Just finished downloading The Cruel Sea- Honeymoon is Over.
Listening to everything from Glenn Miller Band (swing) to Van Halen, Steve Vai and Frank Zappa.
I also have Rolf Harris doing Bohemian Rhapsody somewhere, too.
No, the main difference is in the inlet ports.
You buy the extractors for your make of Coroola, for the simple reason KE20 pipes won't fit on a 30 and vice versa.
You would either need to match port your inlet manifold, or find a big port one.
A change to nylok nuts may contribute to the warm and fuzzy feeling, I have them on the Dwarf, so even if they aren't tight, thay either won't undo, or will undo slower than standard nuts.