I just bought a 2006 ford mustang v6 with pony package and I am wondering what are some upgrades I could do to gain a few more HP. I'm not talking about adding a supercharger! My budget right now is about $1,000 MAX. All I have done right now to it is add a throttle body spacer.
switch the rear gears to 3.73, that will make it feel much quicker off the line. The downside is it will raise the rpm's, so going 65 on the highway you will be at around 2500 rpm's or so. It lowers your fuel economy a bit.
Switching to dual exhaust like flowmasters will add a little bit of power, and will certainly make it look and sound better.
Finally, get a diablosport predator tuner and reflash your car's computer. I did this on my V6 Mustang and it does feel quicker now. It didn't hurt the fuel economy, either.
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