low rpms

I have a 04 mustang gt. When I'm at low rpms, there's no power like there use to be. It doesn't snap anymore. But the second I hit about 3000rpm, you feel the power come in and it finally puts you back in your seat. I have replaced spark plugs and coil packs. Everythings plugged in also. I'm...

Hello! After having my car Dyno tuned with the SCT X4 Tuner, I have noticed a slight fluttering sound coming from the front of my car when in lower RPMS / higher gears. This sound goes away from either being masked by the sound of my engine or just going away completely; when I accelerate...

So just adjusted the TPS in my 1996 mustang 4.6L V8. It's pretty much stock, just replaced some minor parts with OEM equivalent parts (like maf sensor and IAC and such). The biggest after market part I have bolted on is a Dorman intake manifold for NPI heads. Now the other day my stang died on...