2024-2025
2015-2023
2010-2014
2005-2009
1999-2004
1994-1998
1979-1993
Installation Time
(approx) 2 Hours
Difficulty Level:
Light to Moderate mechanical skill required.
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Pypes Catted X-Pipe (99-04 Mustang GT)Find parts that fit my vehicle
Item 408633
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39 Reviews
Our Price
$754.75 each
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Product Information
Features, Description, Reviews, Q&A, Specs & Installation
Features & Specs
- Balance Out Exhaust Gases for More Power
- Raspy Race Car Growl
- Pypes Modular Construction
- High-Flow Catalytic Converters Included
- 2.50-Inch 409 Stainless Steel Tubing
- NOT CARB Certified
- 2004 Model Year Requires O2 Sensor Extensions
- Fits 1999-2004 GT Mustangs
| Brand | Pypes |
| Exhaust Pipe Type | X-Pipe |
| Exhaust Pipe Material | Stainless Steel |
| Fits Long Tube Headers | N/A |
Description
Balances Exhaust Gases. The Pypes Catted X-Pipe is excellent when it comes to balancing out the gas pressures in your exhaust system. This Pypes X-Pipe creates more power and torque than a traditional H-pipe. Why? Because the exiting exhaust pulses are merged at the "X", resulting in less exhaust back pressure for more power.
Race Car Growl. This free flowing Pypes X-Pipe for the 1999-2004 GTs not only increases power, but it also adds a raspy, race car growl to the sound of your exhaust with its modern "X" crossover pipe design.
Modular Construction. Pypes' unique 3-piece modular construction makes it quick and easy to add or remove catalytic converters to your exhaust system in just minutes, depending on your driving needs.
Durable, Stainless Steel Construction. Pypes uses sturdy, 16-gauge, 409 stainless steel, mandrel-bent, 2.5-inch tubing for improved exhaust flow and features welded reinforcement plates for additional strength. The included High flow catalytic converters far outperform the restrictive factory cats to provide a significant increase in horsepower and torque.
Not CARB Certified. This X-Pipe is not CARB certified, therefore it is not legal for use in California or other states adopting California emission standards.
Application. This Pypes Catted X-Pipe is designed as a direct bolt-on for the 1999-2004 4.6L Ford Mustang GTs with either aftermarket short tube headers or the factory manifolds and a dual catback exhaust installed.
Application Note. For the 2004 Model Year the O2 Sensors are relocated. These vehicles will require the use of 24-Inch O2 Sensor Plug-In Extended Wires.
Race Car Growl. This free flowing Pypes X-Pipe for the 1999-2004 GTs not only increases power, but it also adds a raspy, race car growl to the sound of your exhaust with its modern "X" crossover pipe design.
Modular Construction. Pypes' unique 3-piece modular construction makes it quick and easy to add or remove catalytic converters to your exhaust system in just minutes, depending on your driving needs.
Durable, Stainless Steel Construction. Pypes uses sturdy, 16-gauge, 409 stainless steel, mandrel-bent, 2.5-inch tubing for improved exhaust flow and features welded reinforcement plates for additional strength. The included High flow catalytic converters far outperform the restrictive factory cats to provide a significant increase in horsepower and torque.
Not CARB Certified. This X-Pipe is not CARB certified, therefore it is not legal for use in California or other states adopting California emission standards.
Application. This Pypes Catted X-Pipe is designed as a direct bolt-on for the 1999-2004 4.6L Ford Mustang GTs with either aftermarket short tube headers or the factory manifolds and a dual catback exhaust installed.
Application Note. For the 2004 Model Year the O2 Sensors are relocated. These vehicles will require the use of 24-Inch O2 Sensor Plug-In Extended Wires.
Fitment:
- 1999 Ford Mustang
- 2000 Ford Mustang
- 2001 Ford Mustang
- 2002 Ford Mustang
- 2003 Ford Mustang
- 2004 Ford Mustang
Pypes XFM36
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation & What's in the Box
Installation Info
What's in the Box
- (1) X-Pipe Assembly
- (2) Catalytic Converters
- Clamps
4.8
Customer Reviews (39)
Questions & Answers
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Will It Fit My Mustang
- Bullitt - 01
- GT - 99, 00, 01, 02, 03, 04
