More ride height

I have a 2014 Subaru Legacy 2.5i Sport. It came stock with 225/45-18. I love the wheels but hate low profile tires. I saw they made 215/50-17 for other trims but honestly, I want bigger due to the cost. 2015-2019 Legacy's have 225/55-17. Do you guys think this will fit on my 2014 Legacy? If not, do you think the 50s will make a significant difference?

You could do a 235/50-18, which increases the tire about 3/4", but that will only give you 3/8" more ground clearance.

You can't lift Subarus too much before suspension geometry gets a little questionable. Easiest and best way to go with out burning cash is a set of 1" top hat spacers. Bigger tires do a little bit but you're taking an already under powered car and giving it a worse gear ratio.

 

Primitive Racing who makes great skid plates many of us use also has a pick your height spacer kit that's very affordable.

https://get-primitive.com/lift-spacers/262-lift-spacers-2010-legacyoutback.html#/front_lift_spacer_s-pick_your_size/lift_spacer_combo_se-pair_of_3_4_front_an/rear_lift_spacer_s-pick_your_size

 

LP Adventure is a very good company with great products and thorough engineering. I talked to the owner at his booth at Boxerfest. He cares about his product and doesn't take short cuts when building out their product line. Their kit is a full around 2" lift with all the extra bits to correct suspension alignment. It's pricier and for the 10-14 Outback but it should fit. Ask around for confirmation before buying.

 

https://lpaventure.com/collections/outback-2013-2014/products/lp-aventure-2-lift-kit-2010-2013-outback