XTR Exhaust Porting Template
12A Exhaust Porting template
 
 
Disclaimer: This porting template is primarily intended for use in Naturally Aspirated (NA) and Turbo Racing engines. It is strongly recommended that the exhaust sleeve be completely removed to prevent the sleeve from being pushed into the turbocharger during operation. Proper installation and adherence to this guideline are crucial for optimal performance and to avoid potential damage to your engine and turbocharger system.