if you have an engine problem and the mod that you have can be the proven source of the problem then the warrantee is void but no an exhaust does not void your warrantee and a twin turbo or supercharger will but simple bolt ons dont worry about it
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2011 WRX STICobb Accessport, Nameless Performance exhaust, COBB SF Intake, COBB downpipe, 20% tint, Work Emotion XD9's
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