Advance Headers | Stainless Steel Exhaust Extractors | Mitsubishi L300 SWB EFI 1987-2001 | A341iSS
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Advance Headers | Stainless Steel Exhaust Extractors | Mitsubishi L...
Description
Description
Advance Headers High-Performance Premium Stainless Steel Exhaust Extractors for Mitsubishi L300 SWB EFI (1987-2001) Engines
The Advance Headers Stainless Steel Performance Exhaust Extractors (A341iSS) represent the premium, ultra-durable iteration of the high-flow header assembly for the third-generation Mitsubishi L300 Short Wheelbase (SWB) commercial vans and troop carriers running fuel-injected engines. Specially manufactured from high-grade stainless steel to deliver superior structural longevity, outstanding corrosion resistance, and a striking high-end finish under the cab, this kit is configured explicitly to accommodate Electronic Fuel Injection (EFI) emissions tracking infrastructure. Featuring an integrated oxygen (O2) sensor mounting bung, it drops down seamlessly to connect with your factory catalytic converter pipeline, maximizing exhaust gas scavenging velocity to unlock vital low-to-mid range working torque.
PRODUCT CONTENTS:
- 1 x Premium Stainless Steel Performance Exhaust Extractor Header Assembly
- 1 x Integrated Pre-Welded Oxygen (O2) Sensor Bung
Key Features:
- High-grade stainless steel construction provides maximum defense against under-car atmospheric moisture rust, road grime oxidation, and harsh commercial heat cycles
- Equipped with a precision-placed oxygen (O2) sensor fitting to maintain perfect integration with the factory ECU injection fuel mapping out of the box
- Tuned mandrel-bent primary piping pathways ensure completely uniform internal flow geometry, optimizing gas velocity and eliminating heavy factory casting restrictions
- Substantially optimizes low-to-mid range torque delivery—ideal for moving heavy cargo loads, commercial delivery routes, and maintaining highway cruising efficiency
- Thick, precision laser-cut cylinder head flanges maintain a flat, ultra-stable mating footprint to permanently guard against face distortion, thermal warping, and high-pressure exhaust leaks
Specifications:
- Brand: Advance Headers
- Part Number: A341iSS
- Material: High-Grade Stainless Steel
- Engine Suitability: Mitsubishi 4-Cylinder Petrol EFI (4G63 / 4G64 SOHC Engine Variant Families)
- Oxygen Sensor Fitting: Yes (Pre-Welded Threaded Bung)
- Chassis Suitability: Short Wheelbase (SWB) Models Only
- Component Type: Premium Performance Exhaust Extractors / Headers
- Estimated Fitting Time: 2 Hours
- Welding Required: No (Direct Bolt-On Layout)
⚠️ Crucial Cylinder Head Port & Flange Compatibility Warnings:
1. Oval Port & 9-Stud Exclusion: This product will STRICTLY NOT FIT models optioned with oval exhaust ports and 9-stud cylinder head patterns. It is engineered explicitly for the standard round/symmetrical port configuration layout. Please check your existing engine casting and bolt count prior to purchasing.
2. Wheelbase Profile Mapping: Configured precisely to clear the floor pan, handbrake linkages, and gear selector cables found on Short Wheelbase (SWB) configurations. Long Wheelbase (LWB) vans or flat-deck models should verify under-cab tracking pathways before purchase.
Please Note: Professional installation by an exhaust specialist or qualified commercial mechanic is highly recommended to guarantee proper system alignment and a perfect leak-free seal.
Important Information
- The image shown may not reflect the actual product design.
- Ensure your vehicle details match the application guide below before purchasing.
Vehicle Applications for A341iSS Premium Stainless Steel Extractors
| Make | Model | Year Range Spec | Body Type | Chassis Series | Engine Details | Fitting Time | Drivetrain / Fitment Notes |
|---|---|---|---|---|---|---|---|
| Mitsubishi | L300 / Express / Starwagon | 1987 – 2001 | Short Wheelbase (SWB) Commercial Van / People Mover | SF / SG / SH / SJ Series Only | 2.0L & 2.4L 4-Cylinder Petrol EFI (SOHC Round Port Only) | 2.0 Hours | RWD | Premium stainless steel upgrade path. Routes safely past transmission linkages under the cab floor. Pre-fitted with O2 sensor bung and drops directly down to the factory catalytic converter pipe. Does not match 9-stud oval port heads. |
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