Speed Engineering 1-7/8" Longtube Headers — 2022–2023 Cadillac CT5-V Blackwing | LT4 6.2L | 25-1046 ETA 8/28/26 injen 2004 Chevrolet Avalanche (2WD/4WD) —

2004 Chevrolet Avalanche (2WD/4WD) — 6

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Quickfist Mounts and Other Accessories

This 3" diameter into dual 2

Speed Engineering 1-7/8" Longtube Headers — 2022–2023 Cadillac CT5-V Blackwing | LT4 6.2L | 25-1046 ETA 8/28/26 injen 2004 Chevrolet Avalanche (2WD/4WD) —Looking to free up exhaust flow on your CT5 V Blackwing with a 1 7 8" tube option? Speed Engineering's 1 7 8" longtube headers are mandrel bent, TIG welded, and CNC machined from 304 natural stainless steel for maximum exhaust flow and over 25 rear wheel horsepower over stock. These are headers only this is not a direct bolt on installation. Fabrication of connection pipes is required for proper fitment on the CT5 V Blackwing chassis, and O sensor