I am also using the Hall 180's with some modifications. W first test fit the headers on the engine when the engine was on the ground. They fit but needed a little tweaking. I decided I didn't like the slip fittings so we welded three bolt flanges to each side. I also cut off the collectors and exited the exhaust straight to the back using 3" collectors. The two main reasons for going to 180's is A the sound. B I'm not really keen on the Panteras exposed mufflers. We closed off the notches in the rear valance where the original mufflers were. Looks much better IMO.
PANTERA INTERNATIONAL
A DE TOMASO CAR CLUB
Presents the De Tomaso Forums
The On-Line Meeting Place for De Tomaso Owners and Enthusiasts From Around the World
Clicking on the banner will take you to the sponsor's website.