Guest Twofortez Posted March 6, 2002 Share Posted March 6, 2002 this maybe a stupid question,but i'm asking it anyway....i need to know what size header collector to buy for my 6-2-1 header on my L6.I would measure myself but its already on my current exhaust system,and i really don't want to break any bolts before i take it to the exhaust shop.Going with 2.5 inch pipe,plus Dynomax bullet muffler and a 17.5 x 4" Supertrapp out back,and thought i'd just start from a new collector back if i knew what size i would need.......thankz in advance.... Quote Link to comment Share on other sites More sharing options...
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