Message: I just bought DT Headers, a carsound cat and a Mopar Computer for my truck. Then engine's got 112,000 on it. I have a Flowmaster muffler w/split duals already on.
I'm wondering if the cat on my truck is restrictive. I read somewhere on this forum that the oem cats are already hi-flo. Is this true, or would I benefit much from a new cat?
Also, how many of you have felt a easily noticeable difference in power with the Mopar computer?
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Subject: Hi-flo cat on '94 Dak w/318?