if you read around here, you;ll find people have had quality issues with megan products.
the s-pipe would help in that you would be less restricted since the stock s-pipe is restrictive. this has been talked about w/in the forum
the midpipe will help with the flow and make it louder.
if you do anything, get the s-pipe and something other than megan - greddy, hks, injen are of better quality than megan
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New goal...  yea its an M3! 
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