Forced Performance HD5588 Turbo T6 1.24 A/R Black Turbine Housing w/Outlet Flg Clamp Kit (D/S Only)

If you're building a high-horsepower street or track car that needs serious airflow, a larger turbine housing like this one from Forced Performance is a key component. This HD5588 housing is designed to work with specific turbocharger models, helping to manage exhaust gas flow and dictate the turbo's spool characteristics and top-end power potential. The 1.24 A/R ratio is on the larger side, meaning it's intended for applications where maximizing airflow at higher RPMs is the priority, often paired with larger engine displacements or higher boost levels.

This particular housing is constructed from a durable cast iron material, finished in black for a clean look and some added corrosion resistance. It features a T6 inlet flange, which is common on larger turbos, and comes complete with an outlet flange and clamp kit. This ensures you have the necessary hardware to connect it to your downpipe. The 'D/S Only' designation indicates it's for the Downstream side, meaning it's the part that bolts directly to the turbocharger's compressor housing and connects to your exhaust system. Keep in mind that this part is not CARB approved and cannot be shipped to California.

When selecting a turbine housing, the A/R ratio is critical. A lower A/R will spool faster but might choke off flow at higher RPMs, while a higher A/R like this 1.24 will delay spool slightly but allow the turbo to breathe more freely at the top end, supporting higher peak horsepower. This housing is a solid choice for those pushing the limits of their forced induction setup and looking for a robust, well-made component to handle the demands.