ISR Performance V2 Tubular Exhaust Turbo Manifold - Nissan SR20DET S13/S14

The ISR Performance V2 Tubular Exhaust Turbo Manifold is a SUS304 stainless steel bottom-mount turbo manifold for the Nissan SR20DET in S13 and S14 chassis. Built with thicker SUS304 than most other bottom-mount manifolds on the market, designed to handle higher power levels and last longer than OEM replacement-style manifolds.

What It Does

The factory cast SR20DET manifold cracks and warps under sustained high-boost use. OEM-replacement-style manifolds (cast or thin-tube) fix the cracking issue temporarily but often fail again on built engines. The ISR V2 tubular manifold uses thicker SUS304 stainless steel than competing bottom-mount tubular options, which gives it the structural strength to handle higher-horsepower builds without the cracking failure mode that plagues this category.

If you're building an SR20DET for serious power and want a manifold that won't fail mid-season, this is a step up from the OEM-replacement options without the cost of a fully custom or top-mount tubular manifold.

Installation Note

On some T25 or T28 stock turbos, you may need to clock the turbo slightly to clear the larger runners on this manifold. The thicker, larger runners that give the V2 its strength advantage are physically bigger than OEM, which can require minor turbo clocking for proper clearance.

Fitment

• Nissan SR20DET (S13 and S14)

Bottom-mount configuration. For top-mount setups, see the ISR RamHorn Top Mount Turbo Manifold line.

Compatibility Notes

• Bottom-mount turbo position
• SR20DET engine (S13 and S14 variants)
• Compatible with T25, T28, and T28-family turbos (minor clocking may be required)

What's in the Box

• 1x ISR Performance V2 SUS304 tubular bottom-mount turbo manifold

Product Details

Brand: ISR Performance

Part Number: IS-SSH-NS13V2

Type: Tubular Bottom-Mount Turbo Manifold (V2)

Vehicle Fitment: Nissan 240SX (S13 and S14) with SR20DET

Engine: Nissan SR20DET

Turbo Configuration: Bottom-mount

Material: SUS304 stainless steel (thicker than most competing tubular manifolds)

Turbo Compatibility: T25, T28, and T28-family (may require slight turbo clocking on stock T25/T28)

Application: Higher-horsepower SR20DET builds where OEM-replacement manifolds aren't durable enough

Sold: Individually

Legality: Off-road and competition use only