DIY Guide: How to Install an OEM R35 GTR Wing on an Infiniti G37 Coupe
Mounting an R35 GT-R wing on a G37 Coupe requires measuring, drilling into sheet metal, and custom wiring. It is a bold aesthetic modification that demands careful execution, but the finished product integrates surprisingly well with the V36 chassis lines.
The Short Answer (TL;DR)
Installing an OEM R35 GT-R wing on your Infiniti G37 Coupe takes about three hours. It requires aligning the molded wing studs, drilling six mounting holes and one wiring hole through the trunk sheet metal, applying rust-preventative primer, and splicing the third brake light into the factory harness. Upgrading aesthetics is a great time to address performance.
The DIY Process Overview
Installing the GT-R wing starts with accurate templating. The OEM R35 wing features molded-in screws rather than threaded nuts, making alignment straightforward. Begin by marking the inner screw positions with a pencil. Drill the first two primary holes, verify the wing sits correctly, and then mark the remaining four mounting holes. You must also drill a seventh hole on the passenger side for the third brake light wiring.
Because the G37 trunk lid has a double-layer sheet metal design, you need a step bit to enlarge the inner trunk skeleton holes. This provides clearance for a 10mm socket to tighten the mounting nuts. Always place a block underneath your drilling area to prevent punching through interior trunk plastics. Once the holes are drilled, apply a generous coat of automotive primer inside the bare metal edges to prevent rust.
The final step involves weatherproofing and electrical. Run the wing's brake light wiring through the factory weather grommets. You will need to cut the OEM G37 third brake light connector and splice the GT-R wiring directly into the harness. Use a high-quality silicone gasket sealant and stacked washers on the outer mounting studs to ensure water does not leak into the trunk.
Why You Should Upgrade While You're In There
If you are modifying the exterior aerodynamics and aesthetics of your G37, it is the perfect time to ensure the powertrain backs up the aggressive look. Removing interior trunk liners and handling wiring means you are already invested in garage time. Upgrading your intake or exhaust system will complement the GT-R styling with actual VQ37VHR performance gains.
Recommended Upgrade: Cold Air Intake System. Moving the factory filters out of the hot engine bay allows the VQ37VHR to breathe dense, cold air, improving throttle response and adding verifiable horsepower.
Frequently Asked Questions
Is it hard to wire the GT-R third brake light?
It requires basic wire splicing. You must cut the factory G37 third brake light pigtail and use automotive butt connectors or solder to attach the R35 wing harness. Ensure you use proper heat shrink tubing to prevent corrosion.
How do I stop water from leaking into the trunk?
Thoroughly coat the mounting studs and washers in an automotive-grade grey gasket sealant before bolting the wing down. The G37 trunk curvature requires stacking at least two washers on the outer studs to ensure a flush, watertight clamping force.
Shop Infiniti G37 Upgrades Here
