Good Header replacement for cracked header?

[89Daytona]

.... Just get an exhaust wrap for it.

Why do you say this? I've heard that header wrapping can cause warpage of the header and mounting flange.

 

[Frank Z]

What are you APN guys using for a downtube? I like the price of the APN, but I also don't mind buying quality.

I'm also looking at Kevin's system ( http://www.kevinsjeepparts.com/exhaust.html ), because my cat and muffler are original '96 parts, and in need of replacement.

It's seems that the original downtube is a huge source of restriction.

Steve

OEM tube on mine. May replace it at some point.

 

[SteveT]

OK, now I'm thinking economically. Any one have an opinion on this muffler?

http://store.summitracing.com/compare.asp?N=700+400238+320931+4294791975+115&autoview=sku


Sorry, let's try FLO-42541-OR for a part number, or try this link

http://store.summitracing.com/partd...~42543~OR or FLO~42541~OR&Ntk=&rsview=sku&Ns=

 

[89Daytona]

OK, now I'm thinking economically. Any one have an opinion on this muffler?
http://store.summitracing.com/compare.asp?N=700+400238+320931+4294791975+115&autoview=sku

Link doesn't go to any products. It says
"Part Comparison:
There have been no parts selected to compare. ....... In order to use the compare feature, you must have Java Script and Cookies enabled"

So you would have to give us the part number..

 

[selarep]

Why do you say this? I've heard that header wrapping can cause warpage of the header and mounting flange.

Never heard anything about that. It would keep the underhood temps down by a lot and also it is a lot cheaper then getting them ceramic coated.
How would the wrap warp the manifold or the flange? The header runs naked OEM and it's way hotter then a wrapped on and it doesnt warp...

 

[89Daytona]

Wrapping a header keeps the heat in it, so how could that not make the header be hotter than an unwrapped exhaust. More heat cause an increase in metal expansion, which can lead to warping. Header warpage after wrapping might just depend on the type of application and header material and thickness used (more likely to warp if its a cast header).

http://www.centuryperformance.com/heatwraps.asp
http://forums.mg-rover.org/showthread.php?p=2046651

 

[XJLI]

Just an FYI, those skid plate FLowmasters weigh almost 100 lbs...

 

[selarep]

Wrapping a header keeps the heat in it, so how could that not make the header be hotter than an unwrapped exhaust. More heat cause an increase in metal expansion, which can lead to warping. Header warpage after wrapping might just depend on the type of application and header material and thickness used (more likely to warp if its a cast header).

http://www.centuryperformance.com/heatwraps.asp
http://forums.mg-rover.org/showthread.php?p=2046651

Wow, didnt know that, thanks for the info

 

[SteveT]

Just an FYI, those skid plate FLowmasters weigh almost 100 lbs...

Strange...not mentioned on the web site

Think I'll pass.

 

[Frank Z]

Just an FYI, those skid plate FLowmasters weigh almost 100 lbs...

Care to post a site that can back that claim up?

 

[cjben]

if you are talking about a regular flowmaster for a jeep,i have one in my garage,and i gaurantee it doesn't weigh 100 pounds. i doubt it weighs 25 pounds.

 

[selarep]

if you are talking about a regular flowmaster for a jeep,i have one in my garage,and i gaurantee it doesn't weigh 100 pounds. i doubt it weighs 25 pounds.

he's talking about the skidplate flowmaster, not the regular.
100lbs is a lot... damn