I do not like the looks of the fugly stock air cleaner and I'm thinking about getting an air kit. I'm assuming that they are all basically the same performance wise, but my main reason for getting one is for appearance I like the the looks of the various "round" air kits .........But in reading posts on the subject it seems that some, if not all, also make a loud "sucking sound" which concerns me. Do they all "suck" the same or are some quieter than others? (again, perfomance is not a issue). If it matters, I have the stock exhaust with four 1/2 inch holes in each muffler but am also thinking about getting the cobra slip on.
My .02 on this after looking at many different designs:
- Some like the one I got from S&S Custom has a plate machined for our 2 throttle bodies. Some others have just one hole that sort of covers both and is from the carburetor days. I prefer matching the OEM design for 2 throttle bodies.
- If they have a round K&N filter inside the outside is just personal appearance. Patrice, Josh and I have 3 different ones: Cobra Powerflo, Hypercharger and Alley Cat respectively but I cannot believe they perform any different since they have the same internal filter and, therefore, the same air resistance, path etc.
- Barons and spikes will be different so you'd have to compare total inches etc. and if the design makes a huge difference.
- From what I've seen and heard they all suck a fair amount. Even with the Cobra slip-on I have to listen for it but if you have stock pipes it might be more noticeable. Then again, like many things in life, if you look/listen for it you'll see/hear it...