Idk if all brands of lts have this problem but i couldnt fit half of the header bolts in so i had to grind down some of the stock studs for clearance.What all did u have to do?
Im sure u could but it would be easier and prolly cheaper to just buy the shorty. Unless u can do the fab work urself.can i have my o/r mid pipe fabbed up to fit lt's or do i need to buy another midpipe