I went with 215/17/40's, i love the tires traction but you do get some rubbing. I even shaved some of wheel-well inside to give some clearence. But every now and than ill get a bit of rubbing. Comes with the performance. After shaving a bit off, i dont think you'll have to worry about tire tread wear. But your thinking 45's so it might be a bit different. I happy with the sacrafice.

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Silver 98 SVT Contour
Eibach Pro Kit
Niche Pultec 17"
Toyo Proxes 225/17/40
Shaved Wheel wells
19mm Front Sway
21mm Rear Progress Tech.
Superchips
Auto Meter Pro Shift Light
Extrude Honed
Stripped Resonater
Street Scene Free Flow Exhaust
Weapon R air filter
(Soon to be Injen Tech Cold Air Intake)
Oki Doki Signs Vinyl Graphics
Clarion/Sounstream/Kicker

Silver 98 SVT Contour E0
#4124 (Currently on Life Support)
Built 11/97 Bought 1/98
Eibach Pro Kit \ Koni \ Niche Pultec 17"x7.5 \ Yokohama Parada 215/17/40 \ Shaved Wheel wells / Brembo-KVR Cross Drilled Rotors / KVR Carbon Fibre Brake Pads / Aeroquip SS Brake Lines \ 21mm Rear Progress Tech. (Powder Coated Black) \ Superchips Auto Meter Pro Shift Light \ Extrude Honed \ Stripped Resonater Street Scene Free Flow Exhaust \ Injen Technology Prototype CAI \ Weapon R filter \ Hose Techniques Red Kit \ Folia Tec Red Caliper Paint \ MOMO (shift knob, pedals, seat belt pads) \ Clarion, Sounstream, Kicker \ Optima Red Top Battery \ SVT Emblem Mods
Jet Hot Coatings (25-30% Cooler) on Upper Intake Manifold, Sho Shop Y-Pipe, Cat, and CAI
"Come Out...Come Out Where Ever You Are"
http://www.geocities.com/speeddemons19