| DYNO PROVEN TO PROVIDE THE LARGEST HORSEPOWER GAINS FOR YOUR 03-04 MACH I MUSTANG
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 STRATEGY
In keeping with our goal of providing our customers with the best possible value, we have tested a large group of components specifically designed for the 4.6L 4V Mod Motor.
We have invested many hours evaluating and refining each of the 4.6L products on our chassis “dyno”, to ensure that we could develop as much power as possible, as safely as possible.
The site menu on the left side of this page, lists the clear winners when it comes to “performance vs. dollar” value. Please check back often as we are always developing new ways to create more horsepower.
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SLP STAINLESS STEEL POLISHED CERAMIC 1 3/4 HEADERS
Polished Ceramic 1-3/4' Full Length Header Kit
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SLP headers are built from computer mandrel-bent 1 3/4" primaries and venturi-style velocity collectors, 3/8" thick laser-cut flanges, and standard polished ceramic finish, these systems deliver un-matched quality at very affordable prices. PowerFlo-X Crossover Pipe also available to make installation a direct bolt-in procedure.
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SLP 1 3/4" Full Length Headers Feature:
- Mandrel bent 1 3/4" primary tubes
- Ceramic-coated to keep heat in
- Single Port Flanges no gasket falure
- Compatible with all OEM emissions
- Complete w/hardware, 02 harness extensions
- No additional fabrication required!
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| SLP Polished Ceramic 1-3/4' Long-Tube Header Kit |
| Application / Description |
SLP Stainless Long Tube Header Kit
99-04, Cobra / Mach-1
- Stainless Steel Polished Ceramic Full Length Headers
- Mandrel bent 1 3/4" 304 stainless steel primary
P/N SLPM30002 $ 879.99 |
High-temperature steel core/graphite header gasket
- 4.6L DOHC Heads, packaged 2 per set
P/N FMSM-9448-A464 $ 29.99 |
High-temperature steel core/graphite header gasket
- 4.6L SOHC Heads, packaged 2 per set
P/N FMSM-9448-A464 $ 29.99 |
Ford Oxygen Sensor Simulators, 1 pair
P/N MTB003020 $ 79.99 |
Ford Oxygen Sensor Extensions, 1 pair
P/N MTB-003322 $ 39.99 |
Click-On Price to Order |
SLP PowerFlo-X Crossover Pipe, Short Assembly
96-04 4.6 SOHC/DOHC Mustang w/Cats
NOTES: For use with SLP Long-Tube Headers. May not be compatible with other long-tube header designs. Not legal for use on pollution-controlled motor vehicles.
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The perfect complement to the SLP long-tube headers and are an excellent complement to their "Loud Mouth" cat-back systems, these X-pipes use free-flowing mandrel-bent tubing and a genuine X crossover to provide a significant horsepower increase over the restrictive stock cat pipes. SLP gave them a three-piece
design for versatility and easy installation; and you can get them with high-flow catalytic converters.
| SLP Short Tube 2½ X-Pipe w/Converters Kit |
| Application / Description |
SLP Short Tube 2½ X-Pipe w/Converters
99-04, Cobra / Mach-1 /GT
- Short Tube Design with Converters
P/N SLPM31034 $ 299.99 |
Ford Oxygen Sensor Simulators, 1 pair
P/N MTB003020 $ 79.99 |
Ford Oxygen Sensor Extensions, 1 pair
P/N MTB-003322 $ 39.99 |
Click-On Price to Order
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| DISCLAIMER:
This product is not legal for sale or use on any pollution controlled motor vehicles.
Legal in California only for racing vehicles which may never be used on U.S. highways. Not legal for sale or use in the state of California, nor in states which
have adopted California emission standards. |
SLP ModularPowerFlo-X Crossover Pipe Systems
X-Pipe Full Assembly, 1996-04 4.6 SOHC/DOHC Mustang w/Cats
NOTES: For use with any short-tube Header or stock manifolds. May not be compatible with other long-tube header designs. Not legal for use on pollution-controlled motor vehicles.
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SLP Performance Parts' X-Pipes are an excellent complement to their "Loud Mouth"
cat-back systems. They're built using free-flowing, mandrel-bent stainless-steel tubing and have
a true X-type crossover that provides a significant horsepower increase over the restrictive stock exhaust system.
SLP gave them a three-piece design for versatility and easy installation; and you can use them with or without high-flow catalytic converters, depending on your needs.
| SLP Long Tube 2½ X-Pipe w/Converters Kit |
| Application / Description |
SLP Long Tube 2½ X-Pipe w/Converters
99-04, Cobra / Mach-1 /GT
- Short Tube Design with Converters
P/N SLPM31032 $ 399.99 |
SLP Long Tube 2½ X-Pipe w/Converters
96-98, Cobra / GT
- Short Tube Design with Converters
P/N SLPM31030 $ 399.99 |
Ford Oxygen Sensor Simulators, 1 pair
P/N MTB003020 $ 79.99 |
Ford Oxygen Sensor Extensions, 1 pair
P/N MTB-003322 $ 39.99 |
Click-On Price to Order
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SLP Modular T-304 Stainless Steel Cat-Back Systems
Take complete control over your vehicle's sound and performance characteristics,
with a modular exhaust system from SLP.
SLP's exclusive design allows you to switch between three unique muffler types in a matter of minutes.
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SLP Performance modular cat-back exhaust systems are built from aircraft-quality T-304 stainless steel -- stainless inside and out,
not mild steel, not aluminum, not coated aluminum, not just wrapped with stainless on the outside for show.
Coating techniques, such as aluminizing, can somewhat prolong the life of mild steel, but coatings suffer at
the weld points. Comparing aluminized steel to T-304 stainless steel is like comparing gold-plated metal
to solid gold! T-304 stainless steel has the highest chromium content, making it the most resistant to corrosion, and therefore the most desirable
material for a long-lasting exhaust system. |
| Part # |
Year |
Application |
Price |
| SLPM31007 |
99-04
(GT/Mach-1) |
SLP "LOUD MOUTH "- LOUD MOUTH Mufflers
- Mandrel-bent 304 Stainless Steel Tubing
- 3.5" double-wall T-304 tips with electromarked SLP logo
- Lifetime Warranty
|
$ 399.99 |
| SLPM31007A |
99-04
(GT/Mach-1) |
SLP "LOUD MOUTH II"- LOUD MOUTH II Mufflers
- Mandrel-bent 304 Stainless Steel Tubing
- 3.5" double-wall T-304 tips with electromarked SLP logos
- Lifetime Warranty
|
$ 429.99 |
| SLPM31004 |
99-04
(GT/Mach-1) |
SLP "PowerFlo"- PowerFlo Mufflers
- Mandrel-bent 304 Stainless Steel Tubing
- 3.5" double-wall T-304 tips with electromarked SLP logos
- Lifetime Warranty
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$ 459.99 |
| SLPM31006 |
99-04
(Cobra only) |
SLP "LOUD MOUTH"- LOUD MOUTH Mufflers
- Mandrel-bent 304 Stainless Steel Tubing
- 3.5" double-wall T-304 tips with electromarked SLP logo
- Lifetime Warranty
|
$ 469.99 |
| SLPM31006A |
99-04
(Cobra only) |
SLP "LOUD MOUTH II"- LOUD MOUTH II Mufflers
- Mandrel-bent 304 Stainless Steel Tubing
- 3.5" double-wall T-304 tips with electromarked SLP logos
- Lifetime Warranty
|
$ 499.99 |
| SLPM31009 |
94-97
(Cobra/GT) |
SLP " LOUD MOUTH "- LOUD MOUTH Mufflers
- Mandrel-bent 304 Stainless Steel Tubing
- 3.5" double-wall T-304 tips with electromarked SLP logo
- Lifetime Warranty
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$ 429.99 |
| SLPM31009A |
94-97
(Cobra/GT) |
SLP "LOUD MOUTH II"- LOUD MOUTH II Mufflers
- Mandrel-bent 304 Stainless Steel Tubing
- 3.5" double-wall T-304 tips with electromarked SLP logos
- Lifetime Warranty
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$ 449.99 |
| SLPM31008 |
94-97
(Cobra/GT) |
SLP "PowerFlo"- PowerFlo Mufflers
- Mandrel-bent 304 Stainless Steel Tubing
- 3.5" double-wall T-304 tips with electromarked SLP logos
- Lifetime Warranty
|
$ 499.99 |
Click-On Price to Order
| Part # |
Year |
Application |
Price |
| SLP31062 |
94-04 |
SLP "Loud Mouth" Bullet-Type Mufflers, Ford Mustang GT/Cobra, (pair) |
$ 139.95 |
| SLP31064 |
94-04 |
SLP "Loud Mouth II" Bullet-Type Mufflers, Ford Mustang GT/Cobra, (pair) |
$ 185.95 |
| SLP31065 |
94-04 |
SLP " Power-Flo™" Mufflers, Ford Mustang GT/Cobra, (pair) |
$ 212.95 |
Click-On Price to Order
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Aluminum Coolant, Steering Tanks 
Line-Loc / Brake Control Kits 
Synthetic Motor Oil / Gear Fluids 
Stainless Steel Hood Pin Kits 
85mm MAF System & TUREFLOW Pipe
Gen. II FIPK® Cold-Air Kit
Cleaning / Filter Kits 
Filters
POLISHED Twin 62mm Throttle Body
Twin 62mm-65mm Throttle Body Kits
80/85mm MAF/Adaptor Kit/Hoses
Performance Disc Brake Kits
Stainless Steel Brake Line Kits 
PREDATOR Flash Tuner 
LIVEWIRE/X3 Flash Tuners
Special Forces Tuning Software 
CORTEX Flash Tuner 
160º/180º LOW TEMP T/Stats
Aluminum Driveshaft Kits
Gear Sets, 3.73/4.10 Ratio
LAKEWOOD Driveshaft Safety Loop Kit
Rear End Girdle and Stud kit 
DYNO TUNED POWER OPTIONS™
Stage I/II/III Camshafts/Spring
Stage I/II/III Camshafts/Spring
SCREEN Windage Tray (+12 hp) 
1-¾ Header Kits
Ceramic Mid-length Headers
STAINLESS X-Pipe w/wo Cats
X-Pipe Kits w/wo Cats
True X-Pipe with/without cats
American Thunder Exhaust Kits
D-Pic Performance Info Meters
Wideband air/fuel with data-logger
Full A-Pillar, Pods, Clusters 
DIRECT-FIRE 3V Modular SuperCoils
FORD Blaster Coil-on-Plug 
Copper / Iridium Spark Plugs 
™ Nitrous Oxide Systems (35-175 hp)
NITROUS OXIDE Kit (75-175 hp)
Boost Coolers 
Tubular K-Member / Coil-Over Kits
PRO-KIT / SPORTLINE Spring Kits
Sub-frame Connectors
Drag Radials / Drag Slicks
Mustang Performance Shifters 
PRO RIPPER -and- HAMMER Shifters
DFX Series Clutch Kits
Street-Strip Clutch/Flywheel Kits
Street-Strip Clutch/Flywheel Kits
TCI Super Streetfighter Converters
