Looking at buying a new exhaust, currently have a 2.5 strait thro exhaustvthat I don't Like, would like to go up to 3" , thinking of ordering a Hayward and Scott jap angled exhaust andcentre section. Can I bolt this up to the rest of my section till I get down pipe and other part in 3"

 

the 2.5 and 3.0 are the internal sizes. the bolt holes are elongated on the 3.0 exhausts and should fit straight on