Time sertt thread repair kit

I drive an 08 sti hatch. I need to know what exact size kit to buy? 12x1.5 x18?

Only helicoil makes this size Or 12.x1.5x16.2 the actual time sert brand.

Is there a difference in front to rear?

Is there a write up on rethreading calipers?

Thanks!
 

Alin

Diehard Car Enthusiast!
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