97 Civic EX need some advice!
 

I just bought a 97 ex from a little car lot and my first question is i have the stock 14 inch rims n it says to put 185/65's on it and it has 185/60's would that throw my speedometer off any? and it has a cold air intake from inside the fender and a skunk2 intake manifold and aftermarket headers i think they are pnx or something like that how do i know if the whole exhaust has been upgraded or if the cam or injectors have been??? and what else could i do to this thing to get more hp's this is my first honda

Thanks
Brandon

The difference in the tire size is too small to throw your speedo off too much. It may be off by 1 mph at 70 mph. To know if the whole exhaust has been upgraded or not, just measure it and see if the piping has a larger diameter then what is supposed to be there stock.

for your tires, make sure they're the same in the front and back but not side and side or you'll end up wearing out the tires fast with it being uneven.

What about the cam and injectors how can i tell if they are stock or aftermarket??

And i can't get my keyless entry to work either someone told me it was cause the factory radio was replced. what has the radio to do with the keyless entry system and is there a work around?

look here
https://www.honda-acura.net/forums/s...d.php?t=253051

The keyless entry runs through the factory radio. The only way around it that I know is to connect both radios, only hide the factory one in the dash. This site shows you how http://www.installdr.com/InstallYourself.html