Performance, Sound, and Strength for Your SR Build

The Nissan SR20DET remains one of the most beloved turbo engines in tuner culture, powering everything from Silvia and 180SX drift cars to serious track builds. But while the SR20 has proven its potential for decades, one of its weakest points has always been the exhaust manifold.

Cracked factory cast manifolds, restrictive flow, and limited turbo compatibility have left countless SR owners searching for a better solution. That’s where the SSS SR20DET Exhaust Manifold comes in. Built from high-quality stainless steel, TIG welded in-house, and designed to keep the stock turbo location with a T2 flange, this manifold combines durability, performance, and versatility—all while giving your build the aggressive sound it deserves.

Why Upgrade Your SR20 Exhaust Manifold?

The OEM manifold works fine for stock power levels, but once you start tuning, its limitations show quickly.

Problems with Stock or Low-Quality Manifolds:

• Cracking: OEM cast manifolds often crack after repeated heat cycles.

• Flow Restriction: The narrow design limits turbo efficiency at higher boost.

• Turbo Fitment Issues: Many aftermarket options don’t line up cleanly with common turbo setups.

• Inconsistency: Cheap aftermarket manifolds often warp or fail under heavy use.

For an engine as widely tuned as the SR20DET, a strong, reliable manifold is a foundation piece—not just an accessory.

Key Features of the SSS SR20DET Manifold

• Material: 347 stainless steel for superior durability and heat resistance.

• Welding: TIG welded in-house for precision and long-term reliability.

• Flange: Factory-style T2 turbo flange, compatible with GTX, GT, and T28 setups.

• Turbo Location: Replicates stock turbo placement for straightforward fitment.

• Compatibility: Works with most aftermarket elbows and downpipes.

• Wastegate Options: Supports both internal and external wastegates.

• Complete Kit: Includes wastegate dump tube, installation hardware, and header/turbo gaskets.

This isn’t just another manifold—it’s a purpose-built upgrade designed to meet the needs of real-world SR20 enthusiasts.

Internal vs External Wastegate Compatibility

One of the standout features of the SSS SR20 manifold is its flexibility with both internal and external wastegate setups.

• Internal Wastegate: Maintains a more OEM-style turbo system, keeping things simple and compact.

• External Wastegate: Offers more precise boost control, prevents boost creep, and supports higher power levels.

By offering compatibility with both, the manifold adapts to your build—whether you’re running a simple T28 setup or a bigger GTX turbo on external gate.

Performance Benefits

Upgrading to the SSS manifold isn’t just about reliability—it’s about unlocking performance.

• Improved Flow: Smoother runners allow the turbo to spool more efficiently.

• More Power: Reduced restriction means higher potential horsepower at the same boost levels.

• Better Response: Sharper throttle and turbo spool for both street and track use.

• Aggressive Sound: Stainless construction and tuned runner design deliver that iconic SR tone with more volume and bite.

Build Quality Matters

Cheap manifolds flood the market, but they don’t last. The SSS SR20DET Exhaust Manifold is designed to endure real-world abuse.

• 347 Stainless Steel: Stronger and more heat-resistant than common 304 stainless.

• TIG Welding: Ensures consistent weld penetration and strength.

• In-House Fabrication: Built and tested under Select Speed Shop standards, not outsourced.

This isn’t a throwaway part—it’s built for years of hard driving, drifting, and track use.

Fitment and Installation

• Designed For: SR20DET engines (S13, S14, and S15 applications).

• Turbo Fitment: GTX, GT, T28, and most stock-location T2 turbochargers.

• Downpipe Compatibility: Fits most aftermarket elbows and downpipes.

• Included Hardware: Gaskets and installation hardware included for a hassle-free install.

• Wastegate Dump Tube: Supplied in the kit for external wastegate setups.

Direct fit, straightforward install, and no hunting for extra hardware—everything you need is in the box.

Ideal Builds for the SSS SR20DET Manifold

• Street Cars: Durable upgrade that won’t crack under daily driving and occasional spirited runs.

• Drift Cars: Withstands the abuse of repeated clutch kicks, heat cycles, and high-RPM driving.

• Track Cars: Consistent flow and strength for sustained power during long sessions.

• Turbo Upgrades: Perfect for T28, GT, or GTX setups with stock-style turbo positioning.

No matter how you build your SR20, this manifold is built to support it.

Why Choose SSS?

At Select Speed Shop, we know performance parts because we test them ourselves. The SSS product line is designed in-house, fabricated with precision, and built to perform under the harshest conditions.

• Track Tested: Real-world testing ensures parts perform on and off the track.

• In-House Fabrication: Hands-on craftsmanship with no shortcuts.

• Community Driven: Built by enthusiasts, for enthusiasts.

The SR20DET manifold is just one example of SSS’s commitment to creating reliable, high-performance solutions for serious builds.

Final Thoughts

The SSS SR20DET Exhaust Manifold is the perfect blend of performance, reliability, and versatility. Built from 347 stainless steel, TIG welded in-house, and compatible with both internal and external wastegates, it’s designed to handle everything from daily driving to track abuse. With a stock-location T2 flange and compatibility with common turbo and downpipe setups, it makes upgrading straightforward without sacrificing strength.

If you’re tired of cracked manifolds, inconsistent fitment, or restrictive designs holding your SR20 back, it’s time to step up to a manifold built the right way.

👉 Ready to unleash your SR20? Order the SSS SR20DET Exhaust Manifold from Select Speed Shop →