alkemist

lol, if you have an auto, the tune will make you light up your tires easy if you don't have a light foot. Turn off TCS and it's even more fun.

Horseman59

Lol! I've been told a couple times to add 4.10s put what are the downsides to those? Or is it all good?

alkemist

I'm having those put in Saturday morning.. heard they kick azz in exchange for a mild drop in mpg, but is well worth it from what people say.

Horseman59

Yeah I hear they are amazing, as for the MPG drop...Oh well. I shoulda bought a Prius? I wonder how hard it would be to do the 4.10s myself

gman73

Leave the gear install to the experts. Sometimes even so called good installers will not install gears just right which will result in gear whine or something else.

Horseman59

Ok cool. I guess ill take it to a shop. How much will the install cost you alkemist?

alkemist

I'm getting someone in my mustang club to do it professionaly for around $200. I think on average it's $400-$500 for labor..but people have seen lower, higher. Make sure to get the FRPP ones.

joutcelt

i had mine installed by brenspeed for 500 with out parts. Around 800 hundred for everything which i know is a bit steep but they warranty for a year and i havent had a problem.

When i had them installed i asked about the break i period which is common to hear people say 500 miles but brenspeed said it was not necessary. If u are wondering about mpg. I get around 19 in town with a little interstate driving.

However my gf and i took the stang to atlanta and i was getting damn near 21.5 mpg figuring it the old fashion way. The on board computer was a little off. I had it on cruse control the whole way and when i was pulling the steep hills getting there. The engine never revved up to reach my highway speed of 75. It kept a 75 mph speed going up and down. Which makes it nice. I always hated going up hill in cruse control and then feel the engine rpms go up b/c it couldnt handle the load. A pet peev of mine i guess.

They are also very driveable if u keep ur foot out of it. But if u put ur foot into them they will give that fun factor that we all like. Im not sure if there really is any downside. Atleast not for me.