I have a 2005 mustang gt! I have pypes axel back and a airaid cold air intake, I'm planning on getting a 62mm throttle body, long tube headers and under drive pulleys! Any idea on how much rwhp I would be looking at and also what kind of tune would be best?
Not a lot I'm afraid, but hard to determine as there are many factors as what condition the engine is in, outside temperature etc. Find a local shop in your area that has a dyno. They can determine the HP and TQ and get you set up with a decent tune if for the street or drag strip. Check out www.corral.net, lots of info there.
Search Ford Mustang Questions
Are you a UK consumer? CarGurus now has a discussion forum in the UK.
Ford Mustang Experts