Gravity Performance Exhaust Systems are designed in house to fit OEM mounting points for perfect fitment to your vehicle. Our Gravity Performance Exhausts greatly enhances the sound with a captivating exhaust note while also increasing performance. ---2.25" - 2.5" Bore throughout with twin 3.5" tailpipes ---Built in flexi joint helps reduce exhaust strain. ---Manufactured from mandrel bent T304 grade stainless steel ---Engineered to improve throttle response and increase power and torque across the entire RPM range ---A free flowing exhaust is a great way to get the best out of the 4 cylinder 2.0TFSI engine Compatible with: Audi TT MK2 8J 2.0TFSI 06-10 Models Please Note: Suitable for offroad & Track use only.