ISR Performance 3 Bolt Downpipe Gasket - Nissan SR20DET

The ISR Performance 3-Bolt Downpipe Gasket is a replacement exhaust gasket for the connection between the O2 housing and the downpipe on the Nissan SR20DET. The right replacement when the factory gasket has crushed, the original is missing from a used engine, or you're refreshing the turbo exhaust connection during a rebuild or upgrade.

What It Does

The 3-bolt flange between the O2 housing (turbine outlet) and the downpipe sees hot exhaust gas under pressure. Even a small gasket failure here means an exhaust leak that's loud, dirty, and hot enough to damage nearby components. Gaskets crush over time and don't reseal correctly after disassembly, so any time you separate this flange (for downpipe swap, turbo install, exhaust upgrade), the gasket should be replaced.

Fitment

• Nissan SR20DET (S13, S14, S15)
• Connection: O2 housing (turbine outlet) to downpipe
• Flange: 3-bolt SR20DET pattern

What's in the Box

• 1x ISR Performance 3-bolt downpipe gasket

Product Details

Brand: ISR Performance

Part Number: IS-3BLT

Type: Exhaust Gasket (3-Bolt)

Engine Fitment: Nissan SR20DET

Location: Between O2 housing and downpipe

Flange Pattern: 3-bolt SR20DET

Sold: Individually

Legality: Off-road and competition use only