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WTB: Cup Wing for GT3RS wanted
#2
Putting a real cup wing and decklid is complicated because the air intake is incorporated into the decklid.
Go look at the underside of your decklid and then check a cup car. (most race shops have a cup car customer with a car there for set up) Your decklid is 8K or so and 3K more for the wing. The cup parts costs more. If you get a good deal on one and then spend 1-2K modifying it to work, and then tune for more airflow Your idea will cost 15-20 thousand. Just about everything else will improve your car more than this upgrade that you are contemplating. The bang for the buck is very low with this mod.
Go look at the underside of your decklid and then check a cup car. (most race shops have a cup car customer with a car there for set up) Your decklid is 8K or so and 3K more for the wing. The cup parts costs more. If you get a good deal on one and then spend 1-2K modifying it to work, and then tune for more airflow Your idea will cost 15-20 thousand. Just about everything else will improve your car more than this upgrade that you are contemplating. The bang for the buck is very low with this mod.