Headers/ypipe question

[2016YUKONSLT]

The new gen exhaust manifold are high flow and will not net that much hp, the real restriction lies in the ypipe which is where you get the most hp gains but since you'll upgrade to an aftermarket ypipe might aswell get the headers

Ive seen 20-25 rwhp gains with headers+ypipe.

And yes you need the tune, otherwise your car will run rich and get worse mpg and possibly less hp than stock.

20-25rwhp for headers/y-pipe seems to be pretty normal. I remember picking up 15-20 rwhp with shorties and around 30 with long tubes on my f-bodies.

How much of a gain would you see with a y-pipe though, if it is the restrictive part of the exhaust?

 

[NORCAL SS]

Getting rid of cats like 10 to 12

 

[2016YUKONSLT]

Just getting rid of the cats in general will yield hp(better flow), but he said the y-pipe was restrictive. Is it crimped, flattened, not mandrel bent?

 

[NORCAL SS]

if you can have a shop do a 3 inch y pipe and mate it to a cat back exhaust that will flow very well.

 

[Kingmarchil]

Just getting rid of the cats in general will yield hp(better flow), but he said the y-pipe was restrictive. Is it crimped, flattened, not mandrel bent?

Its flattened to not hang lower than the underbody, take a look under your car and you'll 100% understand.

 

[2016YUKONSLT]

Tony, what does a ARE setup cost?

 

[NORCAL SS]

The 6.2 y pipe fits the 5.3 and is bigger exit.

 

[2016YUKONSLT]

How much does ARE headers and ypipe kit cost for 5.3l 2016 yukon?

 

[NORCAL SS]

Do American racing headers no cats. Period