PLM Power Driven H-Series 4-1 Drag Header H22 F20B RMF
Private Label Mfg. Power Driven RMF Drag H-Series header features a true 4-1 merge for equal exhaust flow. This one piece design delivers the best HP performance while still utilizing your factory OEM Catalytic converter.
PLM recommends using our test pipes for easier installation of H-Series headers. Recommended for swap cars with H22-Motors, this exhaust manifold was intended for regular H22 swaps and not H2Bs.
Modification will be needed to make this fit H2B setups, depending on the make of the kit.
A few percentage of H22 motors have a few different deck heights, part of the steel oil pan might need to be massaged for the header to fit properly. If your oil pan is aluminum, we do recommend swapping it out for a steel one.
- Brand new
- Made of 304 stainless steel
- One year limited warranty
- True 2.5" collector
- CNC machined manifold flanges
- Flange is .38" which is just about 3/8" thick
- 18G on the 304 S/S. - measured at .049" to .050"
- One piece design