how well would a set of 19x8s with a 42mm offset fit on my 2002 Audi A4 (FWD)? need 7mm-8mm spacers? specific tire size I should use?

I do plan on lowering it some ... but not much.

 

Use this wheel offset calculator to calculate the difference in inner and outer clearance from your stock wheels: http://www.1010tires.com/WheelOffsetCalculator.asp

I run 8.5 with 38MM offset with no problems and clearance to spare. Compared to these, by my calculations your wheels will fit just fine (2 MM less inner clearance, 10 MM more outer clearance).

 

Stock wheels are 17x7.5 et 45, so your .5 wider and only 3mm out. You will be fine you may want to space a bit but thats upt to you.

 

you guys are great ... thanks!