Mitsubishi Mitsubishi Galant 2004-2012 Exhaust Specifications

The exhaust system for the 2004-2012 Mitsubishi Galant is designed to fit all trim levels, including the DE, ES, SE, and Ralliart models. However, slight variations may exist based on engine type (2.4L I4 or 3.8L V6) and emissions standards. Always verify compatibility by cross-referencing the part number with your vehicle's specifications or consulting a professional technician.

Regular maintenance of the exhaust system includes inspecting for rust, leaks, and loose components every 12,000 miles. Ensure the catalytic converter, muffler, and exhaust pipes are in good condition. Replace worn gaskets and hangers as needed. Avoid driving through deep water to prevent internal corrosion. Adhering to this schedule ensures optimal performance and longevity of the exhaust system.

To replace the exhaust system, first, safely lift the vehicle using a jack and stands. Remove the old exhaust by detaching the bolts at the manifold and hangers. Install the new system, starting at the manifold and securing it with new gaskets and bolts. Ensure all hangers are properly attached and the system is aligned. Tighten all connections and check for leaks before lowering the vehicle.

Unusual noises from the exhaust system, such as rattling or hissing, often indicate loose components, leaks, or damaged parts. Inspect the hangers, gaskets, and pipes for wear or misalignment. Tighten or replace loose parts as needed. If the issue persists, check the muffler and catalytic converter for internal damage. Consult a professional if the problem cannot be resolved.

To optimize performance, consider upgrading to a high-flow catalytic converter or performance muffler. Ensure the exhaust system is free of leaks and properly aligned. Regularly clean and inspect the system to prevent corrosion. Additionally, pairing the exhaust with a compatible cold air intake can enhance airflow and overall engine efficiency, improving horsepower and fuel economy.