HEHEHE; stock OEM/Audi lifters: 65.7 grams each...

New lightweight lifters: 48.3 grams each. Net difference; 26.5% lighter each. I'm LOVIN it!!

Ounces:
Stock: 2.32 ozs. each

Lightweight: 1.7 ozs. each

If my math is correct thats a one pound parasitic/frictional weight loss per crank revolution for valve train figured at 2:1 cam-to-crank ratio.

That number for lifters alone is better than I hoped for with valves, retainers, lifters and keepers combined. If I'm dreaming no one pinch me just yet ok?

Probably should have said "double perceptible benefit"...

because I "think" these should very closely parallel the perceived net affect of the AAH cam conversion or effectively double the perceived improvement if done with the AAH conversion. I don't anticipate these being a very subtle or barely perceptable modification. I think RPM's will pull dramatically sooner/harder/faster even if everything else remains stock. They'll work on AAH/AFC engine codes with no other modifications and in conjunction with and/or as an enhancement to any/all valve train or cam upgrades. Right-outta-the-box-plug-n-play installation with no modification necessary.

But hey whatta I know!?! They could also be crappola. For right now all I have is lightweight lifters. Makes no statement whatsoever as to how well they'll work... it's possible they are crap, I'll be the first to admit it. But they may be the greatest thing since sliced bread too. Until someone plugs a set in and goes tooling down the road they must remain, at least for now, just "lightweight lifters" and nothing more.

I've had this feeling before on such things as airbox velocity stacks, bored MAF housings, bored throttle bodies with integrated velocity stacks, 3" silicone hose kits, recovery sleeves and even cheap-o AAH cams to replace our anemic AFC cams. Time will tell if these get placed on that list or if they'll go the way of my moms salmon croquettes.