Why does my 04 ch lancer make a tinny noise after fitting extractors?

A tinny noise after fitting extractors on your 2004 Lancer could be due to several factors. Common causes include improper fitting or alignment of the extractors, which can lead to exhaust leaks and vibrations. Additionally, the material and design of the extractors may amplify certain sounds, causing a tinny resonance. It's advisable to check for leaks and ensure all connections are secure and properly torqued.