Akrapovič’s Slip-On Line represents the first step in the exhaust system tuning process and the muffler can easily be installed onto the Porsche GT3’s original system. Built from hi-grade titanium and finished with two eye-catching double round tailpipes, this entry system makes the GT3 more powerful and lighter, and gives the car that unique Akrapovič sound, while still meeting ECE specifications.The mandatory tail pipe set TP-T/S/17/H needs to be ordered separately.The Slip-On system can be optionally combined with Link Pipe Set (Titanium) that retains stock headers and removes stock side mufflers, or it can be upgraded into a full Akrapovič exhaust system, either with combining it with Evolution Race Header Set without valves or Evolution Header Set with side mufflers and valves. If the system is upgraded with link pipe or evolution sets, the ECE type approval is not valid anymore.The look of this system can be further enhanced with the addition of the superbly handcrafted high-quality optional carbon- fibre rear diffuser in matte and high gloss finish to give even more exclusivity to the Porsche 911 GT3 (991.2).