ISR Performance Stainless Steel Downpipe - Nissan 240SX KA-T

The ISR Performance KA-T Stainless Steel Downpipe is the extended-length 3" stainless downpipe purpose-built for KA-T builds running SR-style bottom-mount T25/T28/GT2871 GT-discharge turbo setups. Solves the most common KA-T downpipe headache: stock-length SR downpipes leave you short on the KA, forcing you to cut the floor pan for clearance. This one is sized to clear the floorboard cleanly.

What It Does

SR-style KA-T builds (where you're running a turbo and exhaust manifold pattern designed around the SR, with the SR O2 elbow adapted onto the KA) run into a length problem with standard SR downpipes. The SR downpipe is the right diameter and flange, but it ends in the wrong place once installed on a KA, leaving you to either cut the floor pan for clearance or fabricate an extension. The ISR KA-T downpipe is built longer specifically for this combination, so it routes cleanly from the GT-discharge turbo outlet through the SR O2 elbow with proper floorboard clearance. Not a turbo-back system. this is the downpipe section only and still requires an SR O2 elbow upstream.

Fitment

Designed for:

• Nissan 240SX KA24DE with KA-T conversion
• Bottom-mount T25, T28, or GT2871 GT-discharge turbos
• SR-style exhaust path using an SR O2 elbow

Requires an SR O2 elbow (sold separately). This downpipe is not a complete turbo-back system.

What's in the Box

• 1x 3" stainless steel extended downpipe
• Gaskets and hardware

Product Details

Brand: ISR Performance

Part Number: IS-SSDP-NKAT

Type: Stainless steel downpipe (extended length)

Diameter: 3"

Engine: Nissan KA24DE with KA-T conversion

Vehicle Fitment: Nissan 240SX with KA-T setup

Compatible Turbos: T25, T28, GT2871 (bottom-mount, GT discharge)

Exhaust Path: SR-style with SR O2 elbow

Required (sold separately): SR O2 elbow

Scope: Downpipe section only (not turbo-back)

Sold: Individually (with gaskets and hardware)

Legality: Off-road and competition use only