This 400 chassis journal bearing turbo is a high-performance powerhouse, capable of supporting 1,400 to 1,520 horsepower (HP) on an average sub-6.0L pushrod V8 engine. Designed for serious power applications, this turbo is engineered to deliver exceptional boost response and efficiency, making it ideal for racing, high-horsepower street builds, and drag applications.

The TNT488 88mm turbo incorporates our latest and most advanced compressor wheel technology, maximizing airflow and performance. Additionally, it features a choice of turbine wheels: either the 96x88mm or the 103x92mm configuration. These turbine wheels are the result of extensive research and development, ensuring superior exhaust flow and reduced backpressure. Our engineers designed them specifically to alleviate some of the restrictions and limitations found in standard BW 96x88 turbine wheels, allowing for greater power potential and improved efficiency.

With precision-engineered components and cutting-edge design, this turbo is built to withstand the demands of high-horsepower applications. Whether you're pushing the limits at the track or looking for a competitive edge, this custom-built turbocharger delivers the performance you need.

Each TNT488 turbo is built to order, ensuring the highest quality and attention to detail for your specific performance needs.

Key Specs

• 88mm compressor wheel, journal bearing
• 96x88 or 103x92 turbine wheel options
• T6 flange, multiple A/R options
• Rated 1400-1520hp on sub-6.0L pushrod V8 applications
• Built to order

Replaces / Cross-Reference

The TNT488 is a direct bolt-on replacement for S488 turbochargers and other 88mm S400-frame units. Built on the same 400 frame, it uses the mounting hardware you already have:

• Turbine inlet: T6 — fits your existing T6 manifold
• Turbine discharge: 5.75" (146mm) marmon — same flange and 99502-0588 clamp
• Compressor discharge: V-band, sized to your charge pipe
• Oil drain: 50.8mm (2.00") bolt centre, 12AN port — same drain

Note that our 96x88 and 103x92 turbine wheels are our own designs, developed to reduce restrictions found in standard offerings. Fitment is equivalent; airflow character will differ, generally in your favour.

Full model mapping: S400 replacement cross-reference. Housing selection: S400 turbine housing and A/R guide.

Frequently Asked Questions

What is the TNT488 T6 rated for?

1,400 to 1,520 horsepower on an average sub-6.0L pushrod V8 engine, built for racing, high-horsepower street builds, and drag applications.

Is the TNT488 a direct replacement for an S488?

Yes. The TNT488 is built on the 400 frame, so it is a direct bolt-on replacement for S488 turbochargers. Your T6 manifold, 5.75" marmon downpipe flange, clamp, compressor discharge and 12AN oil drain all carry over.

What turbine wheel options are available?

This turbo is available with either a 96x88mm or a 103x92mm turbine wheel.

Power ratings on this page are quoted in crank horsepower (HP). Figures previously published in wheel horsepower (WHP) have been restated using our in-house tested conversion — the hardware and its capability are unchanged.

BorgWarner and S400 are trademarks of BorgWarner Inc. Black Sheep Industries Inc. and True North Turbos are not affiliated with or endorsed by BorgWarner Inc. Model designations are used for identification and fitment reference only.