4:10 speedo, tuner question

mikevm78 · April 12th, 2008, 02:59 AM

So, im putting 4:10's in tomorrow and i know the speedo will be of 7-8+ mph give or take. If i know someone with a tuner for 99-04 GT can i use it to fix the speedo or do i have to have my own tuner.

Basically, can i just plug someone else tuner in an fix the speedo being off?

Thanks for any info! MM

00silvergt · April 12th, 2008, 03:03 AM

The tuners are VIN locked, so you will either need a speedcal (dallasmustang) or a tuner of your own. My MPH's were off by almost 15 mphs till i corrected it.

mikevm78 · April 12th, 2008, 03:09 AM

Ok, well thats good to know. Damn 15?? Looks like a tuner is in my very near future! I guess its probably a good idea to have one anyway if your modding the car.

Thanks man!

06z28eaTer · April 12th, 2008, 01:46 PM

i used the speedcal, fairly easy install, hardest part is getting under the car lol

April 12th, 2008, 02:59 AM	#1
mikevm78 Regular Join Date: Jan 2008 Posts: 221 iTrader: 0 reviews	4:10 speedo, tuner question So, im putting 4:10's in tomorrow and i know the speedo will be of 7-8+ mph give or take. If i know someone with a tuner for 99-04 GT can i use it to fix the speedo or do i have to have my own tuner. Basically, can i just plug someone else tuner in an fix the speedo being off? Thanks for any info! MM

April 12th, 2008, 03:03 AM	#2
00silvergt Regular 2000 Mustang Gt Join Date: Jun 2006 Location: Pennsylvania Posts: 428 iTrader: 0 reviews	The tuners are VIN locked, so you will either need a speedcal (dallasmustang) or a tuner of your own. My MPH's were off by almost 15 mphs till i corrected it. __________________ Tuned by Joe at Tricktuners.com

April 12th, 2008, 01:46 PM	#4
06z28eaTer Hardcore Enthusiast 2006 GT / 1999 Cobra Join Date: Jan 2008 Location: Memphis, TN Posts: 1,177 iTrader: 0 reviews	i used the speedcal, fairly easy install, hardest part is getting under the car lol __________________ -2003 TERMINATOR- -2006 MUSTANG GT-

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April 12th, 2008, 03:09 AM	#3
mikevm78 Regular Join Date: Jan 2008 Posts: 221 iTrader: 0 reviews	Ok, well thats good to know. Damn 15?? Looks like a tuner is in my very near future! I guess its probably a good idea to have one anyway if your modding the car. Thanks man!

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