525 EFI (525 HP)

BIG HP GAINS FOR THE LEGENDARY “BLUE MOTOR”!

 ProCharger’s proven supercharger system for the Mercury Racing 525 EFI delivers 8 PSI of boost and a 55% increase in power. Featuring the M-1SC supercharger, this kit includes an amazing fuel system with twin pumps, dedicated surge tank and fuel lines, larger injectors, an air-to-water intercooler, and tune for the factory computer. The result is 800+ horsepower and a massive increase in torque across the entire rpm range. That power increase allows a bigger blade for big speed increases, and the increased torque allows for a massive improvement in planing time. 

YEARS DESCRIPTION POWER GAIN BOOST PART #
2005-2014 M-1SC Intercooled (14 Pin Coil on Plug) 50-60% 8 PSI 1MH222-NN*
2001-2004 M-1SC Intercooled (10 Pin Distributor ign.) 50-60% 8 PSI 1MH222-NN*
 *For part numbers, replace “NN” with the motor model year 

HERE ARE THE DETAILS

  • M-1SC head unit standard 
  • Boost level: 8 PSI 
  • Power level: 800+ HP 825 ft-lbs – 55%+ Increase 
  • Dedicated 8-rib drive system with an H.D. tensioner 
  • High flow air/water intercooler

 

  • Supercharger finish options: Satin (standard), Polish, Black or Blue 
  • Intercooler color options: Black (standard), Polish or Blue 
  • Tuning of factory computer to run on 91 or 93 octane fuel 
  • Fuel system: Twin high flow fuel pumps with a surge tank, dedicated fuel lines, boost sensitive regulator and fuel injectors 

OPTIONS

  • Marine Blue Finish M-1SC ProCharger (satin std.)
  • Polished or Black Finish M-1SC ProCharger (satin std.)
  • Marine Blue Finish Bracket & Tensioner (satin std.)
  • Polished or Black Finish Bracket & Tensioner (satin std.)
  • Polished Finish AW-324 Intercooler & Tubing** (black std.)  
  • Marine Blue Finish AW-324 Intercooler (black std.)

New to procharger?

ProCharger superchargers are absolutely the most powerful and reliable supercharger systems available. These intercooled supercharger systems will deliver the largest increase in horsepower and torque available from any supercharger system. Thanks to the extremely low charge air temperatures provided by superior technology, ProCharger superchargers also provide much better engine longevity by protecting your motor from detonation. These systems are designed with a fundamental understanding of the physics behind supercharging, and are engineered to the highest quality standards and 100% made in the USA. Click to learn more about ProCharger superchargers!

BOOST YOUR TOW RIG

Whether towing your boat to the favorite watering spot or towing a trailer to some national park destination, ProCharger has you covered when it comes to adding a lot more ponies under the hood to your truck/suv (and car too)!

FIND A DEALER NEAR YOU

Looking to make a purchase or a shop to install? We have a large group of dealers ready to serve you with your ProCharger needs. Click below to find a dealer near you!

Dealer Locator Map with Icons

BUILD & PRICE

Kits starting at $11.798. Pricing on these units vary by configuration. Configure your purchase now.

New pricing becomes effective 4/28/23. Order now!

Build and Price

GET INSPIRED – 527 FEATURES

SPEAK TO AN EXPERT

Click to contact our sales staff or email us if you need any help. We will be happy to assist you with any questions you may have.

Mon – Fri 8am – 5:30pm CST
Phone – (913) 338-2886
Sales Email – [email protected]

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EMISSIONS COMPLIANCE

ProCharger offers Executive Orders for Emissions Compliance (EO) from California Air Resources Board (CARB) for many of our most popular car, truck and SUV applications. If you live in California, we can only sell you products with EO certification. Check out our full list of EO offerings.