Roush Raven, sorry to take so long to reply.
I've got the GT TB pipe ready and being tested.
I've got the Cobra pipe also being tested.
With the Cobra pipe being roughly the same as the Bullitt, the Results should be about the same.
I've got some guys who are running dry nitrous which the 100mm works well with.
One of these guys is testing the TB pipe with the dry nitrous, factory 80 meter, and the Pro-M 87 meter on a 99'. The 01' cobra customer is testing before and after with the addition of the 100mm system.
I'll post their findings.