[edhtrd71]

I would have never paid for a throttle body spacer because I thought they were useless as most people post and I really didnt believe the hype. I cant guarantee it will help yours but it made a difference for me. I was givin one in some parts trade so I put it on and was amazed. I have an 05 hd 2500 w 6.0. I started out averaging 12.8 13.2. I installed a huge magnaflow, cold air intake, bypassed the throttle body cooling, ls6 heads to raise compression with identical flow, a tuner these got me to 13.8. A few weeks ago installed the airrade spacer and last 2 tanks were 14.7. I do the math at the pump and have a scan guage monitoring which is pretty accurate. I feel that is a huge gain compared to all the other upgrades