Walton Motorsport SR20 Top Mount Exhaust Manifold For Nissan Silvia S13 S14 S15

One of the highest-quality manifolds on the market today! JDMGarageUK has gone out of the way to work with the best people to give you the absolute best! 

There’s no shortage of Nissan SR20 exhaust manifolds available. The construction methods used set this product apart from all others. 

Material Selection

First and foremost not all 304 Stainless steel is created equal. We carefully select the exact specifications of the tube that we use. The use of a poor-quality tube can compromise the whole design. For Instance, exhaust manifolds experience repeated high-temperature cycles. In these situations, we have seen poor tubing split along the seam. Designed the head flanges in-house. However, we outsource the precision Fiber Laser Cutting. The use of more modern Fiber Laser cutting allows for increased accuracy over traditional laser cutting

Processes
Where the manifold meets the exhaust ports, Walton Motorsport’s process is to push the tubing through the head flange and TIG weld each side. This process is followed by a selection of finishing tools. We do this to create a smooth port for the gasses to freely flow through. Consequently, this process dramatically increases the durability of the manifold, rather than using the traditional method of welding the tube to the face of the flange. Moreover, our approach also solves the problem of an oval port needing to transition smoothly to a round tube. The stubs process, in short, helps increase power through the improved flow.

New for 2024 and onwards
The centerpiece of the manifold is the brand-new cast collector. The latest collector design features the highest wastegate flow we have ever achieved on a merge collector, all without compromising on power-reducing turbulence and high EGTs. This is achieved by sourcing exhaust gasses from a wider opening with the smoothest possible transitions. The casting process allows for a seamless design, preventing any break up of the collector and eliminating potentially harmful turbo and engine failures.

NISSAN SR20 EXHAUST MANIFOLD FEATURES

• Carefully selected 304 Stainless steel tubes. Working to eliminate the risk of material failure.
• Fully Purged welded. Subsequently improving gas flow leads to increases in power and lowered response times.
• Ported Merge Collector Welded Internally and Externally. Resulting in high strength, durability, and turbo lifespan.
• Curved wastegate port design developed with leading engine tuners to allow high control and remove boost creep.
• Fully Smoothed Head Ports designed to optimize gas flow. As a result, it provides an increase in power and lowered response times.
• Optimized for use with a Turbosmart Hyper Gate 45.
• Compatible with ABS Equipped cars (including S15)

Got any questions or feedback about these manifolds? can't find a product you need? Email [email protected]

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