Active Autowerke BMW N26 F3X M228i 328i 428i GESI Catted Downpipe (11-111)

Active Autowerke BMW N26 F3X M228i 328i 428i GESI Catted Downpipe (11-111)The Active Autowerke BMW N26 F3X M228i 328i 428i GESI Catted Downpipe (11 111) enhances exhaust flow for BMW's N26 engines in F Chassis 228i, 328i, and 428i models. It replaces the restrictive OEM downpipe with a high quality unit designed for improved turbo response and durability. 3. 5" diameter stainless steel piping for reduced exhaust restriction Includes a 4" ultra high flow GESI catalytic converter designed not to trigger a Check Engine Light

The Active Autowerke BMW N26 F3X M228i 328i 428i GESI Catted Downpipe (11-111) enhances exhaust flow for BMW's N26 engines in F-Chassis 228i, 328i, and 428i models. It replaces the restrictive OEM downpipe with a high-quality unit designed for improved turbo response and durability.

• 3.5" diameter stainless steel piping for reduced exhaust restriction
• Includes a 4" ultra high flow GESI catalytic converter designed not to trigger a Check Engine Light (CEL)
• Full 304 stainless steel construction including substrate, TIG welded for durability
• GESI HO-Series Gen 2 catalytic converter is EPA registered, OBD2 compliant (except California), and uses proprietary precious metal loading technology
• Rated for engines producing 350 to 500 hp, withstanding temperatures up to 1500°F
• Quicker turbo spool and improved power compared to stock downpipe
• Easy bolt-on installation requiring no cutting or welding
• Modular design supports future upgrades
• Covered by 5 year / 50,000 mile warranty on shell and tube ends, and 2 year / 25,000 mile warranty on catalytic core
• Made in Miami, Florida

Note: Federal law prohibits tampering with emissions control devices. This downpipe uses a GESI catalytic converter compliant with EPA standards for OBD2 vehicles except in California. It meets emissions requirements without sacrificing performance.