20's on a 91 LS 400?
 

Will 20" rims fit on an LS? If not what if the biggest size that will?

What is the offset?

Also I am just about to buy a 91 LS400, does this car/year have the air suspension? If so is there any safe way to lower the car without messing up the ride? TIA.

20's will fit just fine...do you want to stagger your wheels? Otherwise, 8.5" all around should work just fine...245/35-20...offset +38 to +45 should work just fine...

With Air Suspension, there are three ways to lower it...

1) Replace with "normal" suspension
2) R-Spec module...from Japan...you can control your air suspension from within your car...this is the best option...about $500...
3) Manual adjustment..here's the link...

https://www.clublexus.com/forums/sho...threadid=28270