Ridgeline Motorsport Toyota GR Supra A90 / A91 GT4+ Front Splitter Kit — BASE / EVO
Ridgeline Motorsport Toyota GR Supra A90 / A91 GT4+ Front Splitter Kit — BASE / EVO - GT4+ BASE Kit (Lip+Splitter+Titanium Skid Block) is backordered and will ship as soon as it is back in stock.
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Choose the RM Engineering GT4+ BASE or EVO front splitter kit for your A90/A91 Supra. Both use a carbon front lip, molded tunneled lower splitter and structural mounting components; EVO adds pre-preg carbon splitter endplates.
Design and construction
The molded tunnel is built into the lower splitter, while brackets and support rods provide a structural installation. Replaceable titanium and aluminum skid blocks protect contact areas. Match the kit to the rest of the aero setup rather than choosing from appearance alone.
Product details
- BASE: front lip and tunneled splitter
- EVO: BASE arrangement plus pre-preg splitter endplates
- Chassis brackets, support rods and replaceable skid protection
- Canards sold separately
Fitment and specifications
| Specification | Detail |
|---|---|
| Application | Toyota GR Supra A90 / A91 |
| Material | reinforced carbon lip and molded tunneled splitter |
| Configuration | chassis-mounted BASE or EVO front splitter kit |
This Pit Garage listing focuses on Toyota GR Supra A90 / A91. Confirm the model, installed body panels and existing modifications before purchase. Aftermarket panels and changed mounting points require separate assessment.
Configuration comparison
| Configuration | Aero Components | Intended Use |
|---|---|---|
| GT4+ Base | Reinforced carbon front lip and tunneled front splitter | High-performance street, dual-purpose and track-day builds |
| GT4+ EVO | Base front lip and tunneled splitter with pre-preg carbon fiber endplates | More track-focused applications requiring additional front aerodynamic load |
RM-reported CFD results
| Splitter Configuration | Integrated Splitter Load at 120 mph | Splitter Aerodynamic L/D |
|---|---|---|
| Base | 179.8 lbf | 5.35 |
| EVO | 230.7 lbf | 6.39 |
RM reports these component forces from a complete-vehicle CFD model solved at 100 km/h. Values shown at 120 mph use velocity-squared scaling; they are not a separate 120 mph simulation or measured track result. They do not represent an isolated part gain or a guaranteed axle-load change on your car.
Installation and ownership
Professional installation is recommended. Selected OEM components require modification. Position the lip, splitter, brackets, rods and skid blocks together before final drilling or trimming, and verify ride-height clearance.
Order through Pit Garage
Pit Garage is an automotive repair and race-preparation shop in South El Monte, Los Angeles County. Send the chassis, body-panel configuration and photos of existing modifications through our contact page to discuss product selection and current availability. For local fitting, ask about installation scheduling.
Product FAQs
Are canards included in BASE or EVO?
No. The Supra GT4+ canards are a separate four-piece kit. EVO adds splitter endplates, which are different components.
What fitment information should I provide?
Provide the chassis, model year, installed bumper or body-panel configuration and any existing aero parts. Vehicle names alone may not establish compatibility after modifications.
Do these specifications guarantee a performance gain?
Dimensions and construction identify the product. Aerodynamic results depend on the complete vehicle, part position, ride height and operating conditions; the listing does not guarantee a specific lap-time or downforce gain.
Ridgeline Motorsport Toyota GR Supra A90 / A91 GT4+ Front Splitter ...
