SunCoast Performance.
Transmission upgrades built past the factory weak points.
SunCoast Performance has developed aftermarket torque converters, transmissions and supporting components since 1989. Its products are shaped by failure analysis, real-world testing and American manufacturing for road, towing and high-performance applications.
Torque converters, transmissions and upgrade components developed around known factory weak points.Why we choose SunCoast Performance
SunCoast Performance began by rebuilding transmissions and studying why factory components failed. That workshop knowledge developed into torque converters, complete transmissions and supporting parts intended to address the weak points found in real vehicles. The right route still depends on the exact transmission, use, torque demand, cooling and calibration.
Failure-point development
Products are developed around the parts and operating conditions that expose limits in the factory transmission.
Built for the actual job
Daily driving, towing and performance use place different demands on the converter, clutches, cooling and calibration.
Complete transmission thinking
Choose the converter or internal hardware as part of the complete transmission, fluid, cooling and control strategy.
- Identify the transmission Confirm the vehicle, model year, engine and exact transmission code.
- Define the work Tell us whether the vehicle is used for road, towing, off-road or performance driving.
- Review the supporting setup Include current hardware, torque target, cooling, fluid and calibration.
- Choose the package Match the converter, internal components or complete transmission to the full application.
SunCoast Performance questions, answered
What details are needed to choose a SunCoast upgrade?
Send the vehicle, model year, engine, exact transmission, current modifications, intended use and torque goal.
Is a torque converter chosen separately from the transmission?
It should be matched to the engine, vehicle weight, tyre size, use and transmission setup rather than treated as an isolated part.
Should cooling and calibration be checked too?
Yes. Fluid temperature and transmission control can be part of a reliable upgrade route, especially for towing or higher torque.
Find SunCoast Performance parts that fit your vehicle
Choose the vehicle before comparing products, then check the product page or ask us to confirm the exact application, installation notes and supporting hardware.
Need fitment, tuning or upgrade advice for SunCoast Performance? Send us the vehicle, current setup and what you want it to do, and we will help you choose the right next step.