SLP Ceramic Long Tube Headers (03-04 Cobra, Mach 1)

SLP Ceramic Long Tube Headers (03-04 Cobra, Mach 1)
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OUR PRICE$899.99
SLP Mustang Exhaust Kits
Item # 23011
Market Price $999.99You Save 10% ($100.00)
AmericanMuscle no longer carries the SLP Ceramic Long Tube Headers (03-04 Cobra, Mach 1). Please check out 99-04 Mustang Long Tube Headers for an updated selection.

Product Features

  • Increase of up to 30 RWHP
  • Long Tube header design
  • Free flowing Mandrel-bent tubing
  • Aluminum ceramic coating
  • Made in the USA
  • Fits 2003-2004 SVT Cobra and Mach 1 Mustangs


Add SLP Shorty Mid Pipe
Total Price: $899.99
Dyno-proven RWHP Gains. Get the most power out of your DOHC 4.6L with a set of SLP Long Tube Headers. These SLP ceramic coated headers will replace your restrictive stock factory manifolds to improve your mustangs exhaust flow and increase your Pony's horsepower and torque. Increases of up to 30 RWHP have been seen when installed with a matching SLP shorty X-pipe.

Aluminum Ceramic Coating. SLP uses a durable Aluminum Ceramic Coating on its long tube headers to reduce under hood temperatures, increase horsepower, lengthen the headers life, and for it's outstanding good looks. Ceramic Coated headers will long out last both polished and chrome plated headers.

Made In The USA. Hand-crafted right here in the U.S.A from 1-3/4" mandrel bent 409 stainless steel tubing, these SLP Long Tube Mustang Exhaust headers feature venturi-style velocity collectors to optimize exhaust flow, resulting in a monster increase of horsepower.

Recommended Upgrade. To realize the full power potential that these Long Tube Headers have to offer, AmericanMuscle recommends a custom tune with either a SCT SF3 or SCT LiveWire Custom Tuner.

Application. These SLP Ceramic Long Tube Headers are designed to fit the 2003 to 2004 SVT Cobra and 2003 to 2004 Mach 1 Mustangs. SLP recommends using their SLP shorty X-Pipe for a perfect fit and the best performance gains possible. Fits both automatic and manual transmissions.

Technical notes. Not legal for use on pollution controlled motor vehicles; intended for off road use only. Convertible models may require modifications to factory K-member cross brace.

Header Specifications
Header Type: Long Tube Finish : Ceramic Coating
Type Mid Pipe Required: SLP Shorty Fitment: 2003-2004 Cobra and Mach 1 Mustangs

Installation Time:

(approx) a Day

Difficulty Level:

Mechanical expertise or professional installation required.

What's in the box?

Hardware included:
  • (2) Header gaskets
  • (16) M8-1.25 x 25mm Bolts
  • (2) 12" O2 Sensor Extension

What's in the box?

Hardware included:
  • (2) Header gaskets
  • (16) M8-1.25 x 25mm Bolts
  • (2) 12" O2 Sensor Extension
  • Cobra 99, 01, 03, 04
  • Mach 1 03, 04

About SLP

SLP Mustang Exhaust Kits
SLP Performance Parts is your #1 Source for late-model Mustang performance and appearance parts. Available products include stainless steel header packages, cross-over x-pipe assemblies, cat-back exhaust systems, performance-optimized programmers, custom-fitted brake-control packages, and high out-put superchargers. Appearance accessories include a universal hood scoop, rear quarter window louvers, and a rear black-out tail light panel. Best known for their Loud Mouth, Loud Mouth II and powerFlo Exhaust Systems, each system boosts its own unique tone and flow characteristics providing superior performance, bolt-on installation, and all backed by their limited lifetime warranty.