Akrapovic 09-17 Nissan 370Z Evolution Line Cat Back (SS) (Req. Tips)MFG# ME NI SS 1 The Evolution system for the 370Z uses the same muffler as the Slip On system. However, it also includes highflow link pipes with integrated resonators and a crossover tube that replace the entire exhaust system from the catalytic convertors back. Made of high grade stainless steel, this system is race inspired with a more aggressive character, louder but still perfectly acceptable for daily use with no droning to ruin the driving