Off-Road H-Pipe
CMOC Veteran
Joined: Nov 2004
Posts: 376
From: St.Thomas
Originally Posted by Ponyryd
The diff is, a 2way cat only works for cleaning up 2 gases like HC and NOX, then a 1way cat is also needed to clean up the HC portion, whereas a 3way cat does all 3, yours are 3way cats.
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kcobra
Mustang Parts for sale
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Jan 3, 2011 09:30 PM
