86 / GR86 / BRZ GEARBOX SHIFTER RETURN SPRING KIT #V514-PROX When installing an aftermarket coolant

When installing an aftermarket coolant temp gauge or setting up a header/bleeder tank you'll need to tap into the return on your radiator hose

the diff breather may make contact and require additional clearance

This isn't ideal for those still using their cars on the street

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86 / GR86 / BRZ GEARBOX SHIFTER RETURN SPRING KIT #V514-PROX When installing an aftermarket coolantThe GKTECH 6 speed manual gearbox spring kit will bring your gear stick back to life by stiffening up the shifter and increasing overall shifter feel. To install simply remove the 2 bolts from the side of the transmission under the shifter assembly and install with the new stiffer springs.