	320i	N20 2.0L
BMW	F30	320i xDrive	N20 2.0L
BMW	F30	328i	N20 2.0L
BMW	F30	328i xDrive	N20 2.0L
BMW	F31	328i xDrive	N20 2.0L
BMW	F32	428i	N20 2.0L
BMW	F32	428i xDrive	N20 2.0L
BMW	F33	428i	N20 2.0L
BMW	F33	428i xDrive	N20 2.0L
BMW	F34	328i xDrive	N20 2.0L
BMW	F36	428i	N20 2.0L
BMW	F36	428i xDrive	N20 2.0L
BMW	F10	528i	N20 2.0L
BMW	F10	528i xDrive	N20 2.0L

\nStage 2 software is required to avoid check engine light.