SS_Firehawk

Make sure the M370 intake manifold is installed correctly and with a good seal. I lost nearly 100whp on a bad install and had to get it corrected. It will sound very very different from anything else if it's the case. Also what type of dyno is it, what was the daytime temperature, and at what elevation were you at? Stock cats would not be the culprit. They are restrictive, but not that restrictive.

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