|
I bumped into a forum member at the local garage who tracked his BRZ stock a few times. The only thing he managed to destroy were the brake pads and brake fluid. The stock tires looked very good still.
I'm on my 2nd set of Pilot Sport A/S 3 in 215/45/R17, first set was 87V and the new set 91W. Very good for occasional spirited driving on the roads even when the temp dips down to near freezing. Even tho the tread wear rating is much higher than Pilot Super Sports, they can still wear out quite fast if repeatedly driven very hard on the road (my friend took my car out for a spin once and drove it quite hard, and destroyed my tires within the hour).
According to STI only their front under spoiler / lip skirt and rear spoilers and gurney flap options would give you more downforce as they are wind tunnel tested, not sure about the side skirts and rear spats (don't think they do much other than looks). I don't think even the stock optional rear diffuser does anything in terms of aero. You can also look into adding the stock underbody aero panels for less drag. The stock rear spoiler is used to give less drag, not for more downforce.
|