Well I can't compare the two but I can at least tell you how it changes a stock car. Right around 3000 you can feel the car kinda jump like it wants to be opened up. Install was pretty easy. IT was my first mod and it's pretty sweet. Technically it's my only engine mod, and I think it's well worth it. It just growls all the way to redline. Here in V-8 country, (very uneducated like that trolls we have) it taught a few Displacement freaks some respect with a basically stock car.
I raced a modded early 90's mustang, it runs approximately mid 14's I think, and he said he could hear the car growling behind and then a SCRRATTTCCCHH as I shifted into 2nd and 3rd but that's the Clutch....back to the intake...yeah I think it's well worth it. I'd recommend it.