Do you have the 335/30R20 PS2s on your car now?
I have those PS2s on there now.
They may not rub if not lowered, but since his car is lowered with caps the difference between removing the caps and going to the 25's is negligible. Jason, do you have any other suspension mods as I have not heard many mention rubbing with just the caps. What size rims do you have front/back?
I have Intrax springs and caps. The springs drop it 1" in the rear and the caps are good for another 7/16". I'm 19/20.
The reason I'd rather do the tires is because I have a friend with 19/20 iForged with Nittos and he has Eibachs and caps out back and only rubs when he hits a big dip at high speeds. On the other hand, I have a friend with Eibachs only with PS2s on 19/20 and he's about the same. It looks like the extra 1/2" or so that I have on them is the proverbial straw breaking the camel's back.
The 25 sidewall is 1.2" smaller in tire diameter than my 30 sidewall PS2s, so I'd gain .6" clearance over what I have now. If I pull the caps out for stock that'd raise it another 7/16", give me over an inch more clearance.
I'd rather start with tires because a.) mine have bulges in the sidewall and they should be replaced and b.) I like the look of a lower profile tire better. If I still have rubbing problems I'll just pull the caps. It's more expensive to do the tires but way less labor-intensive for me.