Does anyone know what degree the transom was built on a 1998 26'?

Call the factory. i have always had good luck with them. If no one knows they usualy give you Steve or they have him call you back.

I called and talked to Tim at the factory, he said it was a standard 24 degrees. Someone else told me it was 13 degrees and the standard was between 12 and 15. I am just trying to be certain before CMI makes this exhaust.

24 degrees is the hull deadrise - not the transom angle. You better call back but don't use the term deadrise this time.

Call back and ask to speak with Steve himself. He will either answer or he will call you back.

Just got off the phone with Kenny at the factory, 24 degrees is the deadrise, 16 degrees is the transom angle. Just thought I would post this in case anyone else runs into the same problem.

Did you end up going with the Unitops?

Yeah ordered them today, said it would be a two week lead time, hope they are good on there word!