I was refering to air filter, slip on, no cat!(hurting bike)not all that plus a powercommander with there map

 

Most all aftermarket pipes and air filters were designed to use with the factory mapping. The power commander just enhances it. You will be fine with out one but once you get it, you will be glad that you did

 

So even if you have a slip on with factor air filter do you still need the pc III? Cause it seems like this is a yes or no question but always gets every response or is it up to the rider.

 

K&N Filter and M4 Slip on w/o power commander for 2 years and no problems. It is not needed, it will only enhance or fine tune what you have.

 

No, I road mine for 2 summers with no probs with just a 2 bro slip on. The only advise I have is let bike warm up to over 140 before gettin it it, or you have a good chance of foulin plugs. I put K/N and PCIII on this winter and have only riden it twice with the map from PC. Need to get tuned. But you will be OK with just a slip on.

 

toss the K&N it's POS...
don't worry about burning valves, etc...it's not going to happen.
you will be fine, but the bike just won't perform as well or may not be as smooth. it's like this...if you want everything to be working good, so you get the max performance for your parts...but if not it's no big deal.

 

Get the PCIII anyway. Eeven without any other mods you will notice a big difference in throttle smoothness & response. Cooler running also by about 4-5 deg.

 

I will end up getting a PC3 but not this year thanks for the info

 

Im in the same situation..muzzy slip on w/ K&N, but im in no hurry to get a PCIII, eventually though. Not to worried about it, it runs fine.