I was looking to purchase some 19" rims for my tl this summer
and i have no clue about offset so i was looking for some help and suggestions from you guy n gals .

alright so i want to run 19x8.5 in the front and 19x9.5 in the rear.

the offset options for the front (8.5) are +25 or i could go with +38
and for the rear is +40

so i was wondering which one would look more aggressive, which would be more flush... any and all opinions are welcome

 

+25 would be more aggressive. Smaller the number (offset) more pushed out your wheels are gonna be. There is 1000s of threads about this, search please. Search "bforbrian", he made a thread about 19" fitting and tire sizes as well. A LOT of great info in there.