Stop fighting with your exhaust connection — this purpose-built GT55 GTX55 turbine housing discharge flange gives you a clean, secure dual V-band interface right out of the box, clamp included.

Features & Benefits

Dual V-Band Design

Two V-band connections — one on each face of the discharge — mean faster, leak-free assembly and removal without hammering at stubborn bolted flanges. Whether you're fitting this during a fresh build or pulling the housing for maintenance, the dual V-band format makes the job straightforward.

5″ / 120 mm Tube Interface

Sized precisely for a 5-inch (120 mm) exhaust tube, so your outlet piping lands where it needs to with no gap-filling or improvised adapters.

V-Band Clamp Included

The matching V-band clamp ships with the flange — no separate hardware order, no sizing guesswork. Everything you need for a complete, rattle-free connection is in the box.

Direct Fit for GT55, GTX55, G55, and G57 Series

Engineered specifically for GT55, GTX55, G55, and G57 turbine housings, making it equally at home on True North Turbos (TNT) units and compatible aftermarket or OEM housings across the same series.

BSI Inc. Quality

Manufactured by Black Sheep Industries, this is purpose-built performance turbo hardware — not a generic import reworked to fit. The same people building the turbos built the hardware to go with them.

Universal Application

While this flange is well suited to diesel performance builds, it's a universal turbo component — equally at home on high-output gas engines, race builds, and everything in between.

Bolt it into your build with confidence, knowing every dimension and connection point was designed for exactly this application — because it was.

FAQ

What turbine housings does this discharge flange fit?

It is engineered specifically for GT55, GTX55, G55, and G57 turbine housings, including True North Turbos (TNT) units and compatible aftermarket or OEM housings across the same series.

What size exhaust tube is this flange made for?

This flange is sized for a 5-inch (120 mm) exhaust tube.

Is the V-band clamp included?

Yes. The matching V-band clamp ships with the flange, so no separate hardware order or sizing guesswork is required.

Can this flange be used outside diesel performance builds?

Yes. While it is well suited to diesel performance builds, it is a universal turbo component that can also be used on high-output gas engines, race builds, and similar applications.