ApexBuilt® BMW B58 Gen 1 Race Downpipe (2016-19)

From £449.00
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ApexBuilt® F2X/F3X B58 Catless Race Downpipes offer...

• Industry-leading build quality.

• Perfect fitment, guaranteed.

• Drastically improved throttle response, quicker turbo spool, and an aggressive exhaust note.

• Estimated gains of 25-30 wheel horsepower and 30-40+ TQ when installed on a vehicle that is not tuned.

• Estimated gains of 45+ HP and 60+ TQ over stock power levels when paired with an aftermarket ECU tune.

• TIG-welded T304 stainless steel construction, assembled by hand in Naples FL.

• Lifetime warranty.

Guaranteed fitment on the following vehicles*:
• 2016-2018 BMW F22/F23 M240i
• 2016-2018 BMW F30 340i
• 2016-2019 BMW F32/F33/F34 440i 
*xDrive models also supported


These these parts are for OFF ROAD / RACE USE ONLY. They are not 50 state legal. Any of our catless race downpipes WILL NOT be sold in, or shipped to, the state of California. We advise you to run a tune on your vehicle for best results.

 ApexBuilt® B58 Catless Race Downpipe + M Performance Exhaust – F30 340i:

 ApexBuilt® B58 Catless Race Downpipe + Stock Exhaust – F30 340i: