Exhaust Header for Mitsubishi Eclipse Eagle Talon (1990-1994) 2.0L

High-Flow Stainless Exhaust Header for 1990-1994 Mitsubishi Eclipse and Eagle Talon

What it Does: The Performance Exhaust Header replaces the restrictive factory cast-iron manifold on the 1990-1994 Mitsubishi Eclipse and Eagle Talon 2.0L to accelerate exhaust gas velocity and scavenge cylinders more efficiently.

The Stock 1G DSM Cast Manifold Failure Points

The original factory cast-iron exhaust manifold found on first-generation 1G DSM platforms suffers from severe thermal fatigue and internal flow disruption. Continuous heat cycling causes structural brittleness, frequently leading to stress fractures along the runner junctions and collector neck. Furthermore, uneven runner lengths and rough interior casting surfaces introduce turbulent backpressure directly against the exhaust ports of the 4G63 naturally aspirated engine, choking exhaust scavenging and compounding heat soak in the cylinder head.

The Engineering Solution

Fabricated from semi-polished mandrel-bent stainless steel, this performance exhaust header eliminates turbulence through smooth, uniform-radius primary tubing. The mandrel-bent design preserves cross-sectional volume throughout every bend, maximizing gas velocity and optimizing pulse pairing for superior scavenging dynamics. Precision-machined, thick-flange interfaces provide a warp-resistant seal against the cylinder head, preventing high-temperature exhaust leaks. By shedding significant weight compared to heavy OEM cast iron and incorporating a dedicated O2 sensor bung, this header delivers a true direct-fit bolt-on solution engineered for high thermal tolerance and sustained power output.

Technical Specifications

Compatibility

• 1990 Mitsubishi Eclipse 2.0L Naturally Aspirated
• 1991 Mitsubishi Eclipse 2.0L Naturally Aspirated
• 1992 Mitsubishi Eclipse 2.0L Naturally Aspirated
• 1993 Mitsubishi Eclipse 2.0L Naturally Aspirated
• 1994 Mitsubishi Eclipse 2.0L Naturally Aspirated
• 1990 Eagle Talon 2.0L Naturally Aspirated
• 1991 Eagle Talon 2.0L Naturally Aspirated
• 1992 Eagle Talon 2.0L Naturally Aspirated
• 1993 Eagle Talon 2.0L Naturally Aspirated
• 1994 Eagle Talon 2.0L Naturally Aspirated

Frequently Asked Questions

Does this fit the 1G Eclipse,Talon?
Yes, this is a direct fit for the 1990-1994 Mitsubishi,Eagle Eclipse,Talon equipped with the 4G63 engine.

Do I need to retorque the manifold hardware after installation?
Yes, you should always heat-cycle the engine to operating temperature and retorque all flange fasteners to prevent gasket blowout.

The 1G DSM Performance Standard

Engineered specifically for the iconic Japanese sport compact chassis, this header delivers the crisp, aggressive exhaust note and high-rpm breathing efficiency that vintage DOHC tuners demand.