Fermanator- how do you like the sound of your corsa exhaust? Do you tow with your burb?
Teh CORSA sounds AWESOME! Everybody that hears always says something about how deep it sounds, yet how quiet it is in the cab. And I tow with it I would say at least half the time it gets driven. Only downfall is my tailpipe doesn't stick out past teh fender, and it goes out at a 45. So if I'm towing a box trailer or something with a flat front the sound bounces off of it and exhos back up.
The testing WAS done with the allison. the duramax/allison was avail 01 prelim testing 99-00 feedback from farmers happened during this time is what i was told and it was @ this time gm isuzu and allison finalized the product and we got the 01 LB7 and allison 5sp with a cattle/ horse approval of the tq management also why most older trucks seem to have a looser tq cuz they do. Gm has tightened it back up over the years to get better fuel eco. And cuz vvgt turbos spool boost aolt smoother
The first DURAMAX test engines were put into the old body style trucks like my BURB, and I am 99% certain they were backed by a 4L80E. There are to many indicators in the DURAMAX design that point to it having been designed to fit into a GMT-400. The creased drivers side exhaust manifold that is a good 3 inches away from the steering shaft in an 01, is in the PERFECT spot for the GMT-400. The front of the oil pan where it is cast to clear the steering linkage lines up perfect for my steering linkage, yet in the 01 trucks it wasn't really needed. The way the downpipe drops down the back of the engine was like it was made for my truck more so than the new trucks. The placement of teh oil pressure sensor clears perfectly whereas the 03+ design would be a pain to get to. The oil filter just happens to stagger into the frame rails just right. There are just to many things that point to it having been designed for the 88-00 trucks, but the ALLISON on the other hand was not. It can be made to clear, but required some pretty extensive floor board creasing whereas the 4L80E just drops in place.