Industrial Injection 170308-XR1 Series Turbocharger A/R Billet - XR1 TP38 1.15 66mm

The Industrial Injection 170308-XR1 is an XR1 Series performance upgrade for the TP38 turbocharger platform, built around a 66mm Billet Blade Technology compressor wheel. Engineered as a modified stock replacement, this turbo delivers a significant step up in airflow and efficiency over the factory unit while retaining the stock mounting points for straightforward installation.

The Billet Blade Technology (BBT) compressor wheel is precision-machined from billet aluminum, offering greater strength and a more refined aerodynamic profile than a cast wheel. The slim-nose compressor wheel design maximizes wheel efficiency, helping to push more air with less heat — translating directly to lower exhaust gas temperatures (EGTs) and more usable power. The high-flow 1.15 A/R turbine housing is tuned for top-end power output and is best suited for builds running large injectors with supporting performance modifications and custom tuning.

Key Features:

• Modified stock replacement TP38 turbocharger for 1994–1997 7.3L Power Stroke diesel engines
• 66mm Billet Blade Technology (BBT) compressor wheel for increased airflow and strength
• Slim-nose compressor wheel design for improved wheel efficiency
• High-flow 1.15 A/R turbine housing optimized for top-end power
• Helps lower exhaust gas temperatures (EGTs)
• Optional polished compressor housing available separately for a custom appearance

Core Charge Notice: A $150 core charge applies to this turbocharger. You may prepay the core charge and have the unit shipped immediately, with a refund issued upon receipt and inspection of your returned core — or send in your core prior to shipment. The prepay-and-return method is recommended to avoid shipping delays.

This is a performance-focused turbocharger intended for high-horsepower diesel builds. It performs best when paired with larger injectors and a quality custom tune. It is not recommended for applications primarily used for towing heavy loads. California Residents: See Prop 65 Warnings.