Exhaust Route On 1989 Dolphin 21Foot

[chefdave]

Hi

does someone have a photo or diagram of exhaust route on a1989 dolphin 21ft. i need to replace my only silencer. while this being replaced need to up diameter form cat back as the pipe diameter is 1 3/4 inchs at most. as posted in other forums on toyota hilux's 2 1/4" gives a power boost and possiable fuel economany improvement. also need to keep fairly quiet so will need two silencers. at present my exhaust follows orginal toyota until back axle then goes in a diagnoal across rear over hang. exhaust is not orginal but well put together pieces. will need to cut exhaust as every join is welded. no sleeve joins any where. i was always told to replace whole system as any new part will put addiation strain on rest of system. espcially if i have 10ft of pipe leading from silencer to rear of motorhome. long pipe always seems to be wet inside from condension.

Thanks

Dave