BorgWarner S300SX-E / Predator GXR-7 Non-VGT Performance Turbo

A non-VGT turbo uses fixed turbine geometry. Unlike a VGT turbo, it does not use adjustable internal vanes to change exhaust flow through the turbine as engine speed changes.

See the GXR-7 S474 Non-VGT Turbo.

A VGT turbo adjusts vane position to manage boost response and exhaust flow across the RPM range. A non-VGT turbo uses a fixed housing and is selected around the truck's intended horsepower, fueling, and driving use.

Neither is automatically better. A non-VGT setup can be a strong choice for high-horsepower, racing, or specialized builds, while a VGT turbo can better suit drivers who want factory-style response and an integrated exhaust brake. The right choice depends on how the truck is used.

It can, depending on turbo size, turbine housing A/R, fueling, and engine setup. A smaller A/R housing generally improves low-RPM response, while a larger housing can support more top-end airflow.

Tuning is commonly recommended to get the best performance and safe operation from a non-VGT conversion. Turbo Time's S300SX-E listing specifically notes that tuning is required for optimal performance.

Usually, yes. The required parts depend on your truck and turbo choice, and may include a manifold, pedestal, piping, clamps, oil lines, and intake components. Turbo Time's S300SX-E listing requires the matching S300 T4 installation kit.

Most factory exhaust brakes rely on a VGT turbo's adjustable vanes. A non-VGT turbo does not have those vanes, so retaining exhaust braking may require a separate exhaust-brake solution. Confirm the requirements for your exact truck before converting.

Choose around your engine, horsepower goal, fueling, transmission, and intended use. Turbo Time offers non-VGT options from S300 and S366 models through larger S474 and S480 setups. Review the product specifications and required supporting parts before ordering.

A correctly sized non-VGT turbo can improve airflow and may help lower EGTs. Results depend on the complete setup, including tuning, fueling, turbine housing, and how the truck is driven. Turbo Time's S474 GXR-7 is designed to support improved airflow and lower EGTs in suitable high-performance builds.

A properly matched and installed non-VGT performance turbo can be reliable. Reliability depends on correct sizing, clean oil, unrestricted air filtration, proper tuning, installation quality, and staying within the turbo's intended operating range. A performance turbo should be selected as part of a complete build, not by horsepower rating alone.

Turbo Time designs both Non-VGT and VGT turbos to provide strong power, quick spool-up, and lower EGTs. Our goal is to build performance turbos that still deliver responsive boost at lower RPMs.

For example, even with a larger Non-VGT option such as the S474 GXR-7, you can expect strong low-RPM response and towing capability when the turbo is properly matched to your truck's overall setup. We believe performance should not come at the expense of drivability.