i wanna put these gauges on my v6 and the tach and all the gauges look exactly like mine except for the speedo...will this cause issues or not...below is a pic of the gauges, and my speedo only goes up to 115. any help would be great

 

It won't cause issues for the car, but it will make you think you are at a different speed than you actually are.

 

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Above are gauges that appear to be the same as what you have shown in the pic, but they are for the 115 speedo. Font is a little different though

 

ya but i dont like how those are all one color at night...and when you say that i would be going a diff speed would that only be after 115mph or would it affect my daily driving speeds too?

 

If you actually look at the gauges, the numbers are spaced different.

 

because the numbers have different spacing around the gauge, you will always be off by the ratio of the two max speeds. so if u are set for a 115mph speedo and that is a 125(??? ive never changed speedos before.... so i dont know if u rate by the highest printed number or highest dash) you take ((125-115)/125)*100% = 8%, so you will always be off by 8%. To put this into context, at 55mph you will think you are going 59.4mph. going to a higher speed speedo will make you constantly driving slower than the speedo shows, kinda like increasing gear size. they may have ready-made computer flashes for u to fix this, or u can get one to correct for gears and play with it until you get the right ratio.