Honda EF series Top Mount Manifold
This was our first manifold we developed almost 8 years ago, and still remains the most popular today. We've had several customers make over 600whp all while being stuffed in the small CRX/EF engine bay.
The manifold will fit up to a T3/T4 turbo with a Garrett style āSā housing with a 4ā inlet. It comes standard with a 38mm wastegate flange, while a 44mm V-band flange is an option. The wastegate is mounted under the runners of the manifold for clearance, which requires the use of an aftermarket traction bar for (I highly reccomend the Full-Race unit).
This manifold can be built for a D series or B series engine.
Specs:
- Schedule 40 304 stainless steel piping
- CNC milled mild steel flanges
- TIG welded by hand and backpurged for a clean contamination free weld.
- Guaranteed to fit, and warrantied for life to the origional owner!












