[CobraJohn]

I wish I had done this, but I didn't. Has anyone run a HP dyno test on a stock 2003 Cobra to see what HP power it really has from the factory? Real flywheel and rear wheel? Thanks.

[pdiddy80]

I didnt do it myself, but I read up on it, They range from as low as 350's to as high as 370's stock rear wheel horsepower.

Which means they were under rated at 390 Factory horsepower at the engine. They really had 415-440 at the flywheel right from the factory.

Take 15% from 425 and you get 362, which is an average dyno for the stock 2003 cobra.

[NoSlow5oh]

A buddy of mine dynoed his '04 at 390rwhp stock. It truely was a factory freak. That and the fact that he dogged it from mile 1. It had less than 100 miles on it when he took it to the track.

[Darkwater3]

I had mine done and I had 414 Hp and 380 tq at 8.7 lbs of boost completely stock from the dealer. Myself and the guy who owned the dyno was blown away.

[germansheperd]

mine did 381 totally stock at 120 miles on the odo.