Jeep exhaust Manifolds instead of headers, are these the large opening manifolds?

Brooks James said

IIIRC, the 2 1/8 mag manifolds we're on on 92-3 ? Dakota RT 360 mangum only
They were only 3 or 4 more hp than std ones on the Dyno
The difference between 340 and stock was 7 hp

Click to expand...

I have a drivers side '93 Manifold that I couldn't use because I have PS. I went with the 340HP on the drivers side and the '93 Magnum on the passenger. and yes the openings on the Magnums are 2 1/8" and the 340's are 2 1/4". I opened the Passenger side up a bit to come close to matching the 340.