Actually, there's some wrong figures stated here
Wira 1.5 is 18mm for front(same as Putra after GTi came out)
Wira 1.6/1.8 is same as MIVEC or Evo I and Putra before GTi 23mm for front
Evo II and III is "downgraded" to 16mm front but directly mounted onto absorbers like GTi(GTi stock is 18mm in front, R3 is 19mm), reason for downgrade is to reduce understeer
For the rear
Wira 1.6/1.8/Putra(regardless of year) all came with 13mm non-direct acting(satay bush type)
Satria GTi is 13mm direct acting type(double ball joint no bush type)
Evo I/II/III(i think inclusive of the 1.8 GSR) is using 18mm, should be also double ball joint but not confirmed, cannot fit onto normal Wira/Satria/Putra chassis due to different mounting and kinks
All these figures are from manufacturer specs and not hearsay only and had been confirmed by measuring a few cars of the stated model(s)
Well, as a matter of fact, i have already installed the Evo3's into my satria without any chasis modification.
Some ppl are worried about EVO's anti roll bar + lower arm not being able to fit into satria because of their cross member which is designed for a 4 wheel GB. Like I was earlier....
However, I was given an opportunity to fit before I pay situation and it manage to be fitted into my Satria 1.6 nicely.
As for the rear, my friend is using MIVEC's it on his Wira aeroback and felt the improvement on the handling.
Well, back to the term "upgrading". Reducing the thickness of the antiroll bar, but at the same time improving on the linkage design and a more solid lower arm to provide better steering response. And overall, improving the handling of the car, I would call it an upgrade.
When U have a better antiroll system on the rear, it reduces the understeer...
Anyway, thanks for the concern and explaination. I'd wish to learn more if U have other opinion.
BUMP, anyone...? Good upgrade for satria/Wira 1.3/1.5. Will also take out my rear later when I have money.