A friend gave me some Wild Pig slip-ons to try. He took them off his 04 ultra Classic. I have an 07 ultra Classic. He says they'll fit. What do you guys think? He also said that if I have stock air cleaner that I won't need a Fuel Pak or anything. Is that true? You can see straight through these mufflers. Ain't they gonna be LOUD? Any help would be appreciated.

 

nad em on my 05 nice pipe for a good price they are loud sounds like u may be missing the baffels u can find em in a couple different sizes depending on how loud u want em HOWEVER you can get away without retuning but i would highly recomend something to get u running a little ritcher the 07"s are tuned so freakin lean that any extra air flow will make it to lean=more heat and more pinging. cant remember witch baffles i had in the 05 think they were 1 3/4 and they were loud a little to loud for me got headaches after a few hours on the highway but im gettin old

 

If you can see straight through, likely they are missing the baffles and will be LOUD. You can buy baffles on e-bay for a reasonable price. Have 1-1/2" in mine, sound is terrific. A guy I know has the 1-3/4", a little too loud for me at constant cruising level. Otherwise they are great.

 

They will physically fit on your bike, but I think you will need to install bafflles in them to quiet them down to an enjoyable level and to prevent too much power loss from lack of backpressure. The ECM can adjust itself to a degree, but you might want to try the Nightrider O2 IEDs to enrichen the fuel mixture and cool your engine down.