Headers... with cats... that don't leak... in stainless
 

Are there headers available for a fourthgen F-body that don't leak, that have a y-pipe with cats available that puts the cats at the header (I don't want to move them any further back then required), and are available in stainless?

The Kooks like nice and seem to fit all the requirements, but I'm worried about the not leaking part.

FWIW The catback will be a Magnaflow.

I am tempted to just put the stock manifolds & cats back on with an SLP Y-pipe and like with the 400rwhp limit.

Arh and kooks are the best money can buy with catted y pipe I have arh and love them and no leakes

I have kooks headers, y pipe and their green cats on my Silverado. The product was good, other than the y pipe needing a little tweaking to line up with the manifolds. No leaks. Careful if you call them with a problem. They aren't the most helpful bunch.

I ran ARH LTs on my NBM 01 Z/28 w/ their ARH catted-y as well. No issues at all, great fitment and no leaks. The POS QTP LTs that I took off that car were another story, lesson learned, buy it right the 1st time.

ARH is what I run and they are simply an art form, excellent quality and no leaks. Kooks are another great option. use an original gm mls header gasket and good band clamps and you'll be fine

As others have said, I don't think anyone has ever had problems with ARH or Kooks. In the past I'm sure everyone would have recommended ARH over Kooks but Kooks redesigned the merge for their Y pipe now and it looks good.

I have ARH with their High flow cats and their Y all in stainless and I have no issues since they were installed
https://ls1tech.com/forums/generatio...installed.html

Me likes the ARH or Kooks!

I have an ARH catted Y pipe on my 2000 SS that I'm considering selling... I want to buy a new Y pipe without cats.

I think not leaking has more to do with the quality of the clamps than anything.

We appreciate the good words!! Thank You for choosing ARH.