Absolutely, Dave. You have to consider that if the first bend is even off the slightest bit, imagine how that angle will only increase in space the longer the pipe gets. What may be a simple 1/4 or 1/8" up at the front could end up being 1-2" say 2-3 feet down the pipe where it could come into contact with say a trans cross memeber, axle, body floor, frame rail, etc.