The TTS and TTRS exhausts are totally differant. I had my TTS stock exhaust side by side with a factory RS exhaust at the Meisterschaft Top Secret Center and they are nothing alike. The downpipe for a 4cyl and 5cyl arent going to be anything alike the RS is larger diameter throughout and all the exhaust hangars are in differant places as are the outlets tips and rear valences. Meisterschaft stuff is top quality I have their systems on my TTS my Gallardo and soon my E30 M3 and I definately feel they are worth the money.






