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Home > Exhaust Header & Downpipe for 1991-1994 Nissan 240SX S13 JDM 2.4L
SPELAB stainless exhaust header and downpipe kit for 1991-1994 Nissan 240SX S13 KA24DE 2.4L, mirror-polished 4-into-1 collector, 4-bolt manifold flange, catless 2-bolt downpipe, MLS gasket, hardware, and branded box.
Stainless steel exhaust header for 1991-1994 Nissan 240SX S13 KA24DE 2.4L, mirror-polished 4-into-1 primary tubes merging into a collector with O2 bung, 4-bolt manifold flange, and 2-bolt downpipe outlet.
Catless stainless steel downpipe for 1991-1994 Nissan 240SX S13 KA24DE 2.4L exhaust header set, mirror-polished straight-through pipe with TIG welds and 2-bolt flanges on both ends.
Mirror-polished SPELAB exhaust header for 1991-1994 Nissan 240SX S13 KA24DE 2.4L, showing 4-bolt manifold flange, individual primary tubes, welded O2 bung, and collector transitioning to the 2-bolt downpipe flange.
Stainless exhaust header for 1991-1994 Nissan 240SX S13 KA24DE 2.4L shown from the collector side, with 4-bolt manifold flange at the base, sweeping primary tubes, O2 bung, and 2-bolt downpipe outlet flange.
Multi-layer steel header gasket included with the SPELAB exhaust header and downpipe set for 1991-1994 Nissan 240SX S13 KA24DE 2.4L, four ports with dimpled sealing beads and bolt holes.
Flange mounting hardware kit for the SPELAB exhaust header and downpipe on 1991-1994 Nissan 240SX S13 KA24DE 2.4L, five zinc-plated hex bolts and matching flange nuts for a direct bolt-on install.
SPELAB stainless exhaust header and downpipe kit for 1991-1994 Nissan 240SX S13 KA24DE 2.4L, mirror-polished 4-into-1 collector, 4-bolt manifold flange, catless 2-bolt downpipe, MLS gasket, hardware, and branded box.
Stainless steel exhaust header for 1991-1994 Nissan 240SX S13 KA24DE 2.4L, mirror-polished 4-into-1 primary tubes merging into a collector with O2 bung, 4-bolt manifold flange, and 2-bolt downpipe outlet.
Catless stainless steel downpipe for 1991-1994 Nissan 240SX S13 KA24DE 2.4L exhaust header set, mirror-polished straight-through pipe with TIG welds and 2-bolt flanges on both ends.
Mirror-polished SPELAB exhaust header for 1991-1994 Nissan 240SX S13 KA24DE 2.4L, showing 4-bolt manifold flange, individual primary tubes, welded O2 bung, and collector transitioning to the 2-bolt downpipe flange.
Stainless exhaust header for 1991-1994 Nissan 240SX S13 KA24DE 2.4L shown from the collector side, with 4-bolt manifold flange at the base, sweeping primary tubes, O2 bung, and 2-bolt downpipe outlet flange.
Multi-layer steel header gasket included with the SPELAB exhaust header and downpipe set for 1991-1994 Nissan 240SX S13 KA24DE 2.4L, four ports with dimpled sealing beads and bolt holes.
Flange mounting hardware kit for the SPELAB exhaust header and downpipe on 1991-1994 Nissan 240SX S13 KA24DE 2.4L, five zinc-plated hex bolts and matching flange nuts for a direct bolt-on install.

Exhaust Header & Downpipe for 1991-1994 Nissan 240SX S13 JDM 2.4L

$220.00
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Description Installation Guide FAQ Shipping & Returns

This Catless (header & downpipe) Nissan 240SX S13 KA24DE 2.4L I4 (JDM) downpipe replaces the factory downpipe for increased exhaust flow. Engineered for Nissan, it’s a direct bolt-on upgrade that delivers a more aggressive exhaust note and small power gain.

Who This Is For

1989-1994 Nissan 240SX S13 JDM owners with the KA24DE 2.4L I4 engine who want a complete stainless steel header + downpipe for increased exhaust flow and a more aggressive note.

Key Features

  • Complete header + downpipe combination for direct bolt-on
  • Stainless steel construction with mirror polish
  • Each cylinder gets its own tube — eliminates back-pressure
  • Direct bolt-on, no modification needed
  • Replaces restrictive factory exhaust manifold

Product Specifications

  • Engine: Nissan KA24DE 2.4L I4 (JDM S13)
  • Application: Exhaust Header + Downpipe
  • Material: Stainless Steel
  • Surface: Mirror Polish
  • Configuration: Catless (header + downpipe)
  • Flange Type: Bolt-on (4-Bolt manifold flange + 2-Bolt downpipe flange)
  • Certificate: ISO9001:2000
  • Weight: 8.20 kg (8200 g)

What's Included

  • Header
  • Downpipe
  • Gasket(s)
  • Mounting hardware

Check Before Choosing

  • Engine variant: Fits KA24DE 2.4L I4 in the 1989-1994 S13 chassis (JDM spec). USDM S13 may differ — verify.
  • No tuning needed: Naturally aspirated engine — no tuning required.
  • Header benefit: Eliminates the back-pressure of the factory exhaust manifold, giving each cylinder its own tube.
  • Street legality: Off-road / race use only. Check local laws.

Vehicle Fitment

Compatible vehicles: Nissan 240SX S13 (1989–1994).

Year Make Model Engine Chassis
1989 Nissan 240SX S13 KA24DE 2.4L I4 (JDM) S13
1990 Nissan 240SX S13 KA24DE 2.4L I4 (JDM) S13
1991 Nissan 240SX S13 KA24DE 2.4L I4 (JDM) S13
1992 Nissan 240SX S13 KA24DE 2.4L I4 (JDM) S13
1993 Nissan 240SX S13 KA24DE 2.4L I4 (JDM) S13
1994 Nissan 240SX S13 KA24DE 2.4L I4 (JDM) S13