2024-2025
2015-2023
2010-2014
2005-2009
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Installation Time
(approx) a Day
Difficulty Level:
Mechanical expertise or professional installation required.
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American Racing Headers 1-3/4-Inch Catted Long Tube Headers with X-Pipe; Long System (15-17 Mustang GT)Find parts that fit my vehicle
Item 389166
$0.00
1 Reviews
2 Answers
Our Price
$2,199.49 kit
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Product Information
Features, Description, Reviews, Q&A, Specs & Installation
Features & Specs
- American Racing Headers Long System
- Increases Rear Wheel Horsepower and Torque
- Long Tube Header Design - 1-3/4"
- High-Flow Catalytic Converters
- X-Pipe Included - Eliminates Factory Resonator
- 3" Mandrel-Bent Tubing (Steps Down to 2.5")
- 304 Stainless Steel Construction
- Intended for Off-Road, Track Use Only
- Made in the USA
- Fits Left Hand Drive Models Only
- Fits 2015-2017 GT Mustangs with Factory or 2-1/4" Aftermarket Axle-Back
| Brand | American Racing Headers |
| Header Type | Headers & Mid-Pipe Kit |
| Header Primary Size | 1.50-1.75 Inch |
| Header Finish | Raw |
Description
More Horsepower and Torque. An American Racing Headers Catted 1-3/4" Long Tube Header and X-Pipe Long System is engineered to increase the power and performance of your 5.0L coyote S550 Mustang. This American Racing Header and X-Pipe combo will significantly improve your GT Mustangs exhaust flow, when compared to the restrictive stock manifolds and resonator Mid Pipe, for a measured increase in rear wheel horsepower and torque.
Race Car Growl. The included X-Pipe not only eliminates the factory resonator to help increase power, but it also adds a loud raspy, race car growl to the sound of your exhaust with its modern "X" crossover pipe design.
Quality Construction. American Racing Headers are manufactured in the USA from mandrel-bent 1-3/4" diameter 304 stainless steel tubing that merges into 3" collectors with scavenger spikes for superior exhaust flow. These long tube headers feature a one piece 3/8" header flange for additional strength, leak-free performance and an OEM style fit.
Required Upgrade. To realize the full power potential that these Long Tube Headers have to offer, AmericanMuscle highly recommends a custom tune with a Mustang Handheld Tuner to reprogram the vehicles computer (ECU) for proper operation.
Cut & Clamp Installation. American Racing Headers designed their 3" Long Systems to "step down" at the rear axle, which allows you to reuse your stock mufflers or the 2-1/4" aftermarket axle-back of your choice. Installation will require cutting and reusing the stock muffler assemblies and clamping them in place. Clamps and detailed instructions are provided.
Application. This American Racing Headers 1-3/4 x 3 in. Catted Long Tube Header with X-Pipe Long System is designed to fit both Fastback and Convertible 2015-2017 GT Mustangs equipped with the coyote 5.0L DOHC V8 engine. Requires the use of the factory or a 2-1/4" aftermarket axle-back exhaust for proper installation.
Technical Note. Long tube headers are not legal for use on pollution controlled motor vehicles; they are intended for off road use only.
Race Car Growl. The included X-Pipe not only eliminates the factory resonator to help increase power, but it also adds a loud raspy, race car growl to the sound of your exhaust with its modern "X" crossover pipe design.
Quality Construction. American Racing Headers are manufactured in the USA from mandrel-bent 1-3/4" diameter 304 stainless steel tubing that merges into 3" collectors with scavenger spikes for superior exhaust flow. These long tube headers feature a one piece 3/8" header flange for additional strength, leak-free performance and an OEM style fit.
Required Upgrade. To realize the full power potential that these Long Tube Headers have to offer, AmericanMuscle highly recommends a custom tune with a Mustang Handheld Tuner to reprogram the vehicles computer (ECU) for proper operation.
Cut & Clamp Installation. American Racing Headers designed their 3" Long Systems to "step down" at the rear axle, which allows you to reuse your stock mufflers or the 2-1/4" aftermarket axle-back of your choice. Installation will require cutting and reusing the stock muffler assemblies and clamping them in place. Clamps and detailed instructions are provided.
Application. This American Racing Headers 1-3/4 x 3 in. Catted Long Tube Header with X-Pipe Long System is designed to fit both Fastback and Convertible 2015-2017 GT Mustangs equipped with the coyote 5.0L DOHC V8 engine. Requires the use of the factory or a 2-1/4" aftermarket axle-back exhaust for proper installation.
Technical Note. Long tube headers are not legal for use on pollution controlled motor vehicles; they are intended for off road use only.
Please Note.These Headers are intended for left hand drive applications only.
Fitment:
DetailsAmerican Racing Headers MTC5-15134300LSWC
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) Driver side header
- (1) Passenger side header
- (2) Catted connection pipes
- (1) X-pipe
- (2) Intermediate pipes
- (2) Header gaskets
- (4) Oxygen sensor extension
- (8) Clamps
- (1) Bracket
- (16) Bolts
4.3
Customer Reviews (1)
Reviews of American Racing Headers Exhaust products have an average rating of 4.9 out of 5
Questions & Answers (2)
Will It Fit My Mustang
- GT - 15, 16, 17
These Headers are intended for left hand drive applications only.
