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
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.
1999, 2001, 2003, 2004 Details >>