Full titanium muffler kit Tomei Expreme Ti Subaru 02-07 wrx/wrx sti usdm Installation Instructions Please note that the installation process for the Tomei Expreme Ti Full Titanium Muffler Kit may vary based on the specific model year and variant of the Subaru WRX and WRX STI. It is essential to follow the manufacturer’s instructions provided … Continue reading Installation Instructions: Full titanium muffler kit Tomei expreme ti subaru 02-07 wrx/wrx sti usdm