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JBA 2.5 in. Power Pack Off-Road Full Exhaust System - Natural (99-04 GT)

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  • Item #23144
  • MPN# 6632SPCK-KIT

  • Market Price $1,385.99
  • You Save 9% ($126.00)
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  • Increases Horsepower and Torque
  • Free Flowing Mandrel-Bent 2.5" Tubing
  • Stainless Steel Construction
  • Natural Finish on Long Tube Headers
  • 3.5" Chromed Tips
  • Classic Muscle Car Rumble
  • Includes Long Tube Headers, Off-Road H-Pipe and Matching Catback
  • For Off-Road, Track Use Only
  • Fits 1999-2004 GT Mustangs
More Power. Now you can increase the horsepower and torque of your 4.6L powered Mustang with JBA's 2.5" Power Pack Off-Road Full Exhaust System for power you can feel throughout the entire RPM band. This JBA Power Pack Kit will greatly improve your Mustangs exhaust flow to increase your Pony's horsepower and torque.

Full Exhaust Kit. The JBA Power Pack Full Exhaust Kit is a complete exhaust system that includes a pair of natural finish Long Tube Headers, a matching 2.5" Off-Road Shorty H-pipe, and 2.5" Catback exhaust.

Natural Finish. The included JBA Headers feature a natural stainless steel finish, which provides an aggressive appearance to your engine bay. This is not a heat-resistant coating, AmericanMuscle recommends the use of Exhaust Heat Wrap for high performance applications.

Recommended Upgrade. To realize the full power potential that this JBA Power Pack Full Off-Road Exhaust has to offer, AmericanMuscle recommends a Bama custom tune with a Mustang Handheld Tuner to reprogram the vehicles computer (ECU) for proper operation.

Application. The JBA Power Pack Off-Road Full Exhaust System is specifically designed to bolt-up in stock location on any 1999 to 2004 GT Mustang equipped with the 16 valve SOHC modular 4.6L V8 engine.Technical notes. Not legal for use on pollution controlled motor vehicles; intended for off road use only.

Fitment: 1999 2000 2001 2002 2003 2004 Details

What's in the Box
  • (1) Driver Side Header
  • (1) Passenger Side Header
  • (1) H-pipe
  • (1) Right muffler assembly
  • (1) Left muffler assembly
  • (1) Right tailpipe assembly
  • (1) Left tailpipe assembly
Installation Info
Tech Specs
Header Specifications
Header Type: Long Tube Finish : Natural 409 Stainless steel
Type Mid Pipe Required: JBA Shorty Mid Pipe Fitment: 1999-2004 GT

Mid Pipe Specifications
Style Mid Pipe: Shorty "H" Type Headers Required: JBA Long Tube
Piping Material: Stainless Steel Piping Size: 2.5"
Catalytic Converter: "No" - Off road use only Fitment: 1999-2004 GT Mustangs

Catback Exhaust Specifications
Piping Material: Natural Stainless Steel Tip Material : Chromed Stainless Steel
Piping Size: 2.5" Tip Size: 3.5"
Muffler Type: Chambered Fitment: 1999-2004 GT Mustangs
Will it fit my Mustang?
  • GT - 99, 00, 01, 02, 03, 04
  • Bullitt - 01

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