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      03-05-2013, 11:27 PM   #8
adc
Brigadier General
 
Drives: 2009 E90 M3 ED
Join Date: Sep 2006
Location: MD/DC

Posts: 4,099
iTrader: (6)

I've used Pagid RS19 with ATE fluid and DYI cooling ducts into the wheel well at VIR full. Im on stock suspension and 265/285 RS3's, running at the edge between intermediate and advanced groups. Works fine, mostly - but I still managed the brakes a bit.

Let me explain. I experimented a few sessions and ran progressively harder on the back straight, braking later and later until I went past the last brake marker, quite at my fear limit and when the car on stock suspension was getting squirrelly. I could do perhaps 2 such maximum attack laps, after which the brakes got a little soft, and I backed off a little.

To me personally, it is worth more to keep the brakes stock with very good pads, cheap cooling ducts and a little bit of brake management. I also went with 18" track rims. Mentally, I cannot justify any modification costing 10% of the price of the car or more.

But if you want the absolute best lap times, and want to scare Boss Mustangs away on braking, you will probably need a BBK.

YMMV.
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2009 E90 M3 ED
2014 X1 28i
2000 Boxster
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