S4C Synchros


106gti

Member
Joined
Apr 30, 2012
Messages
30
Hi guys,

I need some help with buying Synchros for my S4C box. My S4C box is completely stock at the moment and i have recently ordered an OE 4.785 FD kits. Given Im going to open up the box so i thoughtI may as well replace the Synchros.

I do track my 9 and recently it starts to crunch slightly when i shift from 2nd to 3rd (when shitfing quickly under high revs), it seems fine to shift from 3rd -> 4th, 4th->3rd->2th etc.

Does i mean I should replace the 3rd and 4th Synchros ? If so may i know what is the OE part number for that? the closest thing I can find on the net is 23521-P21-315, can someone with past experience can confirm if this is the right part ?

What about MFactory ? I think they do sell synchros without the sliders ?

Any help will be much appreciated.

Cheers,
Ericson.
 
There is the synchotech kit available from Tegiwa...they do a few different combos? 3rd-4th is one I believe.
 
Correct me if I'm wrong, but does the EK9 S4C not have a dual syncros for 4th gear? Just something to look out for!
 
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