View Full Version : Black mark on rear bumper
Hey guys, just wondering how can i get my car not running rich? My rear bumper has black marks and its getting kinda annoying washing it every week
cheers
xtat1k
28-11-2007, 07:36 PM
what petrol do you use ?
BP ultimate or 100 V racing
xtat1k
28-11-2007, 08:56 PM
BP ultimate is much cleaner, my car doesnt normally run rich but with V power it usually leaves black marks anyway. How long since this has been happening ?
ever since i put my bc spec 2 exhaust on about 3 months ago
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