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TERMS & CONDITIONS, Warranty, Emissions Statement 03/10/2021

A copy of our terms and conditions can be found here.

By purchasing from our website or over the phone you automatically agree to the below terms and conditions, last updated 03/10/2021

Limited Warranty

Unless otherwise specified no warranty is expressed or otherwise implied for Mast Motorsports products.  Due to the nature of motorsports and racing we do not offer a product warranty unless otherwise noted.

Component Workmanship limited Warranty 

Mast Motorsports offers a workmanship guarantee that applies to engines and components specifically manufactured by Mast Motorsports LLC.  Whereas, Mast will fix, replace, or substitute components it expressly manufactures in case of workmanship flaws.  This applies to Mast manufactured components for 6 months after sales invoice date.  No refunds or exchanges on engines or components allowed.  This limited warranty does NOT apply to components purchased from vendors or other manufacturers.

Engine Workmanship Limited Warranty

 Engines assembled, machined, & tested by Mast Motorsports are warranted against workmanship issues or failures for 12 months after final invoice date.  

Due to the vast nature of components used, Mast cannot warrant component failures.  Due to the nature of racing and competition use, this warranty does not apply to engines used in racing or competitive motorsports activities, or engines rated above 750 HP.  The limited warranty only applies to engines completely assembled and dyno tested by Mast Motorsports.  No warranty expressed or implied on partial engines, short blocks, or other partial assemblies of engine components.

It is highly recommended that our customers use only Mast Motorsports Approved oil where applicable, failure to do so may void any and all warranties.  Contact Mast for a list of approved oil.

All Limited Warranties are non-transferable, without written approval by Mast Motorsports. 

Any agreed upon warranty will be covered by replacement components or any combination of labor and components.  No refunds will be given.

For warranty claims, customer must provide in writing, within 30 days of issue, a statement of the issue, supporting pictures of issue(s), original sales receipt, mileage of engine, proof of proper oil & oil changes.

Mast is not liable for any subsequent damages to property, equipment, or related hardware.

Some products sold are for off-highway, racing, or track use only. Check local & federal guidelines for your vehicle which may require different emission standards & laws. Please check with your state and federal emission standards prior to ordering. 

WARNING: It is illegal to install any aftermarket part that alters or modifies the original design or performance of the motor vehicle pollution control system unless the part is exempted or has an Executive Order issued by the California Air Resources Board (also commonly referred to as the "EO" number). Installation of parts which are not CARB approved on a pollution-controlled vehicle in the State of California may result in the Department of Motor Vehicles (DMV) revoking the vehicle registration and certificate of ownership (title), refusing the transfer of registration, and/or the vehicle failing smog inspection. Law enforcement may cite you for the use of an illegal aftermarket part and seize your title and license plate.