ApexBuilt® BMW F & G-Chassis N63TU Catless Race Downpipes (2011-18)
ApexBuilt® F & G-Chassis N63/N63TU 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.