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hey guys,
i'm on replacing a 4-1 header to my engine but i don't know if i have to remove the heater box(not a must to me in this weather) and add a "L" pipes or leave the heaterbox, does the heaterbox make a big exhaust restriction or not. i heared some ppl talking about removing it and then the replacment pipes produces heat under the cyl-head wich is not good, is that right? i need ur advice before doing anything, thank's in advance. Michael |
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