as title suggests, what size is the front anti roll bar bush on an 09 sti? is it 20 0r 21mm? one of my front wishbone bushes is shot so I'm going to replace both of the wishbone bushes on either side with powerflex inc the anti lift rear bush so may as well replace the anti roll bar bush at the same time but not sure which size i need. thanks in advance for any replies, Steve.

 

Gimme 5 minutes...I will have an answer for ya...I think it's 20mm but just got to confirm

 

21mm oem part number 20414FG020

 

thank you very much! i was just going to buy both sizes and then sell the one that didn't fit but you've saved me the money! karma to you my friend :-)