thanks for the link. what i'm worried about is the whole concept that the engine relys on vaccuum to get enough air. so with no restriction at the cat, the amount of vaccuum at the intake is compromised... hence no juice... especially at the high end. What i'm unclear about now is whether having a hollow cat chamber (is that the term?) is creating a problem. The cat is empty, so it's not as if there is a simple pipe in place of the cat.

You mentioned that you suspect that there might be some crap further down the line. Where do you think that would be, and how would it have gotten there?!

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100 km/h is unsafe... it's fast enough
to kill you, but slow enough to make
you feel safe.