ISR Performance M-Spec Intercooler Core

The ISR Performance M-Spec Intercooler Core is a bar-and-plate replacement intercooler core sized to match the discontinued GReddy M-Spec front-mount intercooler. Direct replacement for builders running existing M-Spec piping who need a new core after damage, or for full custom intercooler builds using existing piping. Supports approximately 400 horsepower.

What It Does

The GReddy M-Spec front-mount intercooler was one of the most common bolt-on intercooler upgrades for SR20DET and KA24DE-T builds for over a decade, and lots of cars are still running M-Spec piping with original cores that have been damaged in accidents, hit by road debris, or simply aged out. Sourcing a new M-Spec is impossible since GReddy discontinued the part, but the core dimensions match a standard size that ISR can supply as a direct replacement.

Same physical dimensions as the original GReddy M-Spec core, so existing M-Spec piping and brackets bolt back up without modification. Same approximate 400 horsepower flow capacity.

Critical Note

This is the intercooler CORE ONLY. Intercooler piping is NOT included. This part is designed for two specific scenarios:

• Builders with existing M-Spec piping who need a new core after damage
• Custom intercooler builds reusing existing M-Spec-sized piping

If you're starting from scratch with no piping, you need a complete intercooler kit (core plus piping), not this replacement core alone.

Specifications

• Core size: H276mm x L600mm x W76mm
• Construction: Bar and plate
• Power capacity: Approximately 400 horsepower
• Compatibility: Identical dimensions to discontinued GReddy M-Spec core

Fitment

• Any build originally fitted with the GReddy M-Spec front-mount intercooler
• Custom builds using M-Spec-compatible piping

What's in the Box

• 1x ISR Performance M-Spec replacement intercooler core (bar and plate)

NOT included: Intercooler piping, brackets, hardware (reuse existing M-Spec piping)

Product Details

Brand: ISR Performance

Part Number: IS-S13ICCORE

Type: Front-Mount Intercooler Core (Replacement)

Replaces: Discontinued GReddy M-Spec intercooler core (identical dimensions)

Construction: Bar and plate

Core Dimensions: H276mm x L600mm x W76mm

Power Capacity: Approximately 400 horsepower

Piping Compatibility: M-Spec piping (reuse existing)

Piping Included: No - core only

Application: Replacement core for damaged M-Spec intercoolers, or custom builds with M-Spec piping

Sold: Core only

Legality: Off-road and competition use only