Kartboy Shifter Bushing Combo Subaru STI 2004-2021 | KB-003-6COMB

STI 2011 sedan.

Followed YT tutorials to install this and the other shifter bushes. It took me 4 hours to install as I took my time and used floor jacks. I also cleaned up the area and relubed the reverse lockout cable attachment. OEM bushes where so squishy. Now shifting is nice and tight. This did introduce different sounds when shifting. I like it. IIR is legit.

Compared to Whiteline and Cobb kits this is WAY loud. The circular bushings are rock hard, which from other companies is probably 30% softer. To some this is a reasonable trade off for a tiny bit more stiffness in lateral movement. In my experience there is a SIGNIFICANT whine coming through the shaft. Compared to whiteline where it was barely noticeable, this is a constant whine almost like the trans is low on fluid. After switching over to another bushing the sound went away immediately and was certainly related to the bushing. I have a full sound system with dynamat lining the entire car and invidia exhaust and can still hear the whine clear as day. I would only rec this to people who do not care about noise.

(All shift assembly bolts torqued to proper spec)

I'd give this 4.5 stars. Nothing at all to do with the product's performance but that rear bushing was a pain to install! Overall it does the job! No more shifter slop and shifting is just a little more crispy!

feels really good shifting much more of a racecar feel definitely a must buy if you are getting the short throw shifter aswell. The only thing is there is a bit of a whine from the bushings vibrating on the transmission. if u have an exhaust u probably wont notice though.

Kartboy Shifter Bushing Combo Subaru STI 2004-2018