APEXBUILT® BMW G87 M2, G80 M3, & G82/G83 M4 GESI HIGH-FLOW CATTED DOWNPIPES (S58, 2021+)
APEXBUILT® BMW G87 M2, G80 M3, & G82/G83 M4 GESI HIGH-FLOW CATTED DOWNPIPES (S58, 2021+)
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*FROM APEX BUILT*
ApexBuilt® G8X M2/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.
*PLEASE NOTE:
These downpipes will not be sold or shipped to the state of California. GESI 400cpsi cats are EPA approved, but not CARB approved – meaning they're street legal in all 49 states EXCEPT the state of California.
Read more about GESI cats: https://gsportbygesi.com/high-performance-catalytic-converters/g-sport-catalytic-converter-technology/
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![APEXBUILT® BMW G87 M2, G80 M3, & G82/G83 M4 GESI HIGH-FLOW CATTED DOWNPIPES (S58, 2021+)](http://tracybuilt.com/cdn/shop/files/Apex-built-g8x-s58-highflow-catted-downpipes-15.jpg?v=1691677373&width=1445)
![APEXBUILT® BMW G87 M2, G80 M3, & G82/G83 M4 GESI HIGH-FLOW CATTED DOWNPIPES (S58, 2021+)](http://tracybuilt.com/cdn/shop/files/Apex-built-g8x-s58-highflow-catted-downpipes-14.jpg?v=1691677203&width=1445)
![APEXBUILT® BMW G87 M2, G80 M3, & G82/G83 M4 GESI HIGH-FLOW CATTED DOWNPIPES (S58, 2021+)](http://tracybuilt.com/cdn/shop/files/Apex-built-g8x-s58-highflow-catted-downpipes-13.jpg?v=1691677159&width=1445)
![APEXBUILT® BMW G87 M2, G80 M3, & G82/G83 M4 GESI HIGH-FLOW CATTED DOWNPIPES (S58, 2021+)](http://tracybuilt.com/cdn/shop/files/Apex-built-g8x-s58-highflow-catted-downpipes-12.jpg?v=1691677149&width=1445)
![APEXBUILT® BMW G87 M2, G80 M3, & G82/G83 M4 GESI HIGH-FLOW CATTED DOWNPIPES (S58, 2021+)](http://tracybuilt.com/cdn/shop/files/Apex-built-g8x-s58-highflow-catted-downpipes-11.jpg?v=1691677124&width=1445)
![APEXBUILT® BMW G87 M2, G80 M3, & G82/G83 M4 GESI HIGH-FLOW CATTED DOWNPIPES (S58, 2021+)](http://tracybuilt.com/cdn/shop/files/Apex-built-g8x-s58-highflow-catted-downpipes-10.jpg?v=1691677116&width=1445)
![APEXBUILT® BMW G87 M2, G80 M3, & G82/G83 M4 GESI HIGH-FLOW CATTED DOWNPIPES (S58, 2021+)](http://tracybuilt.com/cdn/shop/files/Apex-built-g8x-s58-highflow-catted-downpipes-9.jpg?v=1691677105&width=1445)
![APEXBUILT® BMW G87 M2, G80 M3, & G82/G83 M4 GESI HIGH-FLOW CATTED DOWNPIPES (S58, 2021+)](http://tracybuilt.com/cdn/shop/files/Apex-built-g8x-s58-highflow-catted-downpipes-8.jpg?v=1691677091&width=1445)
![APEXBUILT® BMW G87 M2, G80 M3, & G82/G83 M4 GESI HIGH-FLOW CATTED DOWNPIPES (S58, 2021+)](http://tracybuilt.com/cdn/shop/files/Apex-built-g8x-s58-highflow-catted-downpipes-7.jpg?v=1691677081&width=1445)
![APEXBUILT® BMW G87 M2, G80 M3, & G82/G83 M4 GESI HIGH-FLOW CATTED DOWNPIPES (S58, 2021+)](http://tracybuilt.com/cdn/shop/files/Apex-built-g8x-s58-highflow-catted-downpipes-6.jpg?v=1691677073&width=1445)
![APEXBUILT® BMW G87 M2, G80 M3, & G82/G83 M4 GESI HIGH-FLOW CATTED DOWNPIPES (S58, 2021+)](http://tracybuilt.com/cdn/shop/files/Apex-built-g8x-s58-race-downpipes-5.jpg?v=1691676945&width=1445)