
APEXBUILT GESI High-Flow Catted Downpipes BMW M2 G87 G80 M3 & G82/G83 M4 S58
ApexBuilt G8X M3/M4 GESI HFC Downpipes offer... • No check engine light on factory-tuned vehicles. • 49 state emissions legal* • Industry-leading build quality. • Perfect fitment, guaranteed. • Drastically improved throttle response, quicker turbo spool, and an aggressive exhaust note versus OEM. • Estimated gains of 20-25+ wheel horsepower and 40-50+ 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. • EPA approved GESI GEN2 UHO metal-core 400cpsi 4.5" cats, rated for 500-800hp applications & road legal in 49 states. • Lifetime warranty.