As i own a exhaust shop i have made my own extractors to fit managed to get 1 3/4 inch 4 into ones into car tight fit but good performance i was running twin 2.5" exhaust which was nice sound Have just made new twin 3" system is very loud going to take some serious muffler to quieten down just not much room to put it
Pics please??? You need more pics in your thread, especially build pics so old mate here has an idea what he has to do and help him decide on which way to go........ And so I can drool over them.
The previous owner of my car wanted to be able to keep the Australian LS1 sump and made the cross member and mounts to suit. This would have been harder to do intially but awesome now its done. I could drop in another LS1 or any other LS motor very easily.
I updated page one of my build thread (click on my link under these words) to include pics the custom engine mounting.