Skip to product information
1 of 12

RM ENGINEERING RACE

RM Engineering GT4+ Splitter Kit For BMW G87 M2

RM Engineering GT4+ Splitter Kit For BMW G87 M2

DOWNLOAD CFD ANALYSIS REPORT

SKU:DRMGT4PLSFSG87R13

Product
WHAT’S INCLUDED
  • 1X GT4+ Pre-preg Carbon Front Lip/Airdam
  • 1X GT4+ Tunneled Front Splitter
  • 1 Set Chassis-Mounting Brackets
  • 1 Pair Titanium Skid Block
  • 1 Pair Aluminum Skid Block
  • 1X Complete Installation Hardware
Regular price £1,123.00 GBP
Regular price Sale price £1,123.00 GBP
Sale Sold out
Shipping calculated at checkout.

WARRANTY POLICY

Warranty & Inspection Policy

All products must be carefully inspected within seven (7) calendar days of delivery.

Any claim involving damage, defects, missing parts, or incorrect items must be submitted within this seven-day inspection period. Claims made more than seven days after delivery will not be eligible for warranty coverage, replacement, return, or refund.

Customers are responsible for inspecting the product and confirming that it is correct, complete, undamaged, and suitable for the intended vehicle before installation.

Products must not be installed if any damage, defect, fitment issue, or missing component is discovered. Please contact us before proceeding with installation.

Once a product has been installed on a vehicle, it is considered accepted by the customer and is no longer eligible for warranty coverage, return, replacement, or refund.

By purchasing and installing our products, the customer acknowledges and agrees to this Warranty & Inspection Policy.

View full details

G87 M2 GT4+ Front Splitter Overview

The RM Engineering GT4+ Front Splitter Kit is a vehicle-specific, chassis-supported front aero system for the 2023+ BMW G87 M2. It combines a pre-preg carbon fiber front lip and airdam with an RM Spec foam-core carbon composite splitter, molded airflow tunnels and dedicated chassis-mounting brackets.

Full-vehicle CFD analysis reports 152.9 lbf of integrated splitter downforce at 120 mph using velocity-squared scaling, with a splitter lift-to-drag ratio of 5.81.

Tunneled Splitter and Chassis-Supported Structure

The upper carbon fiber front lip follows the factory G87 M2 front bumper and forms an airdam above the lower splitter. Molded tunnels help manage airflow beneath the front of the vehicle, while dedicated brackets support the splitter through the vehicle’s front structure instead of relying solely on the bumper cover.

Titanium and aluminum skid blocks help protect contact areas on the underside of the splitter during normal road and track use.

Product Features

  • Vehicle-specific design for the 2023+ BMW G87 M2
  • Pre-preg carbon fiber front lip and airdam
  • RM Spec foam-core carbon composite front splitter
  • Molded airflow tunnels
  • Dedicated chassis-mounting brackets
  • Titanium and aluminum skid blocks
  • Full-vehicle CFD-analyzed aero package
  • Professional installation required

CFD-Analyzed Splitter Performance

Pressure-coefficient visualization shows how the GT4+ front lip, airdam and tunneled splitter interact with the airflow around and beneath the front of the BMW G87 M2.

CFD pressure-coefficient visualization of the BMW G87 M2 GT4+ front lip and tunneled splitter
CFD pressure-coefficient visualization of the G87 M2 GT4+ front splitter system.
Integrated Splitter Result 100 km/h (62.14 mph) 120 mph V²-Scaled
Downforce 41.0 lbf 152.9 lbf
Drag 7.1 lbf 26.3 lbf
Lift-to-drag ratio 5.81 5.81

The native full-vehicle CFD simulation was performed at 100 km/h. The 120 mph figures use a velocity-squared scaling factor of 3.729583 and were not independently simulated at 120 mph.

Underside CFD view of the BMW G87 M2 GT4+ tunneled front splitter showing pressure coefficient and local streamlines
Underside CFD view showing the tunneled splitter within the complete G87 M2 aerodynamic package.

The reported splitter forces are integrated over selected splitter surfaces. They do not represent a comparison with the stock vehicle or the total load at the front axle. In the complete analyzed configuration, the full vehicle produced 489.2 lbf of net downforce at 120 mph using V² scaling, with a calculated aerodynamic load distribution of 48.5% front and 51.5% rear.

Review the complete BMW G87 M2 GT4+ CFD report for the methodology, test configuration and additional results.

Vehicle Fitment

Designed for:

  • 2023+ BMW G87 M2 Coupe

This front splitter kit was developed around the factory BMW G87 M2 front bumper. Fitment with aftermarket bumpers, modified bumper assemblies or other front aero components is not confirmed.

Browse the complete BMW G87 M2 aero collection for compatible front lips, splitters, canards and rear wings.

Installation

Professional installation is required. Installation involves removing front bumper and underbody components, positioning the carbon fiber front lip and tunneled splitter, and securing the chassis-mounting brackets to the vehicle’s front structure.

Test-fit and align all components before drilling, cutting or permanently securing the assembly. Selected factory bumper or underbody components may require modification to provide clearance for the mounting structure.

Confirm cooling airflow, ground clearance and hardware security after installation. Inspect the splitter, brackets, skid blocks and fasteners regularly, particularly after track use or contact with road surfaces. Do not lift or support the vehicle by the splitter.

Review the Ridgeline Motorsport Installation Guides before beginning installation.

Product Questions

What is included with the G87 M2 GT4+ Front Splitter Kit?

The kit includes a pre-preg carbon fiber front lip and airdam, tunneled carbon composite splitter, chassis-mounting brackets, titanium skid blocks, aluminum skid blocks and complete installation hardware. Center support rods are not included.

How is this different from the G87 M2 GT4 Bumper-Mounted Front Lip?

The GT4+ kit uses a full tunneled lower splitter and chassis-supported mounting structure. The G87 M2 GT4 Bumper-Mounted Front Lip mounts directly to the bumper, sits 0.5 inch higher and is intended for customers prioritizing street clearance and simpler installation.

How is this different from the G87 M2 Adjustable Front Splitter?

The G87 M2 Adjustable Carbon Fiber Front Splitter is inspired by the BMW M Performance Track Kit and combines an upper lip with integrated canards and an adjustable lower splitter. The GT4+ kit instead uses a GT4-developed front lip with a full tunneled composite splitter.

Does installation require permanent modification?

Yes. Installation requires front bumper and underbody-panel removal, alignment of the chassis-supported brackets and drilling for the mounting system. Selected factory components may require cutting or modification to provide clearance.

Can the splitter be paired with the GT4+ Canards and Rear Wing?

Yes. The splitter was developed as part of the coordinated G87 GT4+ aero configuration. It can be paired with the BMW G87 M2 GT4+ Canards and BMW G87 M2 GT4+ Swan Neck Rear Wing.

What does the 152.9 lbf downforce figure represent?

It is the V²-scaled aerodynamic load acting on the selected splitter surfaces at 120 mph for the analyzed configuration. It is not the improvement over a stock vehicle and does not represent total front-axle aerodynamic load.