Flex Cast Iron vs Flex Stainless ex Manifold
I will be cringing with ever bolt as I take out :fear: A previous owner installed a POS Banks exhaust manifold that now cracked. I am soaking the bolts with penetrating oil every night. Other “car” forums say cast iron is better because it won’t crack as easily. I don’t care as much about performance as I do reliability. Both manifolds below have the flex tube on 1 and 6. What is the general consensus of the Jeep forum advantages/disadvantage of cast Iron vs. Stainless?
Crown Exhaust Manifold cast Iron
PART#: 4883385 MFR#: 4883385
A1 Auto Exhaust Manifold Stainless Steel
with Gasket Kit from 4.0L 242ci
The tubular steel one is fine. I've used the $65 Ebay ones myself with success, but have heard of those cracking, too. My guess is they all do unless it's the 2-piece factory one, but that can be expensive and custom.
For the price, durability, and even comes with a gasket, I use the Ebay ones.
Get an OEM 2000+ one and have the "Y" pipe made at an exhaust shop...
Do you have any more pics of how your "Y" pipe is routed?
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