Im ready to pull the trigger on ARH but have a couple of questions about them or about headers kits in general.

Will getting the 1 3/4" instead of the 1 5/8 give less hp on a N/A? ( im planning on a sc put it will take mea year and a halfyears to get it)

Lets say i get the corsa axlebacks with them. will i get more hp than using ARH with stock axlebacks?

Can i remove the cats later if i get the catted Xpipe?

Thanks

 

I have see a few dyno tests and reviews that indicate you will loose some mid-range torque (and thus HP)on N/A motor. Its not big diff thou, maybe 5HP. I've also seen dyno tests with 1 5/8 tubes on F/I engine making good numbers. So...take your pick.

The axlebacks will likely not make much, if any, difference. Note enough to feel.

To go cat less in the future you would need to get a new mid-pipe or have some one cut out the cats and weld tubes in their place.

 

ok lets say 2 stangs with the same mods but with different size headers (both N/A) race. Who would win?

 

its not going to be that different i dont think....talk to jared at lethal or call brent and ask them what they think.....i know i like my 1 5/8 and i am not going to be going FI so it was easy for me.