4.0 liter

I just purchased my first Mustang not too long ago. 2009 4.0L V6 Automatic 45th edition. Thinking about adding some mods to it or anything else to make it that much better of a car.

i have a 2007 4.0 v6 mustang and im looking to tune it up for more torque and horse power. if you guys could help me that would be great!. so far i have after market exaust done to it which the previous owner must have done and it sounds nice but I personally have K&N Cold air intake im...

Okay so I have a question. I own a 2006 4.0 mustang, with a manual 5 speed transmission, and I was wondering if the manuals have any advantage over automatics, besides the ability to red line?

If I have a normal v6 2002 Mustang (3.8L) and I want to put on true dual exhaust on. I'm wanting to put on Borla stinger duals but they are made for 2002 v6 gt (4.0L) mustangs would they still work or sound the same or close? If not could you tell me everything I need to replace to get a sound...

Hey guys - anyone have the following setup and no problem smoking the tires from a standing start: T-lok, 255-50-17 tires, true duals, aftermarket CAI, auto trans with EVERYTHING else stock, including tune? I don't mean stepping on the brake slightly to get the rear wheels started, either...

I was searching around online for a good place to talk about mustangs and this seem's like a great place. my name is Aaron ans i have a 2005 mustang redfire v6 with black racing stripes and a pypes aftermarket exhaust.