on an N/A 6.2 how big is to big for exhaust i was thinkin at least 3 inch duals:grd: i have 2.5 on right now on the gas 350 but if less back pressure on an N/A is better would going that big hurt it? also i have a 3.5 cowl hood on the truck does anyone think that will help air flow or should i do morei was planning on running the tallest air cleaner possible because clearance is not a problem, what is the most power that can be achieved from an N/A diesel

NOT much power but all those things mentioned will aide in a minimal way.

On teh exhaust, here's a hint, go look at the classifieds of this site and look in the "You Pay Shipping" section. MANY people with Duramax's give away or sell for really cheap their stock 3.5" exhaust. Why not buy one or two of those and fab up the rest to make it fit on your truck. Shouldn't be too ahrd to get a more than adequate exhaust system this way.


Good luck!


C-ya