My first car was a Justy, so I'll try and help out here.

You could put 15" on it, but keep in mind that they will need to be narrow to keep from rubbing. This may limit the choices that you have. Also, if you have a larger rim, you may experience a decrease in acceleration becaue it will take more power to get those larger rims rolling. As far as performance goes, there are not a lot of options, pretty much a drop in filter, or CAI. Either of these are pretty minimal. Are you looking to keep this car around for a while? If not, you could modify the exhaust, but you will have to have a shop custom build one for you, as I have never seen a premade kit for the 3 cyl.

 

do a ej-20 swap

I don't know it its possible but i'd like to see it.

 

should contact the hatch patrol. they have a hand full of justys.

i believe the bolt pattern is 4x140? if this is true finding 15" rims will be difficult. there is a certian year pugeot that used this pattern. you can put very large tires on it however you will need to modify your fenders to allow the larger rubber. or you can get a 4" lift from backyard boys.

hope this helped

 

The Brat (old school classic) or the Baja (new school hotness)?

 

Definately an EJ20 swap. I read about someone doing it somewhere...

 

i read that someone did an RS conversion, ej25 and the suspension parts were modified for the justy.....man that would be a sleeper...i'd own one

 

bah, no ej20 swap. i know a guy in the local club up here who put a flat 6 in his. from the xt6. the thing MOVES, and DRIFTS! NA power all the way!

 

this subject has been brought up in hi chapter recently by me. justy's are teh roxors