Basically, Cummins can't sappy the current diesel engine (270 HP) for the Breeze, so Tiffin is putting the 340 HP engine in its' place. Pretty strong rumor going around that Breeze is on the way out and the new replacement will be the Allegro RED 340 33AL. It will be a 35 foot long coach. From what I have read about it, I think the "L" designation is referring to it's being lighter than the RED 33A due to different chassis, electric slides instead of hydraulic, etc, etc and priced at about $240k rather than around $280.
2019 Tiffin Allegro Open Road 32SA
2008 Jeep JKS Toad
F53 / 24000 # chassis