BLOX Racing’s Top Mount manifold (featured here) is available for Honda B-series engines and features a unique dual-pattern turbo inlet flange.  This industry-first will give the customer the choice of starting with a T3 turbo and later upgrading to a T4 without having to purchase a brand new manifold.

The manifold also features a V-band wastegate flange that will accommodate 44mm, 45mm and 46mm sizes from most popular brands.

Manifolds are constructed from Schedule 40 T304 stainless steel and TIG-welded.  The 11mm thick flanges provide additional strength and rigidity.  The 4-1 design provides equal pressures across each cylinder to ensure maximum flow and quicker spooling for larger turbos.  With this design, the turbo and related parts are easily accessible.

SPECIFICATIONS

• T304 stainless steel; Schedule 40
• Mandrel-bent tubing; TIG-welded
• T3 & T4 dual pattern open inlet flange
• 44mm-46mm wastegate V-band flange
• 11mm thick flanges
• 4-1 design; equal cylinder pressures
• Can accommodate up to T4 with H-cover
• Cannot use factory A/C
• Power steering bracket requires modification