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06 silverado ext cab with heavy suuspension pkge tano cover soft top airraid tb spacer flowmaster 40 exhast and mac cai with the headlight removed ran a 16.043 i was kinda upset when last year i didnt have cai it ran a 15.82 although it ran that in 65 degree wheater today it was 85 also i have hypercrap set up for 92 fuel when i didnt realize it i was runing 87 do to the nice gas prices thinking next the e light fans how much do those run?
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get your truck tuned bro!!! wat are u still doing messing around with that hypercrap?? :bash: ...oh and in my experience, my truck ran a whole lot better with my stock muffler than with Flowmaster, thats why i switched to Magnaflow. :thumb: