FABSPEED MOTORSPORT | 991 GT3 / GT3 RS Long Tube Competition Race Header System
 

Fabspeed Motorsport is proud to announce the launch of our Porsche 991 GT3 / GT3 RS / 911 R Long Tube Competition Race Header System.

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When the first 991 GT3s landed on North American soil, our engineering team immediately got to work and developed a Race Header to maximize the performance of the track weapon. Our initial short tube modular header design was very successful, but there was a demand for more. Consequently, we were approached to enhance a GT3 RS and welcomed the opportunity to refine our long tube header design further. After extensive development, including dyno and track testing of various designs, we’ve uncovered the correct formula to unlock the maximum performance and exhaust flow from the Porsche 991 GT3 / GT3 RS / 911 R.

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We can certainly craft our own collectors but we always keep an open mind and consider all options. We decided to source the highest quality collectors and the years of experience that comes along with them - we’ve happily paired up with Burns Stainless. One of the key features of the system is the Burns Stainless slip on collectors. If you are not familiar with Burns Stainless - their merge collectors are motorsport proven and have been widely used in NASCAR, NHRA, ALMS, FIA-GT, and Grand Am as well.


Our decision to utilize Burns Stainless slip on collectors was easy, their superior design and 30 years of proven performance in motorsport racing provided more than enough reasoning. Their collectors are custom engineered using Burns' proprietary X-design parametric computer program. The collectors combine high flow and high velocity to increase and broaden an engine's torque curve all the way to the horsepower peak and beyond.

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Throughout the Long Tube Race Header development process, we also took a look at our Side Muffler Bypass Pipes and how we can improve them. In our quest to provide the highest quality exhaust solution for the 991 GT3 / GT3 RS / 911 R, we have decided to utilize premium Helical valves.

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We chose to use Helical Valves for their unprecedented quality - which has been proven by many OEM manufacturers such as Porsche, McLaren, Ferrari, Lamborghini, and many more. Helical valves are an integral part of our Side Muffler Bypass pipes, opening and closing with precision to control the gas flow and optimizing engine back-pressure for improved performance. Helical’s extensive experience in high-volume OEM automotive applications has led to standard features such as an extremely durable pneumatic actuator, precision flat sealing faces inside the valve, stiffening ribs and high-temperature bearings at both ends of the butterfly spindle.

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We also relocated the O2 bungs from the collector of the headers to the Side Muffler Bypass Pipes in order to maintain factory-like functionality with our Long Tube Competition Headers - allowing them to read all cylinders while maximizing the performance of the collector.

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POWER:
We developed our headers to make power with and without an ECU Tune. While the hardware made significant gains alone, we found its full power potential was realized when combined with our proprietary tune. As tested on a GT3 RS, our Long Tube Competition Race Header System with ECU Tune adds 38 whp and 26 ft/lbs of torque at 7650 RPM. Further down the rev range, our Header System gives you major mid range grunt: 24 whp and 28 ft/lbs of torque at 4500 RPM. Without the ECU Tune, you can expect solid gains of 24 whp and 16 ft/lbs at 7650 RPM and 23 whp and 26 ft/lbs at 4500 RPM.

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WEIGHT:
Our header system weighs 36lbs less than the factory headers and side muffler bypass pipes.

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The Porsche 991 GT3 / GT3 RS / 911 R Long Tube Competition Race Header System is the culmination of Fabspeed’s 25 year commitment in engineering and manufacturing the exotic car performance products. For further information and pricing, please visit the product page HERE.

If anyone has any interest or questions, please feel free to give me a call/email/PM in my signature below.

Looking good guys. And very competitive pricing. :biggulp:

Very nice looking kit with nice performance. Do you have numbers for a GT3 too?

Nice!!!! Well done! I'm happy to see you guys pushing to innovate! :bigbye:

Pricing is competitive considering the following.
Cost on Helix flappers is not inexpensive. Bulk pricing, if I am not mistaken, is ~300 a piece.
Burns collectors also pricey. Vestment casting of the header flange is also pricey but quality. CNC tube bender is nice cause angle is not dictated by a J bend. So with all that being said $5500 is fair price.

Thank you for the kind words! Your car looks awfully familiar, I wonder where i've seen you before haha

We had a GT3 in house for a number of our preliminary prototypes, and the gains we saw were just as impressive as that on the GT3RS. We did not have a GT3 local to dyno the final version, although based on the previous prototype R&D data and results on the RS we are expecting just as impressive numbers. I have a few local GT3 guys that i'm teasing to come in, although the lovely PA winter weather is putting a damper on things haha.

Thanks Phil! We are up to the challenge and striving to improve keeps the industry moving forward :cheers:

Hi John,

Vince from Burns here.

Glad to see you got the headers built and in production. They look great! Love the flanges. They look to give a real smooth transition from the port. This is where the gases flow the quickest and can lose energy if not done properly.

The dyno curve looks great as well. You were able to pick up the power all the way through the rpm band - that 's the merge at work. That will really be fun to drive. I like the way the fit up snug in the car too.

Talk to you soon,

I agree on investment casting of the flanges. Very clean.

Hammering a round pipe to fit a water jetted flange is not nearly as "clean"

Fabspeed, take a close up of the flange so we can have a better look.

Hello Vince,

It was great to chat with you on the phone a few times, and what a pleasure to see you here on the forums as well! I appreciate you chiming in and the compliments, we put a lot of effort into the R&D to maximize the potential of your merge, and am thrilled to see you pick up on some of the underlying gems of the design :)

Beautiful 993 by the way :cheers:

Thanks Nick! I'll chat with our marketing guru tomorrow morning and see what pictures I can get.

Fellow Rennlist member Nick Yoskin stopped by with his GT3RS this past week for the installation of our Long Tube Competition Race Header System.

"The power improvements were noticeable as soon as I hit the first on ramp! The increase in midrange torque is noticeable when rolling on the throttle thru long sweeping turns. Once out the turn the bump in horsepower is felt all the way to red line!"

Here are some pictures and video of the experience. Sound is off the hook and the performance gains give a heck of kick over factory! If anyone wants to chat about the upgrades and/or are interested in picking up a set, give me a shout anytime :cheers:

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Details, details. Let me know if you have any interest in or questions about our Long Tube Competition Race Header System.

Will be giving you guys a call when my 991.2 GT3 comes. The 1/4 mile posts from Nick have convinced me. Seems like his car made a lot of power stock though.

Have you made LT Sport Header w/Cats yet?

Below is the dyno graph from Nick's car with just the hardware no software. Nick's car is throwing down no doubt, but it definitely saw a great improvement from our package. Very much look forward to working with you on the 991.2, i'll PM you to follow up and we'll make it happen : )

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Sounds nice and deep, welds look amazing, and it's competitively priced. Can't wait for my 991.2 GT3 to arrive. This might be the first mod. :D

Fellow member and 991 GT3RS owner Nick Yoskin just ran a 10.62 at 132mph, equipped with just this Long Tube Competition Race Header System (no tune!).

Funny, I couldn't break into the 10's or 130's with my modded 03 GT2 w/ 650hp! Very nice.

Tell me you still have this car :burnout:

Long story, but unfortunately not.

That's a shame, but hind-site is 20/20 I suppose. What are you running nowadays?

Here's another clip of the Long Tube Competition Headers at work on the 991 GT3RS!

Do you have any more videos inside and out of the car accelerating? I haven’t found any other good ones. Thanks

See if this one fits the bill! Dyno run acceleration, outside the car acceleration, and a few pulls from inside the cabin. Enjoy!! :rockon:

Never been a fan of header exhaust modifications on my cars.....did the Sharkwerks on my '15 GT3 and really loved it....bought my RS a couple months ago and there was a lot of confusion on what the car had....the GM and SA really didn't know....all they could say was that it had a Fabspeed Mini Maxflo and the guy spent about $7-8K on it.....

So I get the car and the thing sounds amazing....absolutely insane....Never once did I look under the car.....I'm a t my first track day and getting a lot of compliments on the sound and the guy running the event asks me what's on it....I just say FS Mini Maxflo....he looks under the car and says there's headers also....no way, was never told that....long story short the car has the Sport Headers and Maxflo exhaust and I'm sold!.....FS makes a great product....Love it

Thanks for throwing in your positive review good sir! Headers can make all the difference. Eliminating the factory cats gives you a huge boost in power! Now we just need a video of your setup... any clips from your track day? Looking forward to seeing what setup of ours you've got! : ) :cheers:

Your welcome....great product....will definitely get some pics and video:rockon:

It's nice to see you are happy with your Fabspeed exhaust, great product and comments like this is why I chose Fabspeed also.

Thanks for the kudos Rob :cheers:

And looks like they changes their warranty policies (for a small fee) so the second buyer can rest assured that things are covered....

I would like to see LT Headers with Cats that do not delete the side mufflers for the .2 GT3

That would be fantastic. If only we had the space. Unfortunately, there is only so much space to do everything. You can't build the LT headers correctly without getting rid of some pieces to the puzzle. Long tube with a cat and side mufflers would be to long to fit in the envelope of the car so you have to get rid of something.

Hi Fabspeed, I had a few questions in my previous thread I was wondering if you could help answer.

1. Are 991.2 headers new or the same as the ones before for the 991.1 GT3 and GT3 RS?
2. Are they made out of 321SS or T304? Is T304 suffice or is it more likely to crack than the 321SS?
3. Will the o2 bungs that eliminate CELs. If there are any CEL’s can we return the product. The Dundon o2 bungs look much longer, is the reason I ask.
4. Can you make valveless side pipes or a single side pipe to work with aftermarket rear center sections?

Thank you

1. Are 991.2 headers new or the same as the ones before for the 991.1 GT3 and GT3 RS?
Yes - just verified them to fit the .2's
2. Are they made out of 321SS or T304? Is T304 suffice or is it more likely to crack than the 321SS?
T304 - fatigue strength/temperature factors between T304/T321 are minimally different and T304 has proven to be more than sufficient for these applications.
3. Will the o2 bungs that eliminate CELs. If there are any CEL’s can we return the product. The Dundon o2 bungs look much longer, is the reason I ask.
We have a great success rate with our O2 Sensor Spacers w/Mini-Cats but can never guarantee them to 100% prevent triggering Catalyst Efficiency CELs.
4. Can you make valveless side pipes or a single side pipe to work with aftermarket rear center sections?
Yes - we offer our Side Muffler Bypass Pipes in Valved or Non-Valved

Feel free to PM me with any questions or forum pricing :)

Thank you!

Ultra Violet 991.1 GT3 RS - VS - Miami Blue 991.2 GT3 - Both equipped with our Competition Long Tube Headers

We were lucky enough to have both of these gorgeous machines in the shop at the same time - so we had to have a friendly competition.

Who do you think the winner is?


For more info: https://www.fabspeed.com/porsche-991...header-system/

Sort of indistinguishable.. as one would expect no?

Never understood the point of a "rev battle" with the GT3 at a standstill, can't rev the car past a certain RPM and they all virtually sound the same.

Can we get some in-cabin video or fly-by's?

The Long tube headers for this car REALLY kick ass...nice competitive pricing guys.

Let me see what I can do :)

They really do - thank you!

Hey Alec. What's your thoughts of just doing the side muffler valveless bypass and keeping everything else stock?

I think that's a great upgrade and usually my recommendation for starter upgrades - gives you a more aggressive tone without being too overbearing. Sheds a good bit of weight too :thumbup:

Hey Alec. Any updates on the cars that installed just your side muffler bypass pipes for the .2 GT3. How do they compare with those who just replaced the center muffler?

Hi Hayn,

I have bypass on mine 991.2.. Will try to post something when will be some free moment for that..

Lukas

Thank you Lukas!

We've gotten great feedback on doing just the Valved Side Muffler Bypass Pipes, which is usually my first recommendation for the .2 GT3's.

I drove a .2 GT3 with our Valved Side Muffler Bypass and it really gave the car a nice tone, deep/throaty and by no means obnoxious or overbearing. I personally didn't notice any drone either. The Center Muffler Bypass is a bit more aggressive.

I'll see if I can find some .2 videos. In the meantime, here is a .1 GT3 with just our Valved Side Muffler Bypass for reference:

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I've had my long tube headers on my GT3 RS now for 2 years and have not had any issues other than making are there GT3 RS owners jealous

I have the side deletes and really want the full race header, i have a .2 gt3 and don't want to deal with he CEL issue, I know the .1 cars are different and am looking for someone who has the .2 and some miles with no CEL. How hard is it to reset if you get on, and what tool is the correct tool to buy to plug into the car and reset. I read many different readers but no one has the GO TO reader.

Hey Doug,
That is a great question. There are a couple options for you. You could add O2 spacers to help take care of the CEL. You could also tune the car to 'Trick the CEL" They are pretty easy to turn off but they will come back on every 100 miles. I will be glad to help you out with any questions you might have.

Hey guys!

Here's an explanation video for our 991 GT3 Longtube Competition Race Headers - just gives a bit more background on the product. Let me know if anyone has questions!

I have 4k with the fabspeed headers and love them. Started with side deletes, no issues, amazing addition to the car, sound amazing, make power and save weight. Would recommend them to anyone who wants a great exhaust!

Great to hear Doug! :rockon: Looks like you are tracking the car? What tracks did you hit this year?

A little track shakedown anyone?!
Nathan Johnson racing his 303 rwhp 2615lb monster, Fabspeed headers making her sound angry:corn:

Niceee!!! 👍🏼👍🏼

Loving the stuff you've been putting up Scotty!

Any foresight on some cool new videos??!

I need to get on that!! But I know my car sounds awesome now. Thanks guys!

I plan on getting a dyno this summer, if this covid-19 Sh@t ends, and see the values. i love my exhaust. It rips, there is no questions, its making more power and torque. PCar people ask , What exhaust is that. lol Full race headers rock, but i get the emissions issues, and states that ban them. I dont have that issue. I have the tune, and no CEL, runs perfect, crisp. and sounds amazing.

Glad to hear you are loving your setup! Feel free to send us some video's if you have any, we love hearing first hand from customers! :cheers:

If you are looking to finish the season strong, or looking to get a little more sound now that we can actually get out and drive. Fabspeed has these in stock and ready to ship!