Up for sale is a used K&N Air Charger Inatke for a 2005-2006 Pontiac GTO. Dyno proven 13.95 horespower increase at the rear wheels! I have only had it on my car for 2,000 miles. I could really tell the difference. It's almost brand new. If intrested please e-mail me at transam4ws6@comcast.net. I'm asking $160.00 that's with shipping.