35 CABO FLYBRIDGE REPOWERED WITH CUMMINS C-450s  
OLD CAT 3208s 375hp HAD VERY LITTLE ROOM TO WORK AROUND THEM.
THE OLD EXHAUST DID NOT OFFER MUCH FALL TO WATERLINE WITH ORIGINAL 3208s AND RELIED HEAVILY ON SURGE TUBES TO KEEP WATER OUT OF ENGINE
WE ENGINEERED AND FABRICATED CROSSOVER EXHAUST RISER AND SUPPORTS FOR THE NEW CUMMINS RECON C-450hp
(port side)
EXHAUST RISER (starboard side)
WHEN WE INCREASE HORSE POWER,WE USE DQX PROPS  OR Z/F FASTER PROPS WHICH HAVE A HIGHER BLADE AREA RATIO  (.81)
WHICH HELPS KEEP TIP CLEARANCES AT 15%
YOU CAN SEE WE STILL KEPT THE CABO SURGE TUBES