Infiniti Q45 1990-1996 Exhaust Specifications

The exhaust system for the 1990-1996 Infiniti Q45 is specifically designed for this model and year range. While some components may share similarities with other Infiniti models, compatibility is not guaranteed. Always verify part numbers and specifications before purchasing or installing to ensure proper fitment and performance.

Regular maintenance for the exhaust system includes inspecting for rust, cracks, or leaks, especially in high-moisture environments. Check the exhaust hangers and mounts for wear and replace them if necessary. Additionally, ensure the catalytic converter and muffler are functioning properly. A professional inspection every 12-24 months is recommended to maintain optimal performance and longevity.

To replace the exhaust system, first, safely lift the vehicle using a jack and secure it on jack stands. Remove the old exhaust components, starting from the muffler and working forward to the catalytic converter. Install the new system in reverse order, ensuring all gaskets and bolts are properly tightened. Use a torque wrench to secure connections to manufacturer specifications. Test for leaks after installation.

Unusual noises from the exhaust system, such as rattling or hissing, often indicate loose components, leaks, or damaged parts. Inspect the exhaust hangers, gaskets, and connections for wear or looseness. Check for holes or cracks in the pipes, muffler, or catalytic converter. Tighten or replace components as needed. If the issue persists, consult a professional mechanic for further diagnosis.

To optimize performance, consider upgrading to a high-flow catalytic converter or performance muffler. Ensure the exhaust system is free of restrictions and leaks. Regularly clean and inspect the system to prevent rust and corrosion. Properly tuned exhaust systems can improve engine efficiency and power output. Always follow manufacturer guidelines for modifications to avoid voiding warranties or causing damage.