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MERCURY RACING 525 EFI ENGINE UPGRADES – …

    https://boostpower.com/shop/alexiz-engines-kits/efi-custom-marine-engines/mercury-racing-525-efi-engine-upgrades/
    description. BOOSTPOWER USA MARINE OFFERS PARTS-SALES & SERVICE ON ALL HIGH PERFORMANCE MERCURY RACING ENGINE PACKAGES. CALL FOR MORE INFORMATION! 805-376-6077 M-F 9-5 PACIFIC TIME.

Stage 1 Upgrade for Mercury 525 EFI - CP Performance

    https://www.cpperformance.com/p-16631-stage-1-upgrade-for-mercury-525-efi.aspx
    Stage 1 Upgrade for Mercury 525 EFI Performance computer re-calibration and a Custom High flow Billet Flame Arrestor that increases the maximum power by more than 25 HP* and 30 pounds of torque*. This upgrade will not only improve overall top end power but it also increases the low end power for a decrease in on to plane time and a gain in acceleration you can feel.

Mercury 525 EFI Upgrades and Upgrading

    https://525efiupgrades.wordpress.com/
    These meticulously built 540 engines are sure to satisfy your horsepower cravings.We will rebuild your 502 MPI into a 540CI EFI with Mercury 525EFI fuel injection unit. All custom fuel mapping & tuning done in house on our dyno and then shipped to you complete with dyno sheet. Hand picked 502 Gen VI block bored to 4.500″

Mercury Engine Upgrade Packages - Teague Custommarine

    https://teaguecustommarine.com/engine-upgrade-packages
    Mercury 525EFI to TCM 850 EFI • 890 HP and 860 TQ on 91 octane! • 6 Month Warranty • 6200 RPM Redline, 509 cu.in, Whipple Supercharger and intercooler kit, lowered compression, cylinder head chamber and port blending, upgraded camshaft and valvetrain components, ECM calibration Mercury 600SCi / 700SCi to TCM 875 EFI Full Rebuild / Upgrade

Merc Racing 525 EFI MAGNUM Dyno-Boost Boat …

    https://www.magnumtuning.com/en/detail/dyno-boost-boat-performance-chip/merc-racing/525-efi
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CP Performance - EFI Upgrade Kits

    https://www.cpperformance.com/c-198-efi-upgrade-kits.aspx
    Stage 1 Upgrade for Mercury 525 EFI Performance computer re-calibration and a Custom High flow Billet Flame Arrestor that increases the maximum power by more than 25 HP* and 30 pounds of torque*. This upgrade will not only improve overall top end power but it also increases the low end power for a decrease in on to plane time and a gain in acceleration you can feel.

Mercury Racing 540 Replacing 525 EFI - boats.com

    https://www.boats.com/reviews/mercury-racing-540-replacing-525-efi/
    April 6, 2014. Since its introduction more than 10 years ago, the 525 EFI has been the workhorse of the Mercury Racing engine line. In addition to being the most popular “entry-level” engine for new high-performance powerboats—and most often they travel in pairs— the 525 EFI mill was the “spec” engine for a number of offshore racing classes, including Super Cat Lite …

Raylar Adding Upgrade Package for 525EFI - boats.com

    https://www.boats.com/reviews/raylar-adding-upgrade-package-for-525efi/
    Maintaining that high level of reliability was paramount for Ray Brody and his crew at Raylar when they developed their new upgrade package for the 525EFI. Priced at $14,930 and slated for release in August, the package reportedly raises the engine’s output to 675 hp. “We’re offering the kit on a ‘rework’ basis,” Brody explained.

Offshoreonly.com - Mercury Racing blue motors: 500EFI, 525 EFI, …

    https://www.offshoreonly.com/forums/general-q/242108-mercury-racing-blue-motors-500efi-525-efi-575-sci-pros-cons-maintenance-etc-print.html
    The rockers used in the new blue engines are Scorpion Endurance Marine Rockers, they list for around $400.00 merc price around $800.00. Anyway I'd personally skip the blue motor. Go to Young Performance, Wesco Racing, ect and have a great builder build your engine. It will cost you less and be a MUCH better engine.

Potter On Performance: Upgrading the Mercury Racing 500 EFI

    https://www.speedonthewater.com/potter-on-performance-upgrading-the-mercury-racing-500-efi/
    The most popular option has been to upgrade this engine to a 540-cubic-inch, 625-hp naturally aspirated package. Of course, there are other options including supercharging, which can make as much as 800 hp, but you need to be aware that the Bravo drive is always the weak link in the equation.

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