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Cross drilled can be machined, but that doesn't matter in this case either way. The only time you need to replace the discs is when they are below the minimum thickness - the hats should have a measurement of what the minimum thickness is, and you can check the thickness with a caliper. If they are heavily pitted, with a significant lip on the edges of the rotors, they need replacement. Normally street pads over 40,000 km wouldn't need to be replaced just yet...
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Todd
2005 Boxster S - Atlas Grey/Black, PASM, Sport Chrono, Bose
2006 Infiniti M35 Sport
2007 Cadillac Escalade (tow vehicle with bling)
'00 Boxster - 2.7l w/FVD ECU tuning, Moton double adjustable suspension, custom stainless headers, lightweight flywheel, dual Magnaflow mufflers, 18" CCR wheels, 911 front brakes in front, Boxster front brakes in rear, full welded cage.
http://www.epiqautosport.com/images/epiqtoddavatar2.jpg
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