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Old 07-03-2012, 11:26 AM   #3
Big Chin
5th Gear Member
 
Join Date: May 2004
Location: Toronto - Waterloo
Posts: 1,076
Could be a few things... I don't know how relevant to your car they are...

But it could be the brake lines... as it gets hotter they get spongier, I have stainless steel lines... stops the line from flexing...

Could be the brake booster/pump...
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