Confused? :confused:
that happenend to me only after the 230 install. ****** melted my cat :oYeah, happened to me on the way to the dragstrip. Car sounded like a can of jellybeans being tossed around.

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Tuning can be a great thing, but I think too many people see it as a 'must' because of the big internet push that tuning gets.
It's only a must in extreme cases, most mild setup cars run decent, fine, or even good without it.Plenty of H/C & header LS1s were around and doing good before dyno tuning LS1s became common.
It seems odd to me because, back when I used to use cats, it was always & only a LEAN condition or afterfire that would end up overheating, breaking up, or melting my cats. Runing rich never casued that for me... I don't get it?
The HPP will raise timing....






