Intake and Long tube header install
When I took my catback apart to convert to a MagnaMouth, it was VERY sooty on the inside. It wasn't before the TSP LT install. I know this b/c Obviously I took it off when I installed the headers. Gas mileage sucked also.
I ran like this from November 18th - March 12th, so right at 4 months.
Funny you say that, bww3588, new plugs are going in next week......







