Yeah, stock single exhaust. I'm planning on running sidepipes soon (single 2" to 'y' pipe with dual 2"). Would I be better off changing out the jets in the 470 to something smaller? Any ideas on sizes? I'm not getting into the engine, and I don't plan on running headers because I don't want to deal with adding water ports to the intake or running the coolant lines; seems more of a hassle than what it's worth on a daily driver.