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The actual cost of converting a GTT to a GTR using an OEM kit.

R34 GTT to GT-R Widebody Conversion: Complete OEM Build Guide

によって Dylan Sattler

Project Scope: OEM GT-R Exterior Conversion

Transforming an R34 GTT into a GT-R is a detailed process that enhances the appearance and performance of your vehicle. This transformation begins with an engaging project scope that focuses on achieving factory specifications using OEM components.

Objective: To achieve a factory-spec GT-R widebody

The key objective is to convert a non-GT-R chassis into a full GT-R widebody version. To accomplish this, you'll require original Nissan and Nismo heritage components, along with the necessary structural mounting hardware.

Phase 1: Front-End Architecture (The Foundation)

The front end of the car serves as the foundation for the entire build. Doing it “the Nissan way” requires a complete replacement of the mounting skeleton to ensure proper fitment. Without these essential brackets and supports, achieving factory panel gaps with the hood and bumper is impossible.

  • Primary Panels:
    • OEM Hood: Available in aluminum or carbon fiber, it requires specific GT-R hinges and stays.
    • Fender Set: You need a wider GT-R profile fender set for the transformation.
    • Front Bumper Fascia: Options include Standard, V-Spec, or Nismo specifications.
    • Lip Kit: Must include both Middle and Lower Lip assemblies for a seamless look.
  • The "Invisible" Essentials (Required Brackets):
    • Headlight Mounting Suite: This includes upper and lower brackets and the upper width seal.
    • Reinforcement Bar: A GT-R specific crash bar that dictates bumper fitment.
    • Structural Supports: Essential parts such as the fender stiffener riser set and lower fender-to-bumper brackets.
    • Latch System: Comprises a radiator center support bar and a GT-R specific hood latch.
    • Finishing Level: Brand new OEM GT-R Fender Liners are essential to meet the wider fender edge.

Phase 2: The Mid-Section (The Connection)

This phase connects the aggressive front fenders to the new wide rear quarters. The fitment for this section centers on finding rare trim pieces that can complement the build.

  • OEM Side Skirts: These high-value items are critical for matching the overall side profile of the GT-R.
  • GT-R Front Mudguards: Small "spats" that complete the transition from the front fender to the side skirt.

Investment Note: Expect to spend around $3,000 to $4,500 on these items alone, before factoring in preparation and painting.

Phase 3: The Rear Section (The Structural Graft)

This is arguably the most invasive part of the transformation, requiring permanent modifications to the chassis along with careful metalwork.

  • Rear Quarter Panels: These are some of the hardest parts to source, often costing upwards of $7k per side after considering international logistics.
  • The Grafting Process:
    • Inner Wheel Arch Extensions: Adaptations are needed to fit the new outer skin’s width.
    • Fuel System: A GT-R specific fuel filler cap/cover is crucial for a flush finish with the wider panel.
    • Optics: GT-R taillight covers are mandatory to accommodate the deeper curvature of the quarter panel.
    • The Rear Bumper Suite includes:
      • Rear Bumper Fascia: Now discontinued, you’ll need to source this through heritage options.
      • Specific Brackets: GT-R-only brackets are essential for securing the bumper to the wider quarter panels.
によって Dylan Sattler