Thread: Comparison Of ZZP Plog and Speed Daddy Headers

I have the stock flex in my sd's 3.5 years later. Crossover never gave me any issue and the port line up just like my zzp ones do. I'd go sd over anything else but that's because I'm cheap and easy lol

I ported the hell out of the rear manifold and SSEi's don't have u-bend. Add one stainless p-log.

The PLOG that I had was garbage so even made in America from ZZP is not 100% good quality, the flange was welded on backwards so some of the stud bolts did not line up with the engine block and the flange also warped

Originally Posted by tod1d

The PLOG that I had was garbage so even made in America from ZZP is not 100% good quality, the flange was welded on backwards so some of the stud bolts did not line up with the engine block and the flange also warped

At least you had a vendor to help fix the issue china doesn't give full refunds

There is a bolt that if left in the head will hit the plog. Not sure if that's the issue.



The bolt is under #5 spark plug holding heat shield. I ground the head of mine down to clear.

The bolt. Also they are only available in stainless now. Before I believe they were steel.

Good info! Should be fun to see how your car does

RED Ya my Plog I had back when I was N/A cracked uncontrollably.. welded it up and it cracked again lol...that was a few years back so unless they changed their design.. garbage!

I am running a used re-welded zzp power log. I have had it on my car for 3 years and no new cracks as of yet. I saw this product on Jay Leno's Garage that looked interesting called "Lab Metal High Temp". It is a liquid metal puddy-like substance that you can coat on cracked manifolds, cross overs, headers, etc. to fill in and permanently seal the cracks. You coat it on less than 1/4 inch and let it air dry for 12 to 16 hours then you bake it by running the car for an hour to cure it. I am looking to test this product when my power log eventually cracks.

Here is the link to the video
http://youtu.be/RWisGeUpHHc

Just search for "lab metal high temp" on your favorite search engine and check for prices.

If anyone has a cracked manifold and would like to try this method of resealing please try it and let us know!

Originally Posted by wa04compg

At least you had a vendor to help fix the issue china doesn't give full refunds

Don't know, bought third party, PLOG went in scrap metal bin

Wish I had a dyno close by for cheap. I am currently running a PLOG and 3" downpipe setup, and will be switching to headers very soon. Would be nice to get before and after dyno runs made...

Which headers did you buy?

Bought a set of used pacesetters

Should measure them up and I'll add it

Originally Posted by wa04compg

Should measure them up and I'll add it

good idea. When I get them in the mail, I'll do just that

Cool thanx

Are you intercooled? What type of timing you running? I am actually pulling my headers and putting the plog dp on

Still waiting to get my headers in the mail. Curious why you're switching from headers to PLOG/DP?

Because I don't like leaky slip fit connections and want to go turbo at some point...so whether I actually go turbo or not just going to switch