Long Tube Tri-Y Headers with Y-pipes
1999-04 Jeep Grand Cherokee WJ
4.7L V8
Part# THY-637Y-C

Header Style: 4:2:1 Tri-Y Headers 
Material: Steel
Finish: Silver Ceramic Coated
Weld Up: No
Primary Tube Diameter: 1-5/8"
Primary Tube Gauge: 14 Gauge
Collector Attachment: 3 Bolt Flange
Collector Diameter: 2-1/2"
Tuned: No
Flange Thickness: 3/8"
Bolts and/or Studs Included: Yes
Gaskets Included: Yes
Reducers Included: N/A
Y-Pipe (Crossover) Included: Yes
Y-Pipe Inlet Diameter: 2-1/2"
Y-Pipe Outlet Diameter: 3" or 2-1/2"
Catalytic Converter(s) Included: No
Quantity: Sold as a Complete Kit
CARB E.O. #: THIS PART IS NOT C.A.R.B. APPROVED, IT CANNOT BE SOLD OR SHIPPED TO ANY RESIDENT OR ADDRESSEE IN CALIFORNIA AND CANNOT BE INSTALLED ON ANY EMISSION CONTROLLED VEHICLE.
Warranty: Limited Lifetime to original purchaser

This complete header kit makes huge increases in the power output of your V8 Grand Cherokee. They are also fantastic option when replacing the crack-prone factory manifolds, rather than heading to your local dealership. The kit includes ceramic coated long tube tri-y headers and a complete performance y-pipe kit routing exhaust gases all the way to your exhaust system. Install these headers today and feel your vehicle's true power potential!