Any OEM front bar will fit ANY ae86 (all you need to do is match the bumper mounts to the bumper).
EDIT: looked up that part number, your car is zenki and so is that bumper so it will go straight on
ordered another incorrect part, this was before I knew of toyodiy.com. anyway got a bumper part # 52119-12140 (dark grey even though looks black) it says it suits XL, SR, SE, GT, GTV models.
so my question is will this bumper fit my GT Apex without modifications or do I have to swap it for the correct bumper (52119-12151-02)
Any OEM front bar will fit ANY ae86 (all you need to do is match the bumper mounts to the bumper).
EDIT: looked up that part number, your car is zenki and so is that bumper so it will go straight on
To make your bumper the GT Apex one, you have to get your shitty GTV one, and paint it red panda. Then it fits.