gonna take a chance and try this out, its been out 4 a while and i havent heard any negatives but then agion i dont know anybody that has it..
http://www.gtechpro.com/ss.html

the best thing about this is i can use it when i get my tc wheneva thats gonna be cross fingers

 

this has been out for a while. i rather get that than a monster tach

 

The E.T.'s that the G-tech gives are suprisingly accurate... usually within .1 +/- ... which is awesome for just a little gyroscope.

The MPH's the G-tech gives are usually 1-2 mph high, simply because it measures ACTUAL speed at the end of the 1/4 ... and drag strips measure your AVG speed over the last 60 feet or so.

 

i would get a APEXI rsm i loved playing with the one i had plus the rsm looks alot better to

 

nice but if u look at the technical page on the bottom it says it might not operate properly with mods to the car, and its not plug and play u have to wire plus no shift light..... thats the main thing i like about it that and the 0-60 feet (practice the launch)

 

git it and it works great very easy to use i luv it

 

my friend had one for his Si and it worked great