1996-1998 Chevy/GMC 4WD 2500/3500 pickups (including crew cabs & Suburbans): 396-502 Tube Size 1.75" O.D., Collector Size 2.50" O.D., Collector Length 3", Port Shape: Same As Port; CARB EO #D-164-5

Part Number: 2021HKR

These Hooker headers fit 1996-1998 Chevy/GMC 4WD 2500/3500 pickups (including crew cabs & Suburbans): 396-502 Tube Size 1.75" O.D., Collector Size 2.50" O.D., Collector Length 3", Port Shape: Same As Port; C.A.R.B. EO #D-164-5

Features and Benefits

• This is a 50-State Legal header (C.A.R.B. EO #D-164-5).
• Designed as a high-performance, direct fit replacement for factory exhaust manifolds
• Industry’s best welds for durability
• 3/8” machined flanges for a perfect seal
• Light weight & sturdy 16 gauge tubing
• Mandrel-bent tubing for smooth exhaust flow
• Tuned-length primary tubes for maximum exhaust scavenging and velocity
• All necessary hardware included for a complete installation
• Legal for sale and installation in California

Breaking in an engine with ceramic coated headers WILL result in damage to the coating and will VOID all warranties. Hooker recommends using cast iron exhaust manifolds or old headers during your engine break-in period to avoid damaging your coated damage. Please call Hooker tech service at 270-781-9741 for additional information regarding ceramic coated exhaust products. The use of header wraps can cause the header tubes to crack or rust due to excessive heat and moisture build-up. Hooker does not recommend the use of header wraps as this will void the warranty.