Posted 04 November 2016 - 08:10 PM
When people mention Castlemaine pipes, keep in mind there are 2 companies out that way. CRS (Castlemaine Rod Shop), and CAE (Castle Auto & Electrical). Both used to sell pipes. I assume they still do.
I've been out of the game here for quite a while, but check their respective websites.
I've had success with CAE Tri-Y's, and have heard of others with fairly good feedback too. On the other hand, others have had to modify them (from both companies). CAE did update their offerings a while ago to offer bigger primaries too (from memory 1-3/4). I remember thinking at the time they were probably the best offering available.
Hurricane used to be another option. I think Pacemaker ceased their offering.
For really serious/hardcore pipes I would think custom made will be the go. But don't write-off some of the smaller off the shelf pipes - for mild combos (say under 450HP), they can still net good results.
There are several threads around if you can find them. Have fun!