Check out the dyno on the STOCK Bullitt.http://www.musclemustangfastfords.co...ang/index.html I wouldn't think this is possible !
315 BHP - 12%= @ 277 RWHP

 

Doesn't sound far off to me.
Stock my regular GT was 271 RWHP advertised at 300 BHP.
By the math it s/b 264 and some cars are.
I'm sure Bullitts have variation too.

 

Well, mine sure feels stronger than 277rwhp. Perhaps I got a higher one. Or maybe I'm just getting older..........

 

Opps I forgot the web site
http://www.musclemustangfastfords.co...ang/index.html

 

At home worrying about horse power.

 

oohhhh ya

 

I'd be surprised at a 277 rwhp dyno unless 93 octane makes that much difference as Fords has hinted but not substanciated.

5.0 Mustang & Super Fords had the Bullitt dyno at 264.9 rwhp / 5,500 rpms. I suppose several dyno runs took place and the best would be the one reported.

 

288 rwhp.
Maybe it was a cold day with out a correction factor

 

Now, that's more like what my seat-of-the pants told me. It is such a well balanced car in all aspects. Not as brutal in the acceleration department as the GT500, but much more useable as a daily driver and is a bucket load of fun to drive!

 

That link shows STD (standard correction factor).
288 RWHP would be just about right.
With STD correction and tune with CAI (K&N, similar to Bullitt) mine makes 293 RWHP
A cold day without correction the Bullitt will make even more than 288.
Mine clocked 298 RWHP at 50 degrees in the garage.

 

This would be a good time for the Bullitt and the Shelby GT to have a shootout.

 

or just one of these and not worry about it

http://www.netlook.com/auto/USFLWPB/...pg?dt=20080616

 

Now, that would settle a few disputes! Like it!