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2015-17 Mustang GT Brenspeed Stage 3 GEN 6 880HP Supercharger Package

Product Reviews for 2015-17 Mustang GT Brenspeed Stage 3 GEN 6 880HP Supercharger Package

Description
Reviews

Brenspeed STG 3 – 880 HP Supercharger Package

The Brenspeed STG 3 package is built for S550 Mustang GT owners who want extreme, repeatable horsepower backed by proven engineering and the reliability upgrades required to support it. Centered around the Whipple Gen 6 3.0L supercharger system, this package delivers up to 880 horsepower with the instant throttle response, broad torque curve, and premium drivability that Whipple systems are known for.

This is not an entry level blower kit. STG 3 is a purpose built, high boost combination designed for customers who want serious street performance with the supporting components needed to keep the 5.0L Coyote safe under demanding conditions.

What’s Included

•    Whipple Gen 6 3.0L Supercharger System (Stage 2 Base)
•    Brenspeed High Boost Pulley (12–14 psi)
•    Fuel Pump Booster
•    Plug and Play Harness

This combination increases airflow, boost pressure, and overall power capability far beyond the standard Stage 2 configuration, delivering a Mustang that pulls hard from the hit and continues accelerating with authority all the way through the RPM range.

Recommended Supporting Upgrades

To safely support 12–14 psi and the elevated cylinder pressures of an 880 HP setup, Brenspeed strongly recommends the following components:

•    Oversized Heat Exchanger – Essential for controlling air charge temperatures
•    Cylinder Head Cooling Mod – Helps stabilize coolant flow and reduce hot spots
•    Billet Oil Pump Gears & Sprocket – Critical protection for high RPM, high boost operation

These upgrades ensure long term reliability and consistent performance under aggressive driving conditions.

Fuel Requirements

For maximum safety at STG 3 boost levels, Brenspeed recommends running 100 octane fuel. Power numbers referenced are based on 93 octane and free flowing headers, but customers should plan for 100 octane during real world use.