| DYNO PROVEN TO PROVIDE THE LARGEST HORSEPOWER GAINS FOR THE 05-08 MUSTANG 4.0L
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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 4.0L V6 Mustang.
We have invested many hours evaluating and refining each of the 4.0L V6 Mustang products on our MD 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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RPM Outlet is proud to announce the introduction of Our Dyno Tuned Options™ For the 05-08 4.0L v6 MUSTANG

Option A
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Option B: - STAGE II, BIG AIR / TUNER KIT (option revision date 04/13/08)
UPGRADE OPTION :
*-add $150.00 for LIVEWIRE
Featuring Your Choice of Intake Systems:
TRUEFLOW Cold-Air Kit
>>>>>-OR-
S&B FILTERS 8-LAYER FILTER Performance Intake Kit
*UPGRADE OPTION:
Add $59.00 for: Your choice of Throttle-Body Spacers
Dyno Proven Gains Of Up To: 26+ hp and 21+ lb-ft Torque Increase!
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Part# RPM-4046-B priced as low as
Click-On Price to Order Or View Optons | $ 499.99
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OPTION C : THE DRAG-LAUNCH KIT (option revision date 05/18/08)
Featuring:
Eibach Drag-Launch Spring Kit
LAKEWOOD Adj. Lower Control Arm kits
LAKEWOOD Adj. Upper Control Arm kit
LAKEWOOD Adjustable Panhard Bar Kit
UPGRADE OPTION :
*-add $120.00 for Rear End Girdle
Dyno Proven Gains Of Up To: --+ hp and --+ lb-ft Torque Increase!
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Part# RPM-5461--C priced as low as
Click-On Price to Order | $ 469.99
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Pypes True-Dual System w/ Street-legal X-pipe 05-08 Ford Mustang 4.0L V6 (allows V6 owners to convert to a 50 state smog legal true-dual exhaust system)
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100% Stainless True-Dual Converter Back Exhaust!
True-Dual stainless steel 2-½ inch converter back exhaust with 4-inch polished stainless steel tips
Now you can have the look and sound of the V-8 without the expensive muffler shop or over prices exhaust manufactures.
This is with out a doubt the most IMPRESSIVE sounding & highest HP Converter Back system available on the Market Today!! Pypes Stainless True-Dual 2-½ inch converter back consists of their 2-½ emissions legal x-pipe with their 2-½ mandrel bent tail pipes, 4-inch polished stainless steel tips and all needed OEM quality clamps, hangers required to do a complete installation.
This kit is a direct replacement that converts your V6 mustang converter-back into an emissions legal True-Dual x-pipe, converter back exhaust system!
Installation of this kit is quite simple includes all of the special parts needed and should take no more than 2 hours to complete.
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Features:
- Complete kit with detail installation instructions
- Stainless mandrel-bent over axle pipe
- Stainless X-Crossover pipe
- 4" polished stainless steel tips
- Pypes Street-PRO/Violator mufflers
- Clamps, hangers and hardware
- Slip-fit for ease of installation
- 50 state smog legal
- Everything needed to do the job!
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| Part # |
Year |
Part Description |
Price |
| PYP-SFM68 |
05-08 |
Pypes True-Dual System - Stainless Steel
Street-PRO series mufflers (mild tone)- Stainless Steel Street-legal X-pipe, Mandrel-bent over-axle pipes
- 4" polished stainless steel tips, clamps, hangers and hardware
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$ 339.99 |
| PYP-SFM68V |
05-08 |
Pypes True-Dual System - Stainless Steel
Violator series mufflers (agressive tone)- Stainless Steel Street-legal X-pipe, Mandrel-bent over-axle pipes
- 4" polished stainless steel tips, clamps, hangers and hardware
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$ 359.99 |
| PYP-SFM68VS |
05-08 |
Pypes True-Dual System T-304 Polished Stainless Steel - T-304 Polished Stainless Violator series mufflers (agressive tone)
- Stainless Steel Street-legal X-pipe, Mandrel-bent over-axle pipes
- 4" polished stainless steel tips, clamps, hangers and hardware
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$ 399.99 |
Click-On Price to Order
NOTE:*All Pypes SFM68 Series Exhaust Kits have a $29.95 U.P.S. Heavy/Oversize package shipping fee.
FREE U.P.S. GROUND SHIPPING - * Continental U.S. Only
* Note : 07½ models require #PYP-HFM-60 hanger kit.
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