What is the difference between SLP and Granatelli MAS

I was wondering what the difference is because the Granatelli is twice the cost around 399 compared to SLP at 189, Is it worth the cost? I had a Granatelli on my 97 Z but why the cost difference compared to the SLP MAS? Thanks!

There is no price difference for the Granatelli cold air or no cold air program. Why is it so much more expensive than the SLP? and is it worth more? Anyone?

the difference is one is a piece of junk and the other one is a bigger piece of junk

so you don't think there is any benefit to either one? waste of money either way?

the stocker is good to over 450+ rwhp. With a tune its worth much more.

Until you really need the higher flow (as Ghost suggested, over 450HP), you're better off sticking with the stock piece. The stock MAF flows well enough, and accurately measures the flow of air (exactly what it was designed for), and is also generally easier to tune with.