THY-637Y-C / 1999-2004 Jeep Grand Cherokee WJ 4.7L Long Tube Headers w/ Y-pipe
THY-637Y-C / 1999-2004 Jeep Grand Cherokee WJ 4.7L Long Tube Headers w/ Y-pipe is backordered and will ship as soon as it is back in stock.
Couldn't load pickup availability
Care information
Care information
Display general product information or specific product information using metafields.
Delivery and Shipping
Delivery and Shipping
Description
Description
Long Tube Tri-Y Headers with Y-pipes
1999-04 Jeep Grand Cherokee WJ
4.7L V8
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: Slip-Fit
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. #: NOT LEGAL FOR STREET USE ON POLLUTION CONTROLLED VEHICLES
Warranty: Limited Lifetime to original purchaser
Notes: 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!
Fitment
Fitment
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.