Home > Motor & Gearing Upgrades > Motor / Gearing Tuned Systems > Boomerang / Slingshot Tuned Kits
Stage I kits are best for vehicles that are stock. - Performance 550 Motors with Internal Fans. Metal Pinion Gears installed already. Easy, fast installation for a 10-15% speed boost.
Stage II kits are best for vehicles that require increased durability. - Performance 550 Motors with Internal Fans, Steel Pinion Gears, Steel First Gears on Ball Bearings, Race Grease, & the newest 7R Gearbox design.

Boomerangs will not tolerate increased voltage due to their electronics. As such there is no benefit to a Stage III or IV kit as they are designed for higher voltages.
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Stage I Boomerang / Slingshot
Stage I Boomerang / Slingshot
Our Price: $90.00

This kit replaces your 3 stock motors with our Performance 550's for a 15% speed gain with very little work or investment. Kit includes:
3 Performance 550's with internal cooling fans
3 Metal Pinion Gears attached to motors
Bullet Connectors for easy installation of wires - no soldering required
Installation and break-in instructions
Stage II Speed Motors/Gearboxes for Boomerang / Slingshot
Stage II Speed Motors/Gearboxes for Boomerang / Slingshot
Our Price: $300.00

This is the Stage II Performance Motor/Gearbox kit for all Power Wheels Boomerangs & Stingers. The Stage II kit includes Lightened Hardened Steel First Gears with Ball Bearings for added gearbox durability. These gearboxes have been built using our Race Grease to reduce friction and motor temps. Kit includes:
- 3 Modified 550 motors pre-installed in 3 gearboxes.
* Torque sleeves on all motors.
* Internal cooling fans on all motors
* Quick-change wire connectors that require no soldering to install and allow fast install/removal of gearcases!
- Hardened Steel First Gears running on 2 ball bearings each.
- Hardened Steel Pinion Gears.
- Race Grease for even more top speed.
- Gearboxes are the newest 7R high strength design.
- Installation and Break-in Instructions.

Motors and gearboxes are safe for up to 18 volts. However the electronics in Boomerangs do not tolerate increased voltage. Heat sinks are not an option due to clearance issues in the Boomerang. Also they aren't needed on this model at 12 volts.

Just like when modifying a real car, modifying a Power Wheels voids all warranties. MLToys bears no responsibility for damage to vehicle, persons, or property incurred by modifying a vehicle. Be Smart, Be Safe, and Have Fun!