What does the A/R ratio mean for my turbo?

The A/R ratio (area-to-radius) measures the size of the turbine housing's internal passage. A higher A/R, like the 0.72 on this housing, generally allows for more exhaust flow at higher RPMs, supporting more top-end horsepower. A lower A/R typically results in quicker turbo spool at lower RPMs.

What are the benefits of V-Band connections?

V-Band connections use a clamp system to create a seal between two flanged ends. This method is often preferred for its ease of installation, secure fit, and resistance to leaks under high pressure and temperature compared to traditional bolt-on flanges.

Can this housing be used on any turbocharger?

No, this turbine housing is specifically designed for the Garrett G25 series of turbochargers. Using it on an incompatible turbocharger could lead to improper fitment, poor performance, or damage to the turbo system.

Garrett G25 Turbine Housing 0.72 A/R 740902-0076

Name: Garrett G25 THWA O/V V-Band / V-Band 0.72 A/R
Brand: Garrett
SKU: garrett-garrett-g25-thwa-o-v-v-band-v-band-0-72-a-r-t14-211117
Price: 830.94 USD
Availability: BackOrder

Garrett G25 THWA O/V V-Band / V-Band 0.72 A/R

$830.94

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Garrett G25 turbine housing, 0.72 A/R, V-Band inlet/outlet. Not CARB approved.

Key Features

Fits Garrett G25 series turbochargers.
Features a 0.72 A/R ratio for balanced spool and top-end power.
Durable cast iron construction handles high exhaust temperatures and pressures.
V-Band inlet and outlet connections ensure a secure, leak-free seal.
Simplifies installation and maintenance compared to flanged setups.
Not CARB approved; cannot ship to California.

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Product Details

If you're building a custom turbo system or looking to fine-tune the performance of your Garrett G25 turbocharger, this V-Band turbine housing is a key component. It dictates how quickly exhaust gases can exit the turbo, directly influencing spool time and top-end power. This particular housing features a 0.72 A/R ratio, which is a good balance for many applications, offering improved flow over smaller A/R housings without sacrificing too much low-end response.

Constructed from durable cast iron, this housing is built to withstand the high temperatures and pressures found in exhaust systems. The V-Band connections on both the inlet and outlet make for a secure and leak-free seal, simplifying installation and maintenance compared to traditional flanged setups. The 0.72 A/R (area-to-radius) ratio means the cross-sectional area of the housing is 0.72 times the radius, a measurement that helps determine the velocity of exhaust gases as they pass through. A higher A/R like this one generally supports more airflow at higher RPMs, making it suitable for builds aiming for increased horsepower.

This housing is designed specifically for the Garrett G25 series turbochargers. It's important to note that this part is not CARB approved and cannot be shipped to California. Ensure you check local emissions regulations before purchasing.