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Old 12-23-2011, 08:23 AM   #6

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Drives: 2016 Camaro 2SS BVM 2SS
Join Date: Dec 2009
Location: Charlotte
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Are the gains from HFCs cost effective? I think going from a double to single cat improves the exhaust flow, but as pricey as those solo HFCs are, it's probably not cost effective for you to buy those.

Most of the guys in the LLT group are gaining power because of the headers IMHO. The bigger header pipes are more helpful in gaining HP than switching to HFC.
Formerly owner of:

2012 2SS/RS Build Thread - Totaled by red light runner

2010 LT/RS Build Thread - Traded in for 2012 2SS

2007 Acura TSX

1992 Oldsmobile Achieva V6

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