I am adding 2 Magnaflow High-Flow Cats and a 3inch cut out to my stock setup stock headers, pipe etc

 

You may see up to an extra 10 horsepower at the wheels.

 

think u could estimate how much total HP i have gained wit my mods? SS Intake, SS Hood, Cutout, Highflow cats, flowmaster 80 series muffler

 

I've got the same question...Got a complete Borla exhaust setup...Cost me 900 dollars, NICE sound to it, Wonder how much HP I got

 

a full exhaust i think adds like 10-25 not for sure tho

 

10-20 sounds about right

 

Iam pretty sure he only has the cat-back.. which will not be 10-20 hp.

 

There may be a gain of 10 horsepower at the wheels with just a catback, but 20 is very unlikely. They were referring to a complete exhaust system adding up to 20 horsepower which is very possible with headers.

 

"SS Intake, SS Hood, Cutout, Highflow cats, flowmaster 80 series muffler
"

i would guess 10-12hp. the cats aren't helping much as is retaining the stock pipes...and with the cutout...the muffler is not in the picture. and the SS hood is really not that much of a mod.

did you add an aftermarket lid when you did the "ss intake"?? if you did i would boost your total gain up to 15hp

for the other guy...a borla catback should have gained you about 10-13hp overall...assuming you use the "wide open" plate. could have gotten the same gains with a $400 catback like magnaflow and a $30 cutout

 

I bought the True SS Camaro Intake from SLP the Ram Air box and i made the hood Functional

 

i guess i'm not familiar with the kit...but sounds like it probably has a lid...which will help.

 

If you really want to know exactly, you should have took the car to a dyno before and after your mods..... But that is expensive.

 

What do you mean by stock headers? Exhaust manifolds? Whats wrong with the cats that are on the car? And you might what to check to make sure a 3" cut-out is the right size for your stock "pipe".