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 RPM OUTLET.COMSTRATEGY

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.


If We Don't Have It - You Don't Want It !




MOTOBLUE™ SFI Approved H.O. Series Power Pulley Kit

What's an underdrive pulley?

An underdrive pulley is a replacement pulley that bolts up the same as stock, but has a different size (ratio) and material specifications intended to free up lost horsepower. By increasing the diameter of each accessory pulley and decreasing the size of the crank pulley, the speed at which the accessories are turning relative to engine RPM decreases.

Mustang Street Pulley Part Number MTB522328

Under drive pulleys do not add power to the engine, they free up the power that is normally wasted on overdriven accessories. The theory is that a larger pulley will drive the accessories slower thus reducing their parasitic horsepower loss. No more power total, but more power sent to the wheels. As an additional benefit, the reduction in wear (less usage) on the accessories due to the lower duty cycles can extend the life of these parts.

For example, the alternator, power steering, water pump and air compressor rob horsepower from the engine. By replacing factory-sized crank balancer/pulley and water pump drive pulley with a resized pulleys, the accessories are slowed, resulting in more horsepower available to the drive wheels.

MOTOBLUE™ H.O. Series pulleys will increase horsepower up to 12 RWHP, and increase mileage by 1 to 2 MPG. MOTOBLUE H.O Pulleys are manufactured from billet steel, exceeding factory quality and are the only Pulley system available on the market today that are SFI approved for all racing applications.

Installation: The kit includes all required components and hardware for a complete installation.

Tech Notes: Use of Harmonic Balancer Puller tool required for factory Harmonic Balancer removal.


Part # Year Engine Part Description Price
MTB-462328L 01½-04 4.6 2v
4.6 4v
    MOTOBLUE™ H.O. Series Power Pulley Kit
  • H.O. 25% SFI Approved Replacement Harmonic Balancer Pulley
  • 22% Short Style Water Pump Pulley
  • 8% Alternator Pulley
  • Retains Stock belt
$ 199.99
MTB-462328E 96-01½ 4.6 2v
4.6 4v
    MOTOBLUE™ H.O. Series Power Pulley Kit
  • H.O. 25% SFI Approved Replacement Harmonic Balancer Pulley
  • 26% Long Style Water Pump Pulley
  • 8% Alternator Pulley
  • Retains Stock belt
$ 199.99
MTB-462328 96-08 4.6L
5.4L
    MOTOBLUE™ 25% Underdrive Crank Pulley
  • 25% Underdrive SFI Approved
  • Replacement Harmonic Balancer Pulley (only)
$ 149.99
MTB460155 03-04 4.6 2v
4.6 4v
    MOTOBLUE™ 22% underdrive Pulley
  • CNC Billet Water Pump Pulley
  • Adds up to 4.2 HP
$ 49.99

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High Flow Meizer Electric Water Pump Upgrade Kit
Increase your horsepower up to 12 RWHP, and increase mileage by 1 to 2 MPG

Satin Anodized System Shown In This ImageRPM Outlet is proud to announce the introduction of an exciting new product, the Meziere extreme duty electric water pump! Yes, we said an electric water pump. This design has been in use since 1996, and has proven to be as reliable as the OEM water pump.

The Meziere extreme duty electric water pump replaces the factory high drag, horsepower robbing, factory water pump. The Meziere extreme duty electric water pump increases your horsepower up to 15 RWHP, and increase mileage by 1 to 2 MPG! This pump was designed with the daily street driven vehicle in mind, and it can also be used on fully equipped racecar. Installation of this pump is identical to the factory pump installation, and can be easily completed in less than 1 hour.

This is a direct replacement for the factory belt driven water pump. It comes equipped with a freewheeling billet idler pulley allowing the retention of the stock belt. It also provides an unbelievably constant water temperature under any condition.

adds up to 11.2 RWHP hp Chrome Plated System Shown In This Image



  • Direct Replacment *
  • Solid 12 Rear Wheel HP
  • Flows 55 Gallons per Minute
  • Designed for Daily Street Use
  • Flows 55 Gallons per Minute
  • Free-Wheeling Billet Idler
  • Retention of the stock belt
  • Stock Belt Routing
  • Easy 1 Hour Installation
  • Detailed Instructions Included
Part # Engine Application Price
   MEZ-WP346S 4.6L
5.4L
6.8L
    Meziere High Flow Electric Street Water Pump (satin finish)
  • CNC-machined from 6061-T6 billet aluminum
  • Flows 55 GPM, Dyno tests prove a gain of over 12 RWHP *
$ 329.95
   MEZ-WP346C 4.6L
5.4L
6.8L
    MeziereHigh Flow Electric Street Water Pump (chrome Finish)
  • CNC-machined from 6061-T6 billet aluminum
  • Flows 55 GPM, Dyno tests prove a gain of over 12 RWHP *
$ 409.95
   MEZ-WIK346 4.6L
5.4L
6.8L
    Electric Street Water Pump (Relay Kit)*
$ 39.95
   MTB-462328 4.6L
5.4L
6.8L
    MOTOBLUE™ 25% Underdrive Crank Pulley
  • 25% Underdrive SFI Approved
  • Replacement Harmonic Balancer Pulley (only)
$ 149.99
   ROY-01600 All
    Royal Purple Ice Super Coolant Additive
$ 10.95
   ZEX-82002 All
    Covered Toggle Switch
$ 26.99

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*Designed for use with an electric fan kit




MOTOBLUE™ CNC Billet Water Pump Pulley

 MotoBlue.com - Your performance parts Specialist

adds up to 4.2 RWHP hp Free Up Extra Horsepower!

Replace your factory high drag steel water pump pulley with a MOTOBLUE™ 22% under drive billet aluminum water pump pulley. The MOTOBLUE™ Water pump pulley is designed to free up extra horsepower by reducing the amount of water drag at high RPM’s, adds 4.2 HP and 6.1 Ft-Lb of torque. Installation time is 10 minuets, and is available for same day shipping.
Part # Year Engine Application Price
MTB460155 01-04 4.6 2v
4.6 4v
    MOTOBLUE™ 22% underdrive Pulley
  • CNC Billet Water Pump Pulley
  • Adds up to 4.2 HP
$ 49.99

*Designed for use with an electric fan kit


*** Works on short water pump design only

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Hypertech 160° / 180° Low-Temperature Thermostat

  • Increases Mass Flow Rate of Intake Air
  • Allows Engine to Cool Down to Lower Temperature than Factory Thermostats
  • Reduces Engine's Tendency to Detonate
  • Reduces Temperature of Both the Incoming Air/Fuel Mixture and Combustion Chamber Surface

A Hypertech PowerStat low-temp thermostat improves performance in two ways: first by increasing the mass flow rate of intake air, and second by reducing the engine's tendency to detonate.

From the laws of physics, cooler air is denser than warmer air. Since horsepower increases as the amount of air and fuel burned increases, cooler air (with more air molecules per cubic inch) makes more power. The PowerStat allows the engine to cool down to a lower temperature than the factory thermostat to make more power. At the drag races, water can be sprayed on the radiator between races to drop the temperature and improve performance. The PowerStat ensures that you leave the line at the same temperature on each run to give consistent maximum performance for bracket racing.

Detonation, usually producing audible pinging or even knocking sounds, refers to the spontaneous explosion of the unburned air/fuel mixture in the combustion chamber. Detonation abruptly and violently ends the normal combustion process, reduces power, and can severely damage the engine. A PowerStat reduces the temperature of both the incoming air/fuel mixture and the surfaces of the combustion chamber, greatly reducing the tendency to detonate. This allows the engine to safely develop more horsepower. PowerStats should always be used in an engine controlled by a computer to insure consistent performance.




For All Cars - Trucks With Manual Fans
For better heater output in cold weather driving, a 180 ° PowerStat can be substituted for any application that requires a 160° PowerStat.



Ford 160° PowerStats
Part # Year Engine Model Price
HYP1011 94-07 4.6/5.4 All Car - Truck $ 16.95
Ford 180° PowerStats
Part # Year Engine Model Price
HYP1025 94-07 4.6L 3V All Car - Truck $ 16.95

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