Fact Sheet : 2015-26 Mustangs Which blower is right for you?

Choosing between Whipple and Roush superchargers isn’t just about horsepower—it’s about personality, drivability, and goals .

 In this post, we dive deep into how these premium powerhouses stack up in design, performance, and everyday experience.

From Whipple’s twin-screw torque monster to OEM-backed reliability and linear boost delivery, we break down which blower best fits your build style, and performance expectations. Whether you’re chasing dyno numbers or balanced street power, this guide helps you decide which setup truly suits your driving ambitions.

So, first question is  ''What are you going to do with your car? ''

Are you going to go cruising on a nice Saturday night with your partner or are you going Roll Racing, Drag Racing or are you after a car that handles track days with ease?

Or do you want some of those or all of them?

In the street cruiser scenario the main criteria is how the car behaves at light to part throttle in traffic. If its clunky and has a flatspot ,then all of a sudden it breaks into wheelspin and you are on the brakes with your heart racing it doesn't fit the bill for street. The throttle acts like an on off switch and no-one really wants to drive it on the street.

Alternatively if it drives like a standard car and is smooth,power delivery is linear and once you start squeezing the throttle it smoothly delivers controllable torquey power which is linear in its intensity you smile and appreciate how nicely the car performs and how unintimidating it is to drive , you have the perfect street car

The management of the engine revolves around a calibration or " tune" and that is the key to drivabilty and subsequently how much you enjoy the car with the supercharger  fitted.

Not everyone wants the above and are happier with a " drive it like you stole it" feel of pure aggression and aren't concerned about lateral feel and smooth driving.

The design difference in the two Superchargers is minimal. the Roush for 15-17 Mustangs is 2.3 litres , the 18-23 Mustang is  2.65 litre. The Whipple is 3 litre.

Its worth noting that on the Dyno there is minimal difference in torque or power between the Roush and Whipple, but bear in mind the point of power and torque delivery and the intensity is substancially different.

The difference is in the operating computer software or calibration.

With the Whipple for 2015-2023 FM and FN Mustang the software  is written by Whipple with no help or collaboration with Ford themselves. 

The Roush software for those years on the other hand is written by the Ford Performance  engineers in association with Roush resulting in superior drivability at partial throttle application.

However in the 2024 onward S650 Mustang the reverse applies as Ford Performance partnered up with Whipple and the software was written with their input, hence a very smooth and compliant integration . Let it be said though that the Roush 24 plus Supercharger is also a very compliant marriage albiet without Ford OEM input.

Whichever your choice, EME will expertly install the hardware and calibration and the finish will be per factory.

Any questions ,we are here to ask!