Exhaust Plans/ Will this work?

[Blue666]

I'm back from Afghanistan & ready to get my 66 1/2 SWB fleetside back on the road. First up is to replace the rusted out headers & exhaust. I have owned the truck almost 10 years and this is the second set to rust through.

I decided to go to rams horn manifolds & found a set like the picture. The rams horns have a 2" outlet. I don't run my engine @ high rpms very often & I would rather pick up some low end power & mileage improvement.

Behind the rams horns, I want to run a stainless kit as shown, I can get the kit in 2 inch, 2.5 or 3 inch. I'll add some stainless flowmasters to match the diameter.

Is there any problem or likelyhood that by increasing the diameter, I'll build in a power loss?




Thanks for any advice you can provide.

Blue 666