Converter Service Request — Circle D Specialties

Contact Information

First Name Last Name

Email Address Phone Number

This is a business order — ship and bill to a company

The address where your converter will be returned after service is complete.

Country Street Address

Apartment / Suite / Unit (optional)

City State ZIP Code

Same as Return Shipping Address

Circle D Order # S12345 Purchase Date (OPTIONAL)

Model / Series

Part Number Serial Number A-XXXXX OR CDS-XXXXX

Service Type

Stall Change and Upgrade selections will request build specifications below.

Warranty Concern will request symptom and timing details.

Describe Your Request in Detail

Required for Stall Change and Upgrade requests.

Original Rated Stall Speed Current Stall Speed

Target Stall Speed Vehicle (Year / Make / Model)

Engine (note year if swap) Estimated Horsepower (Flywheel)

Transmission Flexplate (SFI rating & part #)

Power Adders Camshaft Specs (Duration / Lift / LSA)

Tire Size Rear Gear Ratio

Primary Concern When Did It Start?

Up to 8 images, 10 MB each. JPEG, PNG, HEIC, or WebP.

Up to 50 MB. HP Tuners, EFI Live, Holley, Cobb, SCT, DiabloSport, or similar. Executable file types are not accepted.