Stage 3 Motorsports
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We are proud to offer SLP Mustang Exhaust kit and components. SLP sells high quality axle back muffler kits, headers, x pipes and cat back kits. If you have any questions about our SLP Performance Products please call us at 623-434-5277.

2004-07 F150 4.6/5.4 Super Cab 6.5 Bed/Super Crew 5.5 Bed "PowerFlo" Exhaust Kit
by SLPF31071
regular price: $850.00
our price: $769.95
save $80.05
SLP now offers an all-new PowerFlo catalyst-back exhaust system for your 2004 1/2-07 Ford F150. It offers up to 10 extra horsepower and 10 foot-pou...
2003-04 Mustang Cobra SLP 1-3/4" Long-Tube Headers - Coated
by SLP
our price: $889.95
From the leader in late-model exhaust technology comes the industrys most advanced long-tube headers for 2003-2004 Mustang Cobras and Mach Is. SLP...
2005-10 Mustang GT SLP Long Tube 1 3/4" Headers - Coated
by SLP
our price: $899.95
From the leader in late-model exhaust technology come the industry's most advanced long-tube headers for 2005-10 Mustang GT's. SLP's new headers e...
1998 Mustang GT/Cobra "Loud Mouth II" Exhaust Kit (modular)
by SLP
our price: $519.95
SLPs Mustang cat-backs have always been the best performing exhaust systems in the business. Now they are the most versatile, too! Using groundbre...
1999-04 Mustang GT/Mach 1 SLP "Power-Flow" Exhaust System (Modular)
by SLP
our price: $474.95
SLPs Mustang cat-backs have always been the best performing exhaust systems in the business. Now theyre the most versatile, too! Using groundbreak...
1999-04 Mustang Cobra SLP "Loud Mouth II" (modular)
by SLP
our price: $594.95
SLPs Cobra Loud Mouth has always been the best-performing cat-back exhaust in the business. Now its the most versatile, too! Using groundbreaking ...
1999-04 Mustang Cobra SLP "Loud Mouth" (modular)
by SLP
our price: $549.95
SLPs Cobra Loud Mouth has always been the best-performing cat-back exhaust in the business. Now its the most versatile, too! Using groundbreaking ...
1999-04 Mustang GT SLP "Loud Mouth" Exhaust System (Modular)
by SLP
our price: $472.99
SLPs Mustang LoudMouth has always been the best performing cat-back exhaust in the business. Now its the most versatile, too! Using groundbreaking ...
1999-04 Mustang GT SLP "Loud Mouth II" Exhaust System (Modular)
by SLP
our price: $494.99
SLPs Mustang LoudMouthII has always been the best performing cat-back exhaust in the business. Now its the most versatile, too! Using groundbreaki...
1994-97 Mustang GT/Cobra "Loud Mouth" Exhaust Kit (modular)
by SLP
our price: $524.99
SLPs Mustang Loud Mouth has always been the best performing cat-back exhaust in the business. Now its the most versatile, too! Using groundbreakin...
1994-97 Mustang GT/Cobra "Loud Mouth II" Exhaust Kit (modular)
by SLP
our price: $548.95
SLPs Mustang cat-backs have always been the best performing exhaust systems in the business. Now they are the most versatile, too! Using groundbrea...
1998 Mustang GT/Cobra "Loud Mouth" Exhaust Kit (modular)
by SLP
our price: $524.99
SLPs Mustang cat-backs have always been the best performing exhaust systems in the business. Now they are the most versatile, too! Using groundbrea...
2005-10 Mustang GT SLP "Powerflo" Axle Back Exhaust Kit w/ 2.5" Tips
by SLP
our price: $449.95
Give your 2005-10 GT race-proven performance and a powerful deep muscle-car sound to match, with a PowerFlo rear-axle back exhaust system from SLP...
2005-10 Mustang GT SLP "Loud Mouth" Axle Back Exhaust Kit
by SLP
our price: $349.95
Your 2005-10 GT packs a 300-horse thoroughbred of an engine. Why bottle it up with restrictive, wimpy-sounding stock mufflers? Unleash the stallion...
1986-93 Mustang LX/1993 Cobra Exhaust Kit "Loud Mouth" (Modular)
by SLP
our price: $524.99
SLPs Mustang Loud Mouth has always been the best-performing cat-back exhaust in the business. Now it's available for the 1986-93 Fox-Body Mustangs...
1986-93 Mustang GT Exhaust Kit "Loud Mouth" (Modular)
by SLP
our price: $525.99
SLPs Mustang Loud Mouth has always been the best-performing cat-back exhaust in the business. Now it's available for the 1986-93 Fox-Body Mustangs...
1999-04  Mustang GT/Cobra PowerFlo-X Crossover Pipe Full Assembly w/Cats
by SLP
our price: $439.95
The perfect complement to our "Loud Mouth" cat-back systems, these X-pipes use free-flowing mandrel-bent tubing and a genuine X crossover to provid...
1999-04  Mustang GT/Cobra PowerFlo-X Crossover Pipe Short Assembly w/Cats
by SLP PERFORMANCE
our price: $319.95
The perfect complement to our long-tube headers, these X-pipes use free-flowing mandrel-bent tubing and a genuine X crossover to provide a signific...
2005-09 Mustang GT SLP PowerFlo-X Crossover Pipe Full Assembly w/Cats
by SLP
regular price: $525.00
our price: $469.95
save $55.05
The perfect complement to our "Loud Mouth or "PowerFlo" axle-back exhaust systems, these PowerFlo-X Crossover Pipes use free-flowing mandrel-bent t...
2005-09 Mustang GT SLP PowerFlo-X Crossover Pipe w/Cats
by SLP
regular price: $400.00
our price: $349.95
save $50.05
The perfect complement to our long-tube headers, these PowerFlo- Crossover Pipes use free-flowing mandrel-bent stainless steel tubing and a genuine...
2007-08 Mustang GT500 SLP Performance Pac w/Loud Mouth Exhaust - 600HP
by SLP PERFORMANCE
regular price: $2,850.00
our price: $2,500.00
save $350.00
SLP has taken the guesswork out of upgrading your 2007 Mustang Shelby GT 500 with the 600HP PerformancePac from SLP Performance Parts. Each 600 hor...
2007-08 Mustang GT500 SLP Performance Pac w/PowerFlo Exhaust w/4" Tips - 600HP
by SLP
regular price: $2,850.00
our price: $2,500.00
save $350.00
SLP has taken the guesswork out of upgrading your 2007 Mustang Shelby GT 500 with the 600HP PerformancePac from SLP Performance Parts. Each 600 hor...
2005-10 Mustang GT SLP "Powerflo" Axle Back Exhaust Kit w/ 4" Tips
by SLP
our price: $439.95
Give your 2005-2010 GT race-proven performance and a powerful deep muscle-car sound to match, with a PowerFlo rear-axle back exhaust system from SL...
2005-10 Mustang V6 Pro-Flow Axle Back Exhaust Kit
by SLP
our price: $259.95
Give your 2005-'10 Mustang V6 race-proven performance and a powerful sound to match, with a PowerFlo rear-section exhaust system from SLP Performa...
1996-04 Mustang GT SLP 1-5/8" Long-Tube Headers - Coated
by SLP
our price: $819.95
From the leader in late-model exhaust technology comes the industry's most advanced long-tube headers for 4.6-liter SOHC Mustangs. SLPs Mustang he...
2005-10 Mustang GT/GT500 SLP Resonators - Pair
by SLP
our price: $139.99
Get maximum flexibility from your modular SLP cat-back with these "Shotgun" race resonators. Standard equipment on many of our Loud Mouthâ„¢ syste...
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