My bad for not being familiar with the part or spacing what you already told me about it. You could probably get away with just shoving the res-back forward if all you need is a quarter inch more. Tweak the hangers? Make up the diff when you add tips? If clearance was there anyway. Personally in your situation I think I'd splice on an extension to the cut end and burr out the ID real smooth then proceed as you wish. If it ain't long enuf, make it so! Just weld it up using those mega-zap lamps and a magnifying glass! Kidding. Jokes' on me, I have the poppop sound when I lift off the gas. Need more louder radio.