How is maintaining the tension on the O2 wires snake oil?

I think it's just a nice way of saying you don't have to make the O2 wires longer.

But then again, you beleive that exhaust restriction helps flow (at least, if you didn't, why else would you want PreCats?).

I thought you said you read Maximum Boost by Corky Bell. Doesn't he say that the least exhaust system on a turbo-charged car is the best exhaust system for a turbo-charged car?

I think that Pre-Cats "helping" exhaust flow is pure snake oil.

FWIW...