I bought a velocity intake with the K&N filter off of ebay for 70 bucks shipped. Since then I have been reading on here that they aren't that good. Any opinions on them? Should I just use the K&N without the lid on the stock airbox? One of the gripes I've read about it is the hot air surrounding the aluminum intake tubes of the velocity kit. I thought maybe just insulating them would help that. Anyways, any opinions or other intake suggestions are very welcome and appreciated. Thanks.