I installed a catted highflow down pipe over the weekend. After about 30 miles it threw a CEL. I installed the O2 extension on the 2nd bung and cleared the CEL. The CEL hasn't come back, but I noticed a slight decrease in gas mileage. Has anyone in this situation experienced this? Thanks GIB
So I've been digging through a lot of the posts regarding down pipes.
I'm in the market and have my mind set on 2.5" catted high flow.
With that being said, let's compare... thoughts? concerns? discussion? arguments?...
Initial release/group-buy price: $339.15 (ends sept. 30)