[JANNETTYRACING]

Originally Posted by Sweet15

So, I've got all ordered and on the way.

Whipple, LT4 HPFP, LT4 injectors, DSX Aux fuel pump kit, Roto-fab dry CAI, Mighty Mouse CC, NGK 6509 plugs, and LS3 front seal.

So my question is about headers / exhaust. I have a 18' 2SS A8 vert w/NPP so I want to keep it kind of quiet. Had a 15' SS that was S/C and cammed with Stainless Works that was pretty loud, had to pull over to talk on the phone LOL.

So getting mixed opinions on needing headers / exhaust. Is it necessary; some say stock set up is pretty good up to about 700 wheel hp. As a vert I would want to get catted if I went with headers due to the fumes. I would like to get over 600 to the wheels, so I think I should be able to tune it between 8-10psi with the fuel upgrades, which should get me there or close ? Don't want to do meth or E85, will be tuning to 93.

I looked at TSP 2" w/ catted to NPP; however being a vert they suggested the 1 7/8 instead for fitment. Some other brands cat back/axle back won't even work with a vert from what I saw.

So, is it necessary or will the stock set up be fine ? No sure the word necessary is right. Maybe is it needed ?

Thanks all ...

A lot of people have done a lot of different combos but that doesn't mean any of them are right.

Think of it this way, your going to be pumping 50%-75% more air and fuel in to the engine this should be balanced with exhaust flow improvements.

Ted.