shorty headers

[flyinlow]

I am running hooker comps ( 1 7/8 tubes,3 inch collectors)  3 inch h pipes magnaflows and 3 inch tailpipes with bullet mufflers for resonators.

Sounds good . Not too loud when cruising.

If I replace the hookers with Hedman shorty elites with ceramic coating (1 3/4 pipes with 2 1/2 collectors) how much power would I give up?

I am considering this change to gain clearence and reduce underhood temps.

Will I gain lower end torque?

[flyinlow]

Forgot to add, 446 ,eddy heads ,rpm intake, luniti 60303 cam, 3.55,  518 trans.