No mufflers, but they have a couple of resonators to quiet them down.
Definately a nice purchase... i think that if i knew what i know now about srt4s, i mightve bought one over the MSP... but i still love my car.. and i can hang with stock srt4s... problem is... no one keeps em stock. :/
congrats on the SRT, there is an article in this months modified mag about it, and with about 5 grand in mods you can get 501 whp and 529 foot pounds! thats ******* awsome!!!!