ISR Performance S-Chassis LS Swap Y-Pipe

The ISR Performance S-Chassis LS Swap Y-Pipe is a fabrication-free exhaust solution for LS engine swaps into the 1989-1998 Nissan 240SX (S13 and S14). Bolts directly between ISR's "HGC" LS S-Chassis Swap Headers and the existing catback exhaust, eliminating the custom fabrication work usually required to mate LS-swap headers to a stock-style 240SX catback.

What It Does

LS-swapped 240SX builds traditionally require custom exhaust fabrication between the LS swap headers and any 240SX-style catback. This Y-pipe handles that mid-section in one off-the-shelf piece: 2-bolt flanges at the front mate to ISR's HGC headers, and the rear of the Y-pipe bolts to the front flange of a standard 240SX catback exhaust. Skip the fab shop, skip the custom downpipe build, bolt this in and run.

Critical Fitment Requirements

This Y-pipe is only guaranteed to fit with the complete ISR LS swap setup:

• ISR Performance LS Swap Mount Kit (required)
• ISR Performance HGC LS S-Chassis Swap Headers (required)
• 240SX catback exhaust with standard front flange

Different swap mounts, different LS swap headers, or non-ISR exhaust components will not produce a guaranteed bolt-on fit.

Fitment

• 1989-1994 Nissan 240SX (S13) with LS engine swap on ISR mounts and HGC headers
• 1995-1998 Nissan 240SX (S14) with LS engine swap on ISR mounts and HGC headers

What's in the Box

• 1x LS S-Chassis Swap Y-Pipe
• 3x 2-bolt gaskets

Product Details

Brand: ISR Performance

Part Number: IS-240LS-Y

Type: LS Swap Y-Pipe (Mid-Section)

Vehicle Fitment: 1989-1998 Nissan 240SX (S13/S14) with LS swap

Required Swap Components: ISR LS swap mount kit + ISR HGC LS S-Chassis swap headers

Front Flange: 2-bolt (mates to HGC headers)

Rear Flange: Standard 240SX catback front flange

Fitment Guarantee: Only guaranteed with complete ISR LS swap kit + HGC headers

Sold: Individually with gaskets

Legality: Off-road and competition use only