Thanks for the feed back, really it was only common sense to sit back and look at the connecting engine pipe and heat riser to see that it did not need a sleeve and donut, its just that the support guy from Corvette Central was so sure in his email that I neeeded to use them. When I emailed him back with year of the vette then he agreed that I did not need them.
All in all it was a pretty painless job, I took the engine y-pipe off first, then droped the cross member and the whole system was easy to remove in one piece, alot easier than trying to undo the rusted bolts on the original cat and remove the mufflers while lying under the car.
The new dual went together well, all the right bends and curves in the right place, I suppose it took 3 hours to put together including new centre clamps and making sure it wasn't going to hit or rub on the body.
When I finally started it up and checked for leaks, I found one very tiny leak coming from the weld on the right hand side engine pipe were the 2" goes to 2 and a half. how frustrating had to take off the pipe and spot weld the hole (luckily I have a welder in the shed), put it back together and all is good.
Now I have a V8 that sounds like a V8 should, at idle it gives out a nice dual note and rumble when applying the power, not tooooo loud as to get the attention from plolice but just enough that people look and also hear a great looking Vette
Now on to the next project of putting a new transducer on for the cruise control and getting that sorted
Regards
Andy
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