The TiAL Sport GT28 .86 A/R stainless steel turbine housing provides a larger turbine A/R for GT28-series turbos, specified at .86 A/R. This housing changes exhaust-side flow characteristics to affect spool and midrange performance relative to smaller A/R housings. It’s a direct turbine housing option for builders aiming to tailor exhaust geometry on a GT28 platform.

TiAL Sport GT28 .86 A/R Stainless Steel Turbine Housing