ISR Performance Air Filter Intake Kit - Nissan 240SX 89-94 & S13 SR20DET

The ISR Performance Air Intake Filter Kit for the 1989-1994 Nissan 240SX (S13) and S13 SR20DET is a complete cone filter upgrade with the correct mass air adapter to bolt directly to the factory S13 MAF housing. High-quality aluminum top and bottom covers (not plastic like cheap alternatives) and a quality filter element designed for serious airflow.

What It Does

Replaces the factory airbox or weak pod-style filter setup with a properly sized cone filter and the correct mass air adapter for the S13 MAF flange. Simple bolt-on upgrade that opens up airflow and cleans up the engine bay. For builds that have stepped up to a Z32 MAF instead, see the matching ISR Performance Z32 Air Intake Filter Kit (IS-998PSC/IS-Z32MADADPT).

Fitment

• 1989-1994 Nissan 240SX (S13) with factory KA24E or KA24DE MAF
• Nissan SR20DET S13 with factory SR MAF

For Z32 MAF builds: Use the IS-998PSC/IS-Z32MADADPT kit instead. The adapter flange is different.

What's in the Box

• 1x Cone air filter
• 1x S13 mass air adapter

Product Details

Brand: ISR Performance

Part Number: IS-998PSC/IS-S13MAFADPT

Type: Cone Air Filter + MAF Adapter Kit

Vehicle Fitment: 1989-1994 Nissan 240SX (S13) and S13 SR20DET

MAF Compatibility: Factory S13 MAF housing (KA24E / KA24DE / SR20DET)

Top Diameter: 120mm

Bottom Diameter: 155mm

Inlet Diameter: 3 inches (76mm)

Filter Height: 3-5/8 inches (92mm)

Overall Height (with neck): 4-1/4 inches (108mm)

Cover Material: High-quality aluminum (top and bottom)

Sold: Complete kit (filter + adapter)

Legality: Off-road and competition use only