PDA

View Full Version : 998 Engine breathing question



Ramrover
06-23-2018, 10:58 AM
2012 RTL...… I removed my entire air intake system and installed the JT's air intake. My question is...…. I still have my cat converter installed with a stock muffler... Would I have better performance if I removed the baffels from my stock muffler or leave them in....'