[Aussie Mike]

I bought the DiFilippo kit to build mine. Darren's shop is just up the road from me and I talk with him pretty regulaly.

If you are building headers for side pipes you will probably need more 45 degree bends than 90's. I probably used about 10 or 12 45's and 6 or 8 90's to do my headers.

The kit has heaps more bends than you need but just ask Darren to swap a few of the 90's for extra 45's when he ships it out.

Cheers