*** OFF-ROAD USE ONLY** NOT CARB COMPLIANT ***
*** PLEASE CONTACT US FOR CURRENT INVENTORY/LEAD TIMES***
The PPE ISF Headers make a significant increase in flow compared to the stock manifolds. Tube lengths and diameters are increased coming together into a ported 4-1 parallel merge collector. Completely TIG welded construction with thick 16 gauge tubing for long lasting power gains.
The headers with no cats show a 38-46whp gain
The headers with high-flow cats show a 28-33whp gain
Fits with the stock dipstick tube.
- 3/8" thick head and outlet flanges
- Mandrel bent 16 gauge tubing
- 15 degree parallel merge collectors
- Porting at flanges
- Flat sanded head flanges
- Larger factory style gaskets
- Includes O2 sensor extensions, gaskets
- 1yr warranty
All products are RACE ONLY and manufactured and sold for installation on vehicles to be used solely for competition purposes, which, once installed, may never be used, or registered or licensed for use upon a public road or highway. If you install this part on your vehicle and use that vehicle on a public road or highway, you will be considered in violation of the Clean Air Act and personally subject to a civil penalty of $4,454.