DOUG THORLEY Stepped 4:1 Long Tube Headers, 1-3/4" x 1-7/8" x 3" (1967-1969 Camaro & Firebird & 1968-1974 Nova LS)

These headers are the perfect kit to complete your LS motor swap into your Camaro or Nova. Backed by over 50 years of knowledge and experience, our headers are designed to outflow your stock exhaust manifolds by leaps and bounds. These headers will give your engine more horsepower and torque across the entire RPM range, no doubt about it! To make these headers last, we made them out of industry leading 14-gauge mild steel tubing with 3/8" thick flanges. Topping all of that off, all of our headers come beautifully ceramic coated to greatly reduce under-hood temperatures and protect the headers from the environment. All of this 100% American made, and backed by our lifetime warranty of course!

Header Style: 4:1 Stepped Long-Tube Header
Material: Steel
Finish: Silver Ceramic Coated
Weld Up: No
Primary Tube Diameter: 1-3/4" to 1-7/8"
Primary Tube Gauge: 16 Gauge
Collector Attachment: Slip-fit with Band Clamps
Collector Diameter: 3"
Tuned: No
Flange Thickness: 3/8"
Bolts and/or Studs Included: Yes
Gaskets Included: Yes
Reducers/Adapters Included: Yes
Y-Pipe (Crossover) Included: No
Catalytic Converter(s) Included: No
Quantity: Sold as a Pair
CARB E.O. #: N/A
Warranty: Limited Lifetime to original purchaser