Developed jointly by Silkroad Co., Ltd. and 3UP Mikami Auto, this SR20DE naturally aspirated exhaust manifold was created with a clear goal: deliver the performance benefits of a long-tube 4-2-1 design while achieving the aggressive appearance of a turbo manifold.
Designed to improve low and mid-range torque, the equal-length runners promote smoother exhaust flow and enhanced engine response, making it an ideal upgrade for street and circuit-driven SR20DE-powered vehicles.
Features
* Jointly developed by Silkroad and Mikami Auto * 4-2-1 equal-length runner design * Optimized for improved low to mid-range torque * High-quality stainless steel construction * Runner diameters: 44mm → 50mm → 64mm * Distinctive turbo-style manifold appearance
Vehicle Compatibility
Suitable for naturally aspirated SR20DE engines found in:
- Nissan Silvia S15 - Nissan Silvia S14
Please note that fitment has only been physically tested on the S15 Silvia. Based on the manifold’s design, installation on S13, S14, and 180SX models is expected to be possible with modification to at least the following: - emissions EGR delete/modification - existing breather lines - oil drains from the rocker cover - M18x1.25 O2 Bung installed (if your car has the smaller 7/16" fine thread O2 sensor you will require an adapter)
Made to order, please allow 2–3 business days for dispatch if in stock otherwise wait time may be up to 3 months.
