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

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Nov 9, 2014 | 02:33 PM

98_1LE

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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.

Nov 9, 2014 | 10:48 PM

99 ss

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From: Desmoines iowa

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

Nov 10, 2014 | 02:33 AM

Brian Hoss

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From: Seattle, WA

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.

Nov 10, 2014 | 07:21 AM

03Sssnake

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From: H-Town/Cypress

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.

Nov 10, 2014 | 07:38 AM

redbird555

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From: Pompano Beach FL

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

Nov 15, 2014 | 02:37 AM

LS1nut346

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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.

Nov 15, 2014 | 05:40 AM

sleepinghawk

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From: Fredericksburg Va

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