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4 pots and 15s


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Hi guys,

On my wrx 93v1 i have 2 pot front brakes (factory spec), i have a set of 15s with gravel tyres, i also have 4 pots from an sti, what im wanting to know is will the 15s fit over 4pots, and if not what would be a suitable brake upgrade if i was going to retain the factory brakes?

Not too keen to get new mags and tyres for the gravel when some people think the factory brake are ok (ish)for what im wanting, no serious track weapon here, just some hillclimbs/autocrosses/daily driving duties.

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highly doubt they will clear 4pots (15")

possibly may if they are proper rally wheels as many use 15"s on rally cars

BUT my OEM 16"s barely clear my brakes (same diameter as 4pots)

IIRC koom had a link once to 15" special wheel supplier to clear big brakes for the rally guys

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Average 15s (like the factory ones) wont fit over 4 pots - they dont even fit over the bigger GTB 2 pots! But as Joker said, you can buy 15" rims suited to rally that will fit - brands like Speedline and Oz are a good place to start. But expect to pay a bit for them.

If your lucky you might find a 2nd hand set, otherwise ask around workshops that work on rally cars or talk to your fellow competitors.

Personally Ive found the braking limits of my 2 pot brakes on gravel are more related to the level of tyre grip rather than brake ability.

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too upgrade what u already got if u go down that road

I would put a brake booster brace in,Change the Fluid to a known good brand/type,fit a set of slotted rotors(people seem to be anti crossdrilled and slotted but they worked a treat on my folks V8 Calais) and fit a good set of brake pads ( I swear by bendix ultimates)

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thanks guys,

not really looking to buy new rims or tyres, just wanting to know if i can get away with putting 4 pots on(not looking so good in my case), but I will jsut try and upgrade what i have for the mean time anyways.

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I've got Goodridge braided lines, Cusco brake master cylinder stopper, Znoelli S12 slotted discs all around with match Znoelli pads upgraded on my WRX. I guess that's what you could call a "mild/sporty" brake upgrade so you might want to consider a similar setup/upgrade? Spent ~700 all up but what I'm getting in return is definitely worth it ;)

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