Improve engine efficiency allowing an increase performance by up to 20%
Remove exhaust gasses faster and more efficiently
Designed to bolt to engine head easily without incurring any power-robbing dents or dings
Originally developed for racing and designed to provide maximum increase in power for passing, hauling, towing, etc. Power improves gas economy...;relieves engine strain. Hedders have smooth mandrel bends and are flame tested for leaks. Step-by-step detailed instructions provided; however, if you experience installation difficulties call (565) 921-0404 and a knowledgeable Hedman sales engineer will assist you. Quality gaskets and mounting hardware included. Important: Refer to notes below when ordering. Manufacturer limited lifetime warranty. Check local emission laws before ordering. NOTE: Not legal for sale or use on California pollution-controlled motor vehicles. This product is intended for off-road or racing use only and is not intended or applicable for highway use.
Performance-geared (Painted) Hedders®. Replace inefficient heavy cast iron factory manifolds. Allow engine to breathe efficiently and produce more horsepower resulting in cooler engine temps and a better ride. Painted (black coating).
Hi-Tech Coating (HTC) Hedders®. Best thermal coating on the market-;guaranteed for 5 years! More durable than chrome-;won't chip, peel or turn blue. Thermal protection up to 1300°. Bonded strength factor exceeds 10,000 psi. Easy to maintain and no external rust-through. High-luster finish gives a quality appearance.
Elite™ Hedders®. Best choice for tough off-roading conditions. Made of extra-heavy-duty 14-gauge tubing and bulletproof 3/8" flanges which prevent warping and ensure leak-proof seals. Thermal coating provides best protection against intense heat.
Without smog injection or injection heads.
Modification to stock exhaust required to retain catalytic converter.
Not legal for sale or use in California on pollution-controlled motor vehicles.
Pair that collects 3 cylinders each.
Single hedder that collects all 6 cylinders into one collector.
Dog leg port only.
Fender wall exhaust exit.
Under chassis exit.
Includes parts necessary to retain emission devices-;50-state legal.
Replaces Tubular Exhaust Manifold System (TEMS).
Must use Trans-Dapt Engine Swap Kit (sold separately).
Shorty hedder (maximum ground clearance) under chassis exhaust exit.