1.16 A/R T3 DIVIDED Turbine Housing for GTW3684 (GTW6262) 3″ 4-bolt Exit

Built for enthusiasts running the Garrett GTW3684 platform who demand precise exhaust energy management, this 1.16 A/R divided turbine housing delivers the twin-scroll advantage serious builds require. Engineered to bolt directly onto both journal bearing and ball bearing GTW3684 configurations, it’s the housing of choice for anyone chasing reduced turbo lag without sacrificing top-end capability. Whether you’re finalizing a new turbo build or upgrading an existing GTW3684 setup, this housing offers the flexibility and performance foundation serious applications demand.

Specifications

• Housing Type: Divided (Twin Scroll / Twin Entry)
• Flange: T3
• A/R Ratio: 1.16
• Exit Size: 3″ GT 4-bolt
• Compatible Turbo: Garrett GTW3684 (GTW6262)
• Bearing Compatibility: Journal Bearing and Ball Bearing versions

Performance & Application

This divided T3 turbine housing is purpose-built for the GTW3684 turbo family, splitting exhaust pulses across separate scrolls to improve turbine efficiency and spool response compared to a non-divided design. It’s suited to performance builds where maximizing exhaust energy and minimizing lag are priorities, without compromising the turbo’s ability to make strong top-end power. Because it fits both journal bearing and ball bearing GTW3684 variants, it works whether you’re running a cost-conscious journal bearing setup or a ball bearing unit for maximum response.

Compatibility & Fitment

• Garrett GTW3684 (aka GTW6262) journal bearing version
• Garrett GTW3684 (aka GTW6262) ball bearing version

Frequently Asked Questions

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

This turbine housing has a 1.16 A/R ratio.

What does “divided” mean for this housing?

Divided is also known as twin scroll or twin entry, referring to the housing’s separated exhaust passages.

Does this housing work with both journal bearing and ball bearing GTW3684 turbos?

Yes, this housing is compatible with both the journal bearing and ball bearing versions of the Garrett GTW3684 (GTW6262).

What does GTW6262 refer to?

GTW6262 is an alternate name (alias) for the Garrett GTW3684 turbocharger.

Can the 4-bolt exit be converted to a v-band?

Yes, there is an option to weld a 3″ v-band on top of the 4-bolt exit at no charge, or you may use product code ATP-FLS-028 to bolt on and convert the outlet from a 3″ 4-bolt to a 3″ v-band.

For GTW3684 (GTW6262) owners who need a divided housing capable of handling both bearing configurations, this 1.16 A/R T3 housing delivers the exhaust-side performance and flexibility to match your build’s demands.