Plaid Speed - 203 MPH Top Speed Unlock Service

Already have upgraded brakes? This service unlocks a 203 mph top speed on your Model S Plaid.

Ideal for 1/2 mile racing and other high speed track events.

SirHarrold ships you a plug in computer kit that temporarily connects to your vehicle. Once connected to WiFi, SirHarrold performs the update remotely. No shop visit is required.

A reliable WiFi connection is required during the update.

Model S Plaid only. Not compatible with Model X Plaid.

If you do not already have upgraded brakes, check out the Hack Pack Brake Kit. It is our best value complete brake upgrade package and includes the 203 mph Top Speed Unlock Service.

Questions? DM @SirHarroldBahls on Instagram.

Demo Video Top Speed Unlock

Equipment Deposit

No equipment deposit is required when this service is purchased with a Very Spicy Tune Kit that includes a tablet.

For all other purchases, SirHarrold provides the required equipment with a $900 refundable deposit.

The equipment must be used within 2 business days of delivery and returned to the carrier within 2 business days after the service is completed.

A $75 per day late fee applies if the equipment is not returned to the carrier within the required timeframe.

The refundable deposit must be sent by Zelle. Credit card deposits are accepted but are subject to a 3.9% nonrefundable processing fee.

Safety Notice

High speed driving involves significant risk and should only be performed in a controlled track environment.

Proper tires, wheels, brakes, and brake fluid are essential for high speed operation. All vehicle systems should be thoroughly inspected before every pass.

Even with the proper equipment and preparation, high speed driving remains inherently dangerous. SirHarrold does not represent or imply that this product makes high speed driving safe.

By purchasing or using this product, you acknowledge and accept all risks associated with high speed vehicle operation.

Brake Pedal Feel

Installing the Top Speed firmware changes the brake pedal feel.

Compared to the factory calibration, the brake pedal has a more progressive response with increased pedal travel. Maximum braking force requires additional pedal travel and greater pedal effort than the factory configuration.

Drivers should become familiar with the revised brake pedal feel in a safe environment before operating the vehicle at high speeds or on a race track.