The TNTSF54 is a direct bolt-on replacement for the Garrett® G30 and G35 series — a fully ball bearing, water-cooled, oil-lubricated small-frame turbo running a 54mm (2.13") compressor inducer over the 60x55mm G30-size turbine wheel. It's the quickest-spooling turbo in the TNTSF lineup, flowing 69 lbs/min with a proven 615+WHP — roughly 720+ horsepower at the crank. That out-rates the 54mm G30-660's 660 hp figure, at hundreds of dollars less than the Garrett equivalent.

Proven Across Platforms

• Subaru WRX/STI (EJ25): With the TNTSF54, EJ25 builds have hit 615+WHP (720+ HP) — AWD thrill with proven punch.
• Mitsubishi Lancer Evolution (4G63): The TNTSF54 sends the 4G63 confidently beyond 500 horsepower.
• Toyota 2JZ: Balanced flow, perfect for 2JZ builds in the 400–500+ horsepower range.
• BMW N54/N55: Smooth TNTSF54 airflow lets these inline-6 engines reach 450+ horsepower.
• Ford Coyote 5.0 V8: Twin TNTSF54s can push this V8 beyond 1000 horsepower.
• Chevrolet LS/LT V8 (4.8L–6.2L): Twin TNTSF54s deliver 850 to 1000 horsepower.

Drop-In G30/G35 Fitment

If your manifold, downpipe, and lines are set up for a G30 or G35, the TNTSF54 bolts straight in — no custom fabrication. Choose a T3 0.83 A/R turbine housing or dual V-band in 0.61, 0.83, 1.01, or 1.21 A/R, the same fitment options G-Series builders already plumb for. The TNTSF54 is an independent True North Turbos unit, not a Garrett product — it simply shares the footprint, and out-values it.

Key Specs

• 54mm (2.13") compressor inducer, 60x55mm turbine wheel
• 69 lbs/min flow rating — proven 615+WHP (approx. 720+ HP at the crank, WHP × 1.17)
• Fully ball bearing, water-cooled, oil-lubricated
• Direct bolt-on replacement for Garrett® G30/G35 fitment
• Turbine housing options: T3 0.83 A/R or dual V-band 0.61 / 0.83 / 1.01 / 1.21 A/R
• Designed, machined, assembled, and balanced in Canada by Black Sheep Industries

Frequently Asked Questions

What is the TNTSF54 rated for?

It has topped 615+WHP — roughly 720+ horsepower at the crank — on EJ25 (Subaru WRX/STI) builds, with a 69 lbs/min flow rating and per-platform results ranging from 400+ hp on a single turbo up to 1000+ hp on twin-turbo V8 applications.

Is the TNTSF54 a direct drop-in for the Garrett G30/G35?

Yes. It's a direct bolt-on replacement within the G30/G35 footprint — fully ball bearing, water-cooled, and oil-lubricated — installing without custom fabrication.

How does the TNTSF54 compare to the G30-660?

Both run a 54mm compressor inducer over a 60x55mm turbine. The TNTSF54's 615+WHP rating works out to roughly 720+ hp at the crank — above the G30-660's 660 hp rating — at a significantly lower price, and it's built and balanced in Canada.

Is the TNTSF54 a Garrett turbo?

No. It's designed and manufactured by True North Turbos, a Black Sheep Industries brand. "G30/G35 fitment" refers to compatibility only.

Not manufactured by, affiliated with, or endorsed by Garrett Motion Inc. "Garrett", "G30", and "G35" are referenced solely to identify fitment compatibility.