The SpeedFactory Racing K-Series Sidewinder Turbo Manifold was designed to spool medium to large-sized turbos very quickly, producing broad powerbands that carry to the top of the RPM range. This manifold is for applications where large torque and great spool are necessary alongside big top-end horsepower, making it suitable for road race and drag race vehicles.

SpeedFactory's Sidewinder is constructed from high quality 1.5” Schedule 40 stainless steel, and is TIG-Welded and back purged to ensure that you are receiving the highest quality product possible. Their cylinder head, wastegate, and turbine inlet flanges are CNC machined from ½” plate 1018 Steel and all mating surfaces are machined flat ensuring a perfect seal.

Older Manifold Thread Pitch for Turbo to Manifold - 3/8-16

Current Thread Pitch for Turbo to Manifold - M10x1.5

This manifold was designed to fit K-Series and K-Swapped vehicles, and verified fitments include:

EF, EG, EK, and DC chassis with K-Series Engines

06+ Civic Si

EP3 Civic

RSX

TSX