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whats the size of the stock exhaust pipes on a 330i e46

18K views 5 replies 4 participants last post by  idcp 
#1 ·
2.00 or 2.25 couldnt find
 
#6 ·


well this is my idea, i got ebay headers, and i hate the smell of the exhaust with no cats. so i want to cut out my large resonator, and get this cat welded in. looks like it will work perfect dual 2 inch inlets and outlets, made by magna flow
 
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