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      08-30-2014, 04:21 PM   #4
Route 16
I got lei'd
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Drives: '10 E90 M3
Join Date: Sep 2011
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Quote:
Originally Posted by TheAxiom View Post
But will it really be cheaper?
You could just buy some headers and swap them when you need to - or you can buy 2 highflow catalyst and have to pay someone to weld them in....

Or just buy AFE/Euro headers (the Euro headers probably wouldn't gain much over OEM)
$200-400 i'd imagine per cat. Haggling with install/uninstall with different headers is a waste of my time imo. I'd rather go for one long lasting solution. Putting high flow cats would be optional. I wouldnt think smog guy would look for an oem stamp then the other thing is if it passes the sniffer test (performance/sound is up to debate on research from other forums)
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