AWE Tuning Mercedes-Benz W205 C450 AMG / C400 Track Edition ExhaustAWE Tuning Mercedes Benz W205 C450 AMG C400 Track Edition Exhaust The Track Edition Exhaust takes the engineered design of the Touring Edition Exhaust and replaces the rear AWE 180 Technology resonators with Track Edition straight pipe sections, delivering an even bigger dose of scream out of the suave sedan. It known to get raucous in the mid range and could be a little much for many, and for that reason, this system cana**t be returned due to sound: