Header Set 997.1 and 997.2 GT3 / RS - Catalytic Bypass - For OEM Exhaust

Our header/catalytics for the GT3 is aimed at those who are looking for more torque / horsepower in the mid range and top end, a rich, deep exhaust growl and most importantly durability. - high durability for track use. - for cars with OEM side mufflers - Manifold without catalytics. By reducing the back pressure up to 20 (15kw) crank hp and 13 (15NM) crank torque can be achieved on a 997.1 / 997.2 GT3/RS._x000B__x000B_This item may need to be sourced from Germany and would take 2-4 weeks to arrive. Once ordered it cannot be canceled. Please call to check stock or request expedited shipping.