Iam very new with dealing with motors and I have to say the installation for a newbie was at first intimidating but once I dug inn it was a price of cake. Overall I love the product I got +1mpg more out of my vehicle a lot quicker throttle response and you can def feel the horsepower difference not only that but it deepened the sound of my exhaust and made it a hell of a lot meaner... I love it!
Decent buy.... Any extra HP helps!
Good material, looks nice, easy instal on an 09 silverado 5.3 and not a terrible price. I tow a lot and figured any extra gains is a plus. I already had an airaid cold air intake on and figured might as well complete the set with the spacer. No real noticible gains but makes sense with the whole helix spiral, plus the cai, but don't expect to be sucked to the back of your seat buying this. Looks cool and gives you an extra mod. and a slight whistle at higher RPM's.