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Header Update
#1

Well I've finally returned to the header exhaust project. There were a few things to work out and my fabricator was injured on his dirt bike. Anyway he's back and the project moves on.



I initially developed the header and exhaust as a racing system. Lightweight with a test pipe instead of a cat and having the ability to install a cat. I found that a lot of people interested, wanted for street use with cat. Many also already have a cat back system either B&B or custom. So Phase 2.



I now will offer the header with a high flow cat (200 cell substrat) that is a direct boltup to stock system or B&B style. Note ,the stock cat back works very well. Very little hp to gain or lose there but improved sound is something many want also. I am also looking at modifying the stock resonator for a little performance , but really for better sound. The stock header and cat are the Main limitations in performance gains.



The nice thing about this setup is there will be a very nice gain in HP and Torque

especially for those who already have a performance chip and some kind of intake mod. From dyno testing the combination of all three areas had the best results.



I will have some pricing next week.



Pete
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#2

sounds great



can we see charts please? i am very interested to see what you have come up with



before and after on the same dyno on the same day would be very helpful - if not the same day, then defintely with all atmospheric conditions the same



also, header and/or cat alone and no other mods would be good, but again as long as there is a controlled baseline it would stil be a good comparison



what did you find the pulse length to be?



we all know from many years of hot rodding that an equal length long tube header typically gives good results up at the top, but at the cost of the bottom, as opposed to the short tube header we have now, which gives good low end and mid range, but not so great at the top - i'm curious to see where your gains are and if there is any other associated loss - i run up at the top all the time, and this might work well for me, but those who don't might not like it if it behaves like every other long style i've ever heard of



good on ya, but let's see some charts please
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94 Midnight Metallic Blue Cab Porsche 968 w/deviating cashmere/black interior and WAY too many mods to list - thanks to eric for creating www.968forums.com



"It isn't nearly as expensive to do it right as it is to do it wrong."
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#3

Buy a header and you'll get all you want !

This is not a top end only header. Has increases all across the board. Just like chips and intake mods just draw another line on top.

I will be at Cyntex on Tuesday with RS and also to collect some data sheets. I'd like to post info but not in current form.

Like I said, the header will work great with chips and intake mods. All three combined put the 968s some where between old and new BoxterS. Not bad company for 10+ year old cars and at an affordable price.

Pete
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#4

***Moderator edit***



(What Bob means to say is that charts help the decision making process. )





again, i eagerly await the results - i am exactly the lunatic customer for one of these
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94 Midnight Metallic Blue Cab Porsche 968 w/deviating cashmere/black interior and WAY too many mods to list - thanks to eric for creating www.968forums.com



"It isn't nearly as expensive to do it right as it is to do it wrong."
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#5

how about if i buy one and then if i see a low end loss, or no gains, i return it?



charts are a must!
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94 Midnight Metallic Blue Cab Porsche 968 w/deviating cashmere/black interior and WAY too many mods to list - thanks to eric for creating www.968forums.com



"It isn't nearly as expensive to do it right as it is to do it wrong."
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#6

Jerry Stahl has been making headers since 1963 and does buck the trend. He is also very successful and continuing to innovate.

My dyno works although different than yours. Numbers are lower but consistant with your results on both chips and intake mods.

Hopefully when I get some data in a easy form to compare I will shoot it to you.

And now with a direct bolt on setup you could be a happy camper .

Pete
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#7

great talking with you on the phone again - always a pleasure - glad i could ask the same questions on the phone that i apparantly was not allowed to here on the forum - it seems that some discussions are not to be had here because it might offend someone's sensibilities - very glad that you don't have that problem - tone is everything, that doesn't come across here, and perhaps the phone was best anyway - talk to you again soon



i look forward to the results
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94 Midnight Metallic Blue Cab Porsche 968 w/deviating cashmere/black interior and WAY too many mods to list - thanks to eric for creating www.968forums.com



"It isn't nearly as expensive to do it right as it is to do it wrong."
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#8

Yes Bob, your phone personality is much nicer than your online personality. Perhaps mine is as well.



Pete, will you offer this setup and how is output affected if the header remains stock but from there on your setup is installed? This configuration complies with the PCA production class rules.



Thanks
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#9

i get that - far too often we add our own voice, or our own misconception, when reading something from somebody else



the goal for most of us is merely to come up with the best stuff that we can for these cars - every one of us wants to see evidence of performance gains before dropping our nickle - that means some hard questions to people developing stuff



i took a lot of heat over my chip results, and had to answer a lot of questions before many could see their way through to a decision



i expect to take a lot of heat over the intake stuff too



that is all fine - it's frustrating, but wholly appropriate - we all, as a society, have a responsibility to each other to insure that claims are real and that things are not misrepresented - sponsors are not exempted from this - neither am i - that's fine, and the way it should be - publishers like eric, in taking on a publication like this website and accepting sponsors, also assume the responsiblity of cop in a much more focused way - they bear a certain amount of legal liability for the claims of their sponsors too - it's the same thing with the magazine - we also have to be careful that our advertisers are not misleading the public, or face potential litigation as a result - it sucks, but it is what it is



i like pete and am really looking forward to working with him - i think he has some great ideas, and a real love for this car - those are two outstanding qualities - i applaud his efforts and certainly feel his pain - i am going through it with the things i am working on too, some of which he will likely be retailing



i hope that by this socratic method, we may ultimately get to the best possible results for everybody, and not get into second guessing motivations, or coloring the intentions of what someone is saying with our own personal interpretation
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94 Midnight Metallic Blue Cab Porsche 968 w/deviating cashmere/black interior and WAY too many mods to list - thanks to eric for creating www.968forums.com



"It isn't nearly as expensive to do it right as it is to do it wrong."
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#10

Pictures? I'm very interested in one within the next couple of weeks.
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#11

    Bruce,

In PCA club racing exhaust is free. You can have a header and any exhaust configuation you want. From my testing the header and cat are the restrictions. From there on back there is plenty of flow. Very little to gain other than less weight and better/more sound.

Larry,

I'll post some pictures of the header but the header to cat piece is at the fabricators. He is making a jig from the first unit.
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#12

I thought I had better header/exhaust pictures on my web site! They stink. They were the prototypes that were on and off the car and not ceramic coated. There isn't even an exhaust tip. I will get the site update asap with all finished components.
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#13

That's a very sweet looking header. I look forward to any further information.
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#14

Pete, is there an update on these headers of yours? Looks good in the picture and I see it is for sale, but no charts.

thank you

Lee
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#15

Lee,



I just finished with the revised header back setup. I will be updating my site very soon. I should have new pricing, pictures within about 10 days.

I will now offer.



Header painted

Header Ceramic coated

Test pipe adapter or high flow Cat to stock cat back or B&B style

My cat back system that can be used with stock header or with my header. This will be stainless direct bolt up with high flow quiet muffler ( 5db louder than stock) finished with polished stainless tip.

All parts will be direct bolt to stock mounts.

Also polished stainless exhaust tip that is a direct bolt on to replace stock item.

Eric K. has been using the header with positive results. He will post some info soon.

I will email you dyno charts tomorrow. I have them at the Barn

Pete
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#16

I'm very interested to see the dyno results. From the pics, the workmanship is excellent.



As for there being very little to gain from a cat-back, it seems hard to believe when you see the pic here:

http://www.968forums.com/index.php?showtopic=1324
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#17

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#18

Can I ask what size pipe is being used?
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#19

We tried several combinations both with header tubes and exhaust. The header back is 2.5". Anything larger resulted in loss of torque. Larger did'nt gain any top end HP.

Pete
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#20

Pete I would definitely be interested in this setup provided it isn't hideously expensive--I want more of a growl and of course any additional HP is great too...
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