My old RX box would've broken on the first hard launch
My current one is a 4.44 Matt but I am not sure if it's from a WRX or STI...I originally thought it was an RA box but as discussed on here previously the revs at certain speeds don't match that of an RA :/

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broken wannabe racecar
Wagon daily that has replaced said broken wannabe racecar

Have run 3 of these bad boys in my old 5 speed in a 10 year old car. 5 speed box finally retired to the gearbox heaven. I then ran one in the 6 speed and the clutch died after a season of rally sprints from me. Now I am running a Jim berry special 6puck and still to kill this one. I see no problem running these clutches in the 5 speed you just need a little mechanical sympathy on gear changes etc.

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race tape y pipe running .05 bar till spares turn up.

Hey all just a quick updated question,

Has anyone ever ran a Xtreme heavy duty clutch on a stock gear box?
Pros & cons?
They're personal opinions?

Many thanks


using the Perth-WRX mobile app

I run the competition clutch stage 2 with the lightened flywheel as a combo on a 5 speed . Very good combo no shudder very good feel but must have mechanical sympathy with the 5 speed matter what clutch you run .

Unless you like replacing boxes. If you can't drive with sympathy replace clutch and everything after it with6 speed


Sent from my iPhone using Tapatalk

i got one cheap from maximum motorsports.. shuddered bad from new till dead.. wore out in 9 months.. never again.. just me..

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06 sti