K20/ kswap gate priority sidewinder manifold

Wastegate-Priority Sidewinder Manifold
Ultimate Boost Control. No Compromises.

Crafted from high-grade 304 stainless steel and featuring a CNC port-matched T3 turbo flange, this sidewinder manifold is built to give priority to the wastegate—not the turbo. The result? Exceptional boost control and zero boost creep, even under high-load tuning scenarios.

Proven Performance – Tuned by MK Performance
Installed on a K20-powered MR2 using our first-priority manifold, here’s what MK Performance had to say:

“The manifold is flowing really well. With a 4psi base spring, we maxed out the boost controller at 96% duty to make 15psi. Switched to a 7psi spring and carried on tuning, stopping at 17psi due to the 1000cc injectors nearing 93% duty. After road tuning, we headed to @devildevelopments for a dyno session and put down an impressive 519.3BHP at just 17psi—with zero boost creep.”
— MK Performance

Built to Perform. Built to Last.
304SS Construction – For strength and long-term reliability

CNC Port-Matched T3 Turbo Flange – Maximum efficiency and flow

Wastegate-Priority Design – Keeps boost steady and under control

Lifetime Repair Warranty – Confidence with every boost

Please Note:
Made to Order — Please allow up to 8 weeks from purchase

Due to the custom fabrication process, all sales on fabricated parts are final and non-refundable

Serious about boost control? Get the sidewinder that delivers.