After hard use or age, your STi Brembo brake calipers might need some TLC. Pistons can get gummed up and grit and dirt can end up inside the works. Sometimes the pistons get so badly scored they just need to be replaced.

Fix your caliper up with the help of our aftermarket replacement piston kits. Each kit gives you all the pistons you need to fix ONE caliper. If you need to repair both calipers, get TWO kits. For a full car set, get two front kits and two rear.

Our replacement caliper pistons are CNC-machined from super-strong T6061 aluminum, to exactly match the size of the OEM Brembo pistons.

Want more details on how to? !

Note that dust boots and piston seals are NOT included in this kit, but they are available to purchase separately .

We don't normally split the calipers in half if they are not leaking, but if you do you'll need .

Use caution when handling any caliper pistons; you want to take particular care not to damage the outer barrel.

Fits all 2015-2017 Subaru WRX STI, or any other 2008 Subaru equipped with black STi-labeled 4-piston/2-piston calipers.