2 or 3 piece exhaust manifold and what brand?
 

I am looking for an exhaust manifold to replace my stock one. I tow a 31' Travel Trailer and want to lower my EGT's. What brands should I look at and are there any to stay away from? Any and all help including prices from dealers are welcome. I will port it out myself before installing. Thanks ;)

Any after market is better than stock doesn't matter pick one you like!

3rd gen style manifolds can be had in a 2 piece while 2nd gen style can be 3 piece. Money can definitely be better spent elsewhere though. 60% over injectors with stock turbo and cp3? There's your egt problem...accompanied by the edge tuning....

What would you suggest?

A turbo or turbos and smarty (03-05) or EFI (06-07) first. Then a stroker or dual cp3s. If funds allow, I'd recommend a stock/s475 setup.

MORE BOOST! talk to the boys at Industrial Injection. my egt's dropped when I put the phat shaft on. Windowpiss injection will also help.