T3 .48 A/R Turbine Housing GT28 / GTX28 3″ GT V-Band Exit w/81mm Lip

This T3 .48 A/R turbine housing is built for GT28 and GTX28 platform owners who demand ultra-quick spool without sacrificing turbine efficiency. Designed around the T3 frame, it delivers response characteristics that outperform comparable T25-flanged housings, making it the housing of choice for enthusiasts chasing snappy throttle response on their GT28RS, GT2876R, or GT2871R-based builds.

Specifications

• Frame Size: T3
• A/R Ratio: .48
• Downpipe Flange: 3″ GT V-Band Exit
• V-Band Outer Diameter: 90mm OD ring
• V-Band Centering Groove: 81mm centering groove / 81mm lip

Performance & Application

This housing is engineered to fit the turbine wheel found on the GT28RS, GT2876R (also known as GT25/40R), and all GT2871R turbos, as well as all GTX28 models. The .48 A/R rating in the T3 frame provides flow comparable to a T25-flanged .64 A/R housing, but with notably higher turbine efficiency and quicker spool characteristics. It’s the ideal choice for builders who want the compact packaging and responsiveness of the T3 frame without giving up flow capability.

Compatibility & Fitment

• GT28RS
• GT2876R (also known as GT25/40R)
• All GT2871R turbos
• All GTX28 models

Frequently Asked Questions

What is the A/R ratio of this turbine housing?

This turbine housing carries a Garrett T3 .48 A/R rating, designed for ultra quick spool.

What turbochargers does this housing fit?

It fits the turbine wheel found on GT28RS, GT2876R (GT25/40R), and all GT2871R turbos, as well as all GTX28 models.

What downpipe flange does this housing use?

It uses a 3″ GT V-Band downpipe flange with a 90mm OD ring and an 81mm centering groove, requiring a matching GT V-band flange with the 81mm lip and matching clamp.

How does the .48 A/R T3 housing compare to a T25 .64 A/R housing?

The .48 A/R in the T3 frame flows comparably to a T25-flanged .64 A/R housing, but turbine efficiency is much higher and spool is much quicker on the T3 frame housing.

For GT28 and GTX28 owners seeking maximum spool response without compromising turbine efficiency, this T3 .48 A/R housing with its 3″ GT V-Band exit and 81mm lip fitment delivers the performance advantage over conventional T25-flanged options.