DES 180 Degree Headers in LS7 swapped Porsche 997 - Duke Engineering Solutions

This is a GM LS7 swapped Porsche 997 but with a special twist - it has our 180-degree headers installed! No mufflers, straight piped, and ready to confuse all the purists. Can you tell the difference between this 7-liter beast and a Porsche cup car? We can't. Our headers are available now, see our website for more details and ordering. You won't find a better set of 180-degree headers for the money. Porsche 996 and 997 with LS swaps fit perfectly. Universal fitment on other projects such as sand cars, formula drift, Ultra4, desert trucks, and more!
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[@ZZPxFTW]

they nailed the design on these. A lot of guys understand the concept of 180 headers, but the execution ends up not being done in a way that gets the flat plane sound.

[@dukeengineeringsolutions6587]

Thank you so much!

[@tonymontana3873]

I like flat plane but it sounds way too similar to I4

[@yassinenattah]

@@tonymontana3873 that is because (i think) the exhaust is just 2 tubes no x-pipe or h-pipe

[@Drunken_Hamster]

@@yassinenattah You are correct. If they X pipe it or Y pipe it into a bigger single (dual 2.5 to single 3.5 or dual 3 to single 4) it'll sound more exotic and proper.

[@superrookie1554]

​@Drunken_Hamster kind of like a horn? at what points would an x or y be put? I'm gonna be having a 180 system or 8 to 1 setup made.

[@donovanring8054]

I had no idea a v8 could sound like this! Sounds great!

[@dukeengineeringsolutions6587]

Thank you! Hidden gem :)

[@johnmcmullen456]

In the 1980's 180 degree headers were very popular in short track racing and the Trans Am series. With technology advances resulting in higher rpm motors, the previous gains from this complicated header style disappeared. Unfortunate since sound so awesome & exotic.

[@inaNis_]

You somehow kept that very recognizable harshness that comes with Porsche Boxer 6s, ever since the air cooled motors, yet this is a 180* header V8, and at 7 liters no less. What a fantastic engine sound this has. It actually really reminds me of the Porsche 908 Le Mans racers from the 60s, the ones that had the Boxer-8 engines.

[@dukeengineeringsolutions6587]

Thank you so much! It’s so nice to hear the appreciation from others that understand the sound, the legacy of the older Lemans engines, and the thought that went into this.

[@Charlie-Charlot]

You pretty much made a RUF Rgt-8, that’s really impressive !

[@dukeengineeringsolutions6587]

Thank you! The owner did a wonderful job on the car and these headers with the LS7 really make the car come alive.

[@Nick22257]

@@dukeengineeringsolutions6587 does the owner have a youtube or instagram we can follow the build at?

[@dukeengineeringsolutions6587]

@@Nick22257 Unfortunately he sold the car and kept the 180 headers for his next build. He doesn't have a social media as far as I can tell.

[@tonyjackson4099]

The RUF GT8 engine is a 4.5 liter flat-plane crank, so not really.

[@Charlie-Charlot]

@@tonyjackson4099 that is true but 180 degree headers helps the exhaust scavenging, which is inherent in a flatplane V8 and thus emulate the sound of one. Let’s call it a RUF on a budget

[@Thatdude877]

Holy Sh!t What a beautiful noise, and to think it's a LS7 is blowing my mind

[@dukeengineeringsolutions6587]

Thank you sir!

[@tescoshortage]

I like that when you listen closely, it still has the crossplane rumble associated with the LS.

[@dukeengineeringsolutions6587]

Thank you!

[@desmomotodesmomoto2033]

Sounds much much better! Wooow!

[@gtxracer]

thank you!

[@alloutofdonuts3998]

How in the hell they do that?! I had to listen to it 17 times. Well I didn’t _have_ to. The only time I can manage to hear anything close to a V8 is when it goes by. Pretty incredible the witchcraft these wizards use is diabolical 🤠🔥

[@ScottHD]

Epic sounds

[@hunteraltman4762]

Incredible sound! I was looking for this sound for an ls3. I got my answer on your website! Thank you for making these, hope to buy one!

[@dukeengineeringsolutions6587]

Glad to hear you love it! Yes, let us know if you have any more questions. There's a FAQ on www.dukeengineeringsolutions.com but we'll be happy to answer any questions you have.

[@hunteraltman4762]

@@dukeengineeringsolutions6587 thanks!

[@hunteraltman4762]

@@dukeengineeringsolutions6587 I do have a question would this fit a camaro ss from 2010-2015? With everything stock/oem on the car except the headers changed to your's?

[@dukeengineeringsolutions6587]

@@hunteraltman4762 not unless you want to use a torch to cut up the frame and body. :) these are made for the Porsche 911 application. I have a 8-1 header that exits on top of the intake that’s in development. You’ll need 8.5” of clearance between your hood and the intake. Feel free to email me for more info if you’re interested. [e-mail]

[@hunteraltman4762]

@@dukeengineeringsolutions6587 well I would be ok with cutting it up, but it depends how much we're talking about. Like a few places cut or is it not realistically possible. I'm hoping to get a tube frame built up as well so it might be possible.

[@2000wrx]

WHOA!!!! NAILED IT!

[@E46325mod]

Sounds almost like a 997 porsche carrra s with headers and exhaust wow 👌

[@dukeengineeringsolutions6587]

Thank you!

[@lawrenceshields8791]

Wow sounds so much better than stock! Not gt3 cup car but dam close. Nice job

[@dukeengineeringsolutions6587]

Thank you!

[@benvin10365]

Sounds great!!!

[@dukeengineeringsolutions6587]

Thank you sir!

[@junesmotorworx]

ferrari like sound!! awesome!

[@dukeengineeringsolutions6587]

Thank you!!!

[@WebNstyne]

Yessssss!!!! sounds awesome!!

[@user-ul4xf2eo3r]

Is it that the headers produce exhaust pulsation like in a flatplane v8? Because it do sound like them 😅

[@dukeengineeringsolutions6587]

Yes exactly. Thank you!

[@ShootsVal]

That probably is a strange question, but would it be possible to make 180 degree headers to mount turbos on them? Turbo LS with that sound in 911 would be a dream come true!

[@dukeengineeringsolutions6587]

It’s been done! 944kid on Instagram has our 180 headers on his 996 with twin turbos.

[@ShootsVal]

@@dukeengineeringsolutions6587 oh, amazing! Need to check it out then. Thanks!

[@rob_nice1]

Does this change performance at all + or -?

[@dukeengineeringsolutions6587]

Yes, average gains are +20hp and +30 ft/lbs on LS1 and a bit more on larger displacement LS3/LS7.

[@rctwist]

Sounds like two 4 cylinders fighting eachother…

[@JNAMOTORSPORTS]

How much power does this make over a reg header

[@dukeengineeringsolutions6587]

Read our FAQ on our site! Depends on the engine, gains have been significant on LS3 and LS7! www.dukeengineeringsolutions.com

[@SuperFuzzyman123]

Any dyno tests of before and after?

[@dukeengineeringsolutions6587]

Hey Doc! We're working on dyno sessions now. Hoping to have 2-4 cars to compare with a few before and after sessions. Stay tuned!

[@dukeengineeringsolutions6587]

+22 HP over block hugger headers on the same LS3 base :)

[@SuperFuzzyman123]

@@dukeengineeringsolutions6587 torque?

[@gtxracer]

​@@SuperFuzzyman123 Also 22 ft-lbs! Peak power was +25 HP at its highest.

[@dukeengineeringsolutions6587]

New dyno results: my cammed LS1 in the black 996 put down 393 hp to the wheels.

[@DisturbedVette]

Sounds like it needs an x pipe

[@dukeengineeringsolutions6587]

We have one in the works! Depends on what sound you’re looking for. Personally I like the X pipe sound a bit more on most 180 setups and I’ll post a video of the updated exhaust on my car once it’s done.

[@sebdupree1]

0:03

[@berfus7823]

im asking for some knowledge. if with 180degree headers you get the flat plane crank sound, what should you do to get this throaty/rowdy kind of sound : kzbin.info/www/bejne/g6XYg3ZpgcmIn9U --- kzbin.info/www/bejne/mZO5kqd3nJyZo6M --- kzbin.info/www/bejne/gJm0ZImbd5asqas?

[@inaNis_]

Probably an X pipe if I had to guess

[@dukeengineeringsolutions6587]

Probably a change in muffler and try an x-pipe!

[@tescoshortage]

Equal length long tube headers and an x pipe.

[@josephlemus8307]

Sounds like a k24

[@I3igTasty]

thats fucced

[@ShootsVal]

That probably is a strange question, but would it be possible to make 180 degree headers to mount turbos on them? Turbo LS with that sound in 911 would be a dream come true!

[@rctwist]

I was literally thinking the same thing

[@Drunken_Hamster]

Yeah, all you have to do is put a turbo flange on it and locate the ends of the collectors wherever you need in order to fit the turbos. What would be far more interesting to me, however, is routing each collector to one scroll of a single, BIG, twin-scroll turbo.

[@ShootsVal]

@@Drunken_Hamster sound like an interesting idea! I guess the engine sound would be pretty similar as exhaust pulses are still 180 degrees away from each other anyway.