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      01-17-2013, 08:21 PM   #15
Hill Country F90
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Drives: F90 M5
Join Date: Apr 2010
Location: ATX

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Originally Posted by mdrobc13 View Post
Hmm.. I already have a Dinan Stage 1 and an Eissenman Race exhaust so I figure the Inter-coolers would cost just $2500 +$900 to Stage 4 as you say. Not sure benefit of the LSD yet but looking closely. Would like to see if anyone has done either of these big upgrades before to a 550i tho.
Oh yes...sorry I missed that you already had the Eissenman Race exhaust, so no need to get the Dinan exhaust. Don't forget labor costs for the inter-coolers, which would probably run around $500.

I just cant justify spending 3k to go to stage 4. Diminishing returns start to kick in when spending that kind of money for maybe a 20 hp bump.
2018 F90 M5
2015 F80 M3
2013 F10 550i MSport
2011 E92 M3
2008 E92 335i