Manifold Header for Chevy LS1 LSX SWAP 350 Eng Shorty Stainless Block Hugger

Exhaust Header Super Comp. Block Hugger Header Exhaust Header Super Competition Block Hugger Steel Chevy Small Block LS1 header Product Description: 100% Brand New Items, Never Used Or Installed Stainless steel 304 Primary Tube Diameter: 1 5/8" (41.3mm) Collector Attachment: 3-bolt flange Collector Diameter: 2.25" (57.15mm) Primary Tube Gauge: 16 Gauge Flange Thickness: 3/8" (9.5mm) Professional Installation is Highly Recommended No Instruction Included