🚀 Doug's Headers D3336 Exhaust Header for Chevrolet Chevelle LS1/LS6 Review

Used to replace ls in Cutlass 71. The driver's side manifold requires repositioning of the brake proportional valve. Both are very close to the ground after installation. Overall very good quality and they will work for what I need.

Overall these headers are pretty good. The quality is high and they look great once installed. Doug's Headers, although no longer associated with Mr. Thorley, is still a respected manufacturer selling parts from the USA. Electrode gap is ok. All screws are accessible which is a big plus. A band clamp instead of the traditional 3 bolt connection to your exhaust system is the best solution to avoid leaks and has better ground clearance. Since my setup is a replacement LS manifold, the O2 sensor…

Used to replace ls in Saber 71. The distributor on the driver's side must move the proportional valve of the brake. Both are very close to the ground after installation. Overall very good quality and they will work for what I need.

Overall these manifolds are quite good. The quality is high and they look great once installed. Doug's Headers, although no longer associated with Mr. Thorley, is still a respected manufacturer selling parts from the USA. Electrode gap is ok. All screws are accessible which is a big plus. A band clamp instead of the traditional 3 bolt connection to your exhaust system is the best solution to avoid leaks and has better ground clearance. Since my setup is a replacement LS manifold, the O2 sensor…