Driving with headpipes on manifolds ... ok?

Im about done with my V8 swap. I bought TTI head pipes to go on my HP manifolds. They fit really nice BTW. Anyway, think it’s safe to drive it to the muffler shop 15 miles away to have him finish the exhaust? I’ve done it with headers, just not cast iron manifolds. Thanks
Hi, I was wondering if you thought there was an advantage to buying the TTI head pipes vs letting the muffler/exhaust shop fabricate the whole exhaust system?
I will need to get an exhaust system fabricated from the HP 340 manifolds back on a '67 Dart.
Any reason you didn't buy the H or X pipes too, or the whole exhaust system?
I tried to PM you but your in box is full.
Ray