It is a widely known fact that getting any significant power increases out of our M54B30 motors without forced induction and other supporting mods is indeed very difficult. I doubt the Dinan mods actually bring the power to that level; what the manufacturers claim and what is reality tend to be different things, so take those numbers from Dinan with a grain of salt. Realistically, those mods probably wouldn't net you more than a 10hp increase, and that's being optimistic.Originally Posted by ohioandy330i
What they lack in added power, however, they make up for in the overall experience and feel of the car, and that in itself may be worth it. If I was in the market for a ZHP, I wouldn't hesitate to buy a Dinan-modified one, because I'd know that the mods on there have been extensively tested by Dinan.
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