Mutt Motorcycles
MAX UPGRADES - Harley Davidson Stage Performance

Evolve your Harley-Davidson® horsepower and energise your torque!

The colder months are here and for many of us, that means no more riding until it gets a bit warmer. But whilst you're not on the bike, why not upgrade your ride in time for the new riding season? Utilising our top-of-the-range performance-enhancing stage upgrades, you'll be turning heads wherever you go.

From Stage One, you’ll feel up to a 10% increase in performance throughout the entire RPM range. Then as you go up the Stages, your motorcycles overall performance, sound and feel will continue to evolve up to 50% further.

Scroll down to find out how we can evolve your beast...

Harley-Davidson Stage 1 Improvements
Harley-Davidson Stage 1


Enhance your Harley-Davidson® motorcycle with our Stage 1 performance package. Stage 1 upgrades are hugely recognised in the community and will add substantial value to your ride.

With Stage 1 you’ll receive an instant boost in performance. We customise a brand-new Air Cleaner kit and Exhaust System to your riding and style preference, creating less restriction for escaping gases and more overall engine airflow. We hold a variety of different brands, giving you full freedom when enhancing your engine's performance, look and style.

- Contact us today regarding Stage 1 on 01622 711680 -

Harley-Davidson Stage 1 Improvements

Harley-Davidson Stage 2 Stats
Harley-Davidson Stage 2


Take your Harley-Davidson® up a notch with our Stage 2 performance package. Stage 2 upgrades again add value to your ride and up to 25% in performance. Stage 2 is where we tailor your ride to you, giving you the choice of Torque Cam or Power Cam.

Our Torque Kit is perfect for riders looking for an instant acceleration boost, increasing your throttle response and acceleration.

Our Power Kit enhances your ride with a new essence of speed, perfect for an adrenaline-pumping burst of speed.

- Contact us today regarding Stage 2 on 01622 711680 -

Harley-Davidson Stage 2 Stats

Harley-Davidson Stage 3 Stats
Harley-Davidson Stage 3


Pump up the volume of your Harley-Davidson® with our Stage 3 performance package. Stage 3 is where the magic happens, accomplished by larger cylinders and matching pistons.

The increase in displacement allows your engine to intake more air and fuel – a higher compression piston then squeezes the air and fuel into a better-combusted source, pushing you further. With an increase of up to 35% performance, the upgrade will deliver instant passing power and on-tap acceleration.

- Contact us today regarding Stage 3 on 01622 711680 -

Harley-Davidson Stage 3 Stats

Harley-Davidson Stage 4 Stats
Harley-Davidson Stage 4


The unmatched level of Harley-Davidson® performance upgrade, is our Stage 4 performance package. Stage 4 adds higher-flowing CNC ported cylinder heads and a larger bore throttle body. This increases the velocity and feeds a larger amount of air and fuel into the engine – maximising power on larger displacement engines. In addition to combining ported cylinder heads and larger throttle body - in combination with cylinders, matching pistons, and proper cam - this achieves up to a 50% performance increase.

- Contact us today regarding Stage 4 on 01622 711680 -

Harley-Davidson Stage 4 Stats

Too much text? Watch these summary videos...

- If you have any questions about how to upgrade your motorcycle or need assistance, contact us today. Give us a call on 01622 711680 or visit us at Maidstone Harley-Davidson® -

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