Those are copper and may be prone to vibration cracking. Good idea to get things running and then come up with something better. The steel Cummins L10 ones are enough trouble. The best set ups I have done are a flange that fits the turbo with as much steel ridgid tubing as possible, then a silicone hose, then another tube. I think a guy could go to a hyd shop for the tubing and bending. One tip is if you can get hooked up with a heavy duty truck wrecking yard, if they let you wander the scrap pile and core pile you will be amamzed what you will find that no one cares about, dime a dozen. How about 3" CAC tubes in every config possible???