adding hi-flow cats
09-12-2009, 05:56 PM
#2
I have always heard high flow cats are worthless but I have heard that mostly for imports. Therefore I don't know if they have there place in larger motors or not. As far as messing with your tune they won't make a world of difference. They aren't going to hurt anything but I am sure you will gain a bit more if you have it retuned for the high flow cats. That is if they are actually much help with flow.
09-14-2009, 07:22 AM
#3
Launching!
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Its more of sounds issue with me. If i am just putting around the cackle in the exhaust tone sounds horrible... WOT/hard throttle it's great but just easy driving sounds like crap.
