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      12-05-2012, 01:09 PM   #9
CHECKERED
ex deus machina
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Drives: 335i E92, 05 Audi S4
Join Date: Oct 2012
Location: a Treacherous Canyon Road in SoCal

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2005 Audi S4  [0.00]
You can get away with running pure leaded gas as long as you don’t have cats and every other tank, so you would need to run regular unleaded gas in between to clean out the O2 sensors,
VP does sells 109 unleaded, which is your best bet.
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Garage Queen: 2005 Audi S4 4.2L V8, Vortech Supercharger, Vented CF Hood, PSS9 Coilovers, Sway-bars, RS4 brakes, Fast Intentions - Cat-less Downpipes & Full Exhaust, 505AWTQ
Daily Driver: E92 335i N54: JB4 G5 ISO28 w/BMS Flash, quaife LSD, BMS Meth, AA sport IC, BMS Charge Pipe, BMS OCC, Euro Light Switch, M-Sport Kit, Z4 35is Front Rotors, Hawk HPS pads, SS brake lines; 12.1@117mph (stock intake stock exhaust, 225ís RFT)