Those numbers look low? Weren’t they rated at 300 at the motor? These guys got 250 or so stock. stock gt rwhp? - MustangForums.comWhat kind of dyno was that? dyno results are very variable, those numbers sound maybe a little low, was it a Mustang dyno?
The ram-air affect with the shaker hood theoretically might add a little more air flow and a little HP, but it should be OK tune-wise because the EFI system will automatically adjust for the air that is coming in, as long as it has good readings on how much air is coming in. The tune is important with the CAI to "recalibrate" the MAF sensor for the larger intake tube.
I'm guessing you might pick up another 20 HP with the CAI and tune.
The “ram air” is somewhat of a myrrh, or I think you have to be doing well into triple digit speed to pick up a percent of a horsepower.
Marketers just can't resist it. Ram air! The words themselves summon up images of rushing wild beasts, or of secret military aircraft operating on futuristic principles. Unfortunately, on most perofrmance cars, ram-air is as functional as tail fins were on cars of the ’60s. What is it? Ram...