Traxxas Nitro Upgrade Kit .15 to TRX 2.5

The Traxxas Nitro Upgrade Kit converts TRX Pro .15 nitro-powered models to the TRX 2.5 Racing Engine specification, giving older cars the hardware they need to accept the TRX 2.5. This kit bundles the tuned header and pipe system plus the mounting and linkage parts you need, with major components arriving pre-assembled and pre-adjusted to speed the swap. Engine sold separately.

Key Features

• Complete header and tuned pipe system to match TRX 2.5 exhaust flow and performance.
• Pipe hanger and coupler included for secure, vibration-resistant pipe mounting.
• Linkage components provided to adapt throttle and carb controls to the TRX 2.5 layout.
• Model-specific parts supplied so the kit fits the required chassis locations without extra fabrication.
• Major components come pre-assembled to reduce bench time and get you back on the track sooner.
• Pre-adjusted fittings and linkages cut down setup work and simplify final tuning.
• Clear, step-by-step instructions included to guide the installation process.

What's Included

• Header (tuned for TRX 2.5)
• Exhaust pipe
• Pipe hanger
• Coupler
• Linkage kit for throttle/carb adaptation
• Additional model-specific mounting components
• Installation instructions

Why Choose This Upgrade

This kit is designed for hobbyists who want to modernize TRX Pro .15 models with the TRX 2.5 Racing Engine hardware. It removes guesswork by supplying the tuned exhaust parts and the mounting/linkage pieces needed for a clean swap, with pre-assembled parts that save time. The Traxxas Nitro Upgrade Kit is a practical option for intermediate builders and experienced drivers looking for a reliable way to step up engine performance while keeping installation straightforward.