Novak Conversions Jeep Wrangler JK shifters

Exhaust manifolds

longlivenintendo

JK Enthusiast
Joined
Dec 20, 2022
Messages
147
Location
new york
Hey yall. Getting ready to do a head gasket repair and since I think I have the original manifolds on at 211k I figured it'd be time to replace these as well. Just curious to know if anyone has gone with the AFE or the red rock manifolds (I've read about the red rock having a shield that gets in the way and people cut it off and then put boots on to protect the wires) but other than that do people like them? Or should I just go with Dorman or crown ?

Thanks!
 
I am inclined to say that if the OEM style gave you 211,000 miles of (relatively) trouble-free life out of them, it would make little sense to deviate from that. This is particularly so since you're not going to get any appreciable performance gains out of them either.

Very fair point sir.
 
Has anyone used the ATP or Dorman manifolds? They are designed to be OE . Curious to know if anyone knows a noticeable difference in them since they are in price
 
I am inclined to say that if the OEM style gave you 211,000 miles of (relatively) trouble-free life out of them, it would make little sense to deviate from that. This is particularly so since you're not going to get any appreciable performance gains out of them either.

Agree with this approach! It can be applied to many other parts as well. I chuckle to myself when someone gets 100k, 125k, etc out of an OEM part and then categorizes it as "junk". 🤷🏻
 
I don't know.
My Tacoma has about 175k. the Jetta is about 190K and the F250 is at 240K.
Have any of them suffered at exhaust manifold failure?
No that's not a thing.
S10 at 170K nope!
No reason to invest in crappy Mopar/Subpar parts!
FYI 3.8L cracked exhaust are typical.
More D students from Mopar.
 
I don't know.
My Tacoma has about 175k. the Jetta is about 190K and the F250 is at 240K.
Have any of them suffered at exhaust manifold failure?
No that's not a thing.
S10 at 170K nope!
No reason to invest in crappy Mopar/Subpar parts!
FYI 3.8L cracked exhaust are typical.
More D students from Mopar.

Anecdote is great and all, but there are dozens of examples going back two decades of cars and trucks having similar failure rates: Ford EB’s, Jeep 4.0’s, Hemi trucks, every 4-cyl GM Ecotec, Pathfinders, Forester and Outbacks, 351W Fords, every Porsche ever made, etc.

I’d argue that after 30+ years of wrenching, my guess would put aftermarket headers failing at 2-3x the rate of OEM manifold designs. There would be little advantage of compounding a shitty design with an even shittier design, especially since there’s no “stand out” option known for eliminating the issue…
 
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Novak Conversions Jeep Wrangler JK shifters