Blownsvt

go with at least a 4lb lower if you want a chance at the 500 mark. i have similar mods and with a 2.93 4# only made 480

Bigbadfords

My best friend has an '03 terminator 10th anniversary and it has about 28K miles on it. He had it dynoed at about 385 RWHP.

xxkazp3rxx

The numbers here are pretty accurate... I didn't get mine stock, so I can't say one way or the other.. but most dynos i have seen (stock) are in the 360-380 range..

And I don't know why everyone thinks the IRS is so difficult to launch on.. I know several people with stock cobras (down to stock tires and air filter) have launched 1.7 60"s.... Just not me .. I needed my nittos... but there are a lot of people that have.

rob.d

A buddy of my mine dyno 400 rwhp with a bassani x-pipe and bassani cat back exhaust. Everything else stock.

03_svt_cobra_22

i have a bone stock 03 cobra with stock air filter also.... and i have 15K on it and i make 385hp and 385ftlb at the rear wheels so i just depends if yours has the "magic" or not