718 GT4 Cayman Exhaust - Akrapovic OPF Link Pipes & Stock Muffler (Install & Sound)

We showcase the Titanium Akrapovic OPF Link Pipes paired with the standard factory PSE muffler. This option is a nice bump in power and tone without going for a full system. Link below for the product featured.
Flat 6 Motorsports OAPs
flat6motorsports.com/products...
Akrapvoic Titanium Link Pipes
flat6motorsports.com/products...

[@davidalexandreg]

This is the best installation on this car by far . This is enough for me .

[@g2seriouslly716]

check out Ipe 718 gts 4.0 exhaust, sounds better in my opinion

[@gordydexter2615]

Wow, changing out the over-axle pipes makes a huge difference getting rid of the GPF!!! In the USA that is what needs to be done to enhance the sound!!!! Thank you for sharing this video!!!

[@The_Drive_Inside]

Whoa 😳.... I had no idea the oem muffler or the cats were that big!

[@beastlaser9611]

Sounds beautiful

[@ronburgundy4375]

These with the jcr back section is the best combination.

[@15284750]

I want this for my GT4!

[@dougmaverick3287]

What it should have sounded like from the factory. 👍👍

[@ad_2211]

All German cars are getting slaughtered by the emission regulations.

[@brg9759]

Physically impossible due to regulations

[@993mike]

Not Porsche’s fault on that one. European emissions regulations are not optional. Now, sticking the car with ridiculously tall gearing? That’s the real bummer that costs a lot to address

[@riptiide9285]

@@993mike Manthey Racing has a solution for that :)

[@fernandovazquezleblanc4810]

Fkn love it 😍

[@seinundzeiten]

Sounds good.

[@larrycable984]

curious why they removed the exhuast - thought it was possible to remove the OAPs w/o that!

[@elginb]

I wonder if it had sounded better or no change if they had installed the Akrapovic Version 2 Slip-On Line (Titanium) Exhaust Systems, S-PO/TI/18/1

[@gordydexter2615]

In the Porsche Owners Manual they refer to GPF not OPF. GPF=Gasoline Particulate Filter which has a second cat added on. In the USA 🇺🇸 since the GPF is not monitored by removing the over-axle link pipe you enhance the sound and reduce weight and pick up Hpw & torque by this modification!!! Awesome change!!!

[@Flat6Motorsports]

Yes OPF is derived from Otto Particulate Filter, same as GPF.

[@stevelilley8408]

Great video! Love the change in the sound too! I do have one question: there's a support bracket at the back of each Akrapovic OPF Link Pipe that doesn't look like it's necessary in the US (right next to what I assume is the monitoring bung). Can you comment on that support bracket? Otherwise, these link pipes look like a factory piece with the built-in heat shield. Seriously considering them for my GTS 4.0!

[@Flat6Motorsports]

It goes unused on the post-Feb 2020 builds. We're expecting new ones in January that will no longer have that little bracket.

[@kurosan7740]

Do you need adjust the ECU?

[@jamestorres5582]

Sounds fucken SICK Homie

[@Mikoyagi]

Great video, thank you. The cargraphic system uses a hollow OPF replacement instead of a straight pipe as per akrapovic, citing it maintains a better tone. I'm wondering if anyone has removed or bored through the internal filter elements inside of the original factory unit? Thinking it would look maintain the stock factory look, noting that this would only be appropriate for non Euro & Asian markets that have un-monitored OPF filters....

[@Flat6Motorsports]

We've installed both, can't say I can really hear a difference in the designs.

[@whendoweeat]

DAT FANNY PACK.

[@Mmgc4706]

That valve open rev sounds so good. Is the vacuum line disconnected/disabled?

[@Flat6Motorsports]

No, everything is stock programming of the valves.

[@artagain8977]

Why not change out that beast of a muffler too?

[@blairpringle4949]

Sound clips from the Driver's seat please. the guy or gal paying for these is in the driver's seat, so sound clips from the inside are the only thing that counts. My Spyder is NEVER going down the road at full throttle unless I am in the driver seat. I am actually interested in this product

[@neptune45]

Any Drone at certain RPM'S. Would it be different on PDK vs Manual.

[@tims9294]

Straight pipe it 🤘

[@ldmcnutt]

you should invite LaFawnduh on the show!

[@WheresTheAnyKey1]

wow the difference when valves are closed. a question, simpleminded me would assume a closed exhaust system is not good for the car?

[@Userh211]

no, a closed exhaust system is fine. open just helps to relieve some back pressure I think

[@gaycha6589]

Partially closed creates back pressure and is vital to engine efficiency and heat cycles. GPF is regulatory and a different thing.

[@jeffreykilpatrick3592]

I don’t hear any backfires or burbles on downshift like on the base 911 992 in sport mode. Any mods that can produce this type of fun exhaust sounds???

[@Flat6Motorsports]

Opening up the exhaust and being in sport mode.

[@gaycha6589]

do you Remap post OPF removal?

[@Flat6Motorsports]

It's not necessary on the US model.

[@user-zx1ir7jt4c]

Wow that sounds WAY nicer! How much are these pipes?

[@Flat6Motorsports]

$1695: flat6motorsports.com/products/flat-6-motorsports-over-axle-pipes-oap-718-gt4

[@blairpringle4949]

what are the brackets hanging off the side. At 3:28 you can see the driver side OAP with nothing attached to the bracket

[@Flat6Motorsports]

So at some point in late February 2020, Porsche made a change to the exhaust brackets on the 718 GT4. The center muffler is now supported directly from the frame/body instead of a bracket that was used on the 981. We believe this change was made due to the weight of the OPFs and issues that might have surfaced with heavy track use. To answer your question, the link pipes have a bracket that can be used on the original exhaust brackets design. On the newer models, they go unused. They don't show and being titanium, they probably weight an ounce. Akrapovic, will be making a new version without that bracket, but at this point, it really doesn't matter.

[@hectorvillarrubia6655]

How much hp and torque gain results from just changing the link pipes? In the Akrapovic site they have the numbers after changing the complete exhaust system and ECU re map.

[@Flat6Motorsports]

We don't have a dyno but I'd assume roughly 10-15whp from the feel of it and other dynos we have seen.

[@richard-markdodds305]

how many hours pls ?

[@z06van21]

Since that is a titanium piece, how does it do with the rest of the system at both ends? Ti and stainless expand and contract at different rates and temps. Doesn't that leave the potential for an exhaust leak to develop?

[@Flat6Motorsports]

It's unlikely at that joint, it does have a gasket there. Aluminum and stainless are similar (heads being aluminum, headers being steel) and don't cause issue. I'd imagine if there wasn't a gasket there, there could be more of a risk.

[@richard-markdodds305]

can I amend the software on a european car pls ?

[@amielterence]

Will installing the pipes void the warranty/motorplan?

[@Flat6Motorsports]

Not in the United States, I am unsure in other countries

[@osamaalashiq6026]

I bought the same system for my spyder, but I ended up installing the pipes only (wrong version of muffler) what does a muffler do and do you recommend keeping the stock muffler?

[@Flat6Motorsports]

A muffler increases the sound and adds some deeper tone. We like the Kline system and Soul Valved system for a nice balanced sound.

[@srmusa7725]

when do you have these back in stock?

[@Flat6Motorsports]

Unfortunately we do not at this time.

[@FredSHerr]

Any idea on decibel level? Laguna Seca track days are mostly limited to 92db.

[@MrHCars]

Comes to 105db. Tested it today. There's a vid on my channel showcasing it

[@FredSHerr]

@@MrHCars Thanks for the info, that's way too loud for Laguna Seca.

[@MrHCars]

@@FredSHerr the annoying trade off between sound and fun 😕

[@nomoracin]

Stupid question…what are those 2 cables dangling when you have the opf/mufflers out (roughly at 1:45)? Thanks!

[@Flat6Motorsports]

Those are the vacuum lines for the PSE valves.

[@nomoracin]

@@Flat6Motorsports ah, thanks! Is it an option to not plug those back in? …would that leave them opened or closed?

[@Flat6Motorsports]

@@nomoracin Yes, we include caps with our OAPs or offer them below. If you cap them, the valves will remain open at all times. The lines need to be capped or plugged into the valve. flat6motorsports.com/products/flat-6-motorsports-vacuum-line-caps-pse

[@nomoracin]

@@Flat6Motorsports oh, great to know! Thanks! (I love the fast responses too!)

[@nomoracin]

@@Flat6Motorsports so, more stupid questions…I bought the caps from yall, but I’m not sure how to install them. 1) Can this be done by just laying on the floor and reaching underneath? 2) Can I just yank on vacuum line or do I need to remove any clamps? (I can’t see clearly). 3) Will I need to secure/ziptie the vacuum line to anything? TIA

[@richardly438]

I wonder when can we order these. I have been waiting for 7 months.

[@Flat6Motorsports]

Check these out, very similar but in stainless steel: flat6motorsports.com/products/flat-6-motorsports-over-axle-pipes-oap-718-gt4

[@lambo88]

is it a must to re-tune the car if u just change the link pipes?

[@Flat6Motorsports]

No, not on North American cars.

[@rezabnet]

Does the GT4 come with OPF to the states too?

[@Flat6Motorsports]

Yes it does but they are passive, so there is no active monitoring like they have in Europe.

[@salangchoi02]

What about a Canadian GT4? Same as the US one?

[@Flat6Motorsports]

@@salangchoi02 As far as we no but we're in the U.S. so I'm not 100% sure.

[@mannysingh6618]

How long does this take to change? I'm from the UK, so if the ECU had to be reprogrammed, how long would that take please?

[@Flat6Motorsports]

Usually 2 hours. We don't reprogram EU vehicles.

[@mannysingh6618]

@@Flat6Motorsports thanks, keep up the tuning vids!

[@justinrehm6839]

star of the show is that fanny pack :D

[@ReevesTop]

Why not change the mufflers too? I would have!

[@Flat6Motorsports]

He plans to but wanted to do in phases. Stay tuned!

[@TheKogan4ik]

anybody know you need to change softwhere to don't get checkengine after link pipes instalation?

[@TheBucketOfTruth]

You do need software in Europe as the GPF is monitored whereas in the United States no issues or software necessary.

[@Waltherppk78]

How much more power do you get ?

[@Flat6Motorsports]

Check out the dyno here on the F6 OAPs (+16whp) flat6motorsports.com/products/flat-6-motorsports-over-axle-pipes-oap-718-gt4

[@gman3280]

How about drone cruising?

[@Flat6Motorsports]

Nothing noticeable experienced when cruising. Actually less than stock. It seems the back pressure from the particulate filter close to the seat seems to add some slight drone stock. We noticed it more on the 718 all stock than the 981 GT4. Oddly, these seem to minimize any drone.

[@srmusa7725]

Do they fit the cayman gts 4.0?

[@Flat6Motorsports]

As far as we can tell, yes. We have a few clients with GTS' who are installing them, we should have final confirmation any day.

[@srmusa7725]

@@Flat6Motorsports thank you

[@landenlove3051]

is this the arctic gray?

[@Flat6Motorsports]

I believe it was chalk

[@michaelsalter2473]

I have a GTS, is the OPF in the same unit as the standard cat? So are we doing a cat delete as well as an OPF delete?

[@Flat6Motorsports]

Yes, same exhaust set-up. There is a catalyst integrated into the header and then an OPF integrated into the over axle (link pipes).

[@OCEAN-YACHT-CHARTER]

That's what this car needs. Very nice, but unfortunately not legal in Europe.

[@TS-mt7os]

Didn't throw an emissions engine code?

[@Flat6Motorsports]

No, the US models don't have sensors or monitoring on the OPFs, they are passive.

[@TS-mt7os]

@@Flat6Motorsports I’m getting the GT4RS this summer. Wondering if the same pipe will work.

[@alessandr2]

AKHAPOVIK

[@ahemgee9542]

Its not OPF filter, its just OPF . As it stands for 'otto particulate filter'.

[@richard-markdodds305]

in total ?

[@Flat6Motorsports]

1-2 hours

[@jeremylink3489]

Can u put a silencer on the irritating backgroud music ..

[@raullasvegas]

OPF is installed on US vehicles? I thought that was only EU? Every time I heard an EU vehicle I was happy I was in the US. I guess Im just glad here in michigan I can put a race exhaust on it and run it on the street. Those poor people in CA are screwed!

[@Flat6Motorsports]

They all ship with OPFs now, we're seeing it across the board with the new Porsche models. The EU has active monitoring like the U.S. has on a primary catalyst. In the U.S., they are not monitored, just there restricting flow and being of substantive weight. It's probably just a matter of time...

[@davidchen7659]

That means EU version require a tune since there’s sensor monitoring the OPF...

[@K03sport]

man, I had my syllable emphasis all wrong...

[@thisguy7297]

😅yee that threw me off

[@eSysmanSuperYachts]

Acrapovich - aa-crap-o-vich

[@Airbag1010674]

Uh-Crop-Uh-Vitch

[@garydoctor69mcguire2]

I’d just get rid of all the restrictions and fit a full JCR system, releases over 50 hp without a tune.

[@raullasvegas]

We need a real Slovenian to pronounce the company name for all of us. A-crop-o-vick is what I hear in the states, and it just sounds wrong. Ack-crow-poe-vick seems more correct, but Im from the midwest of the US. I know corn.

[@Flat6Motorsports]

It is of the "ich" no doubt

[@doylee469]

A-crop-o-vitch... even the lady at the parts department onew that..

[@Flat6Motorsports]

@@doylee469 aˈkrapɔʋitʃ]

[@stepwaymotivation4661]

As a Slovenian, I can tell you that his pronunciation at 0:05 was bang on!

[@raullasvegas]

@@stepwaymotivation4661 Thank you sir, I greatly appreciate that. I have heard it pronounced many ways, and I want to be respectful of what Acropovic has achieved.

[@juliusperseus8612]

I can't hear no difference at all. I would have changed the Exhaust tips Only

[@gboyer78]

It’s very different... maybe aliens dont have ears ?? 👽 just joking ... listen 🎧 you will notice the difference. In person will be much better...! Good day!

[@jordanking4216]

😂😂

[@danielfair4675]

Huh? 🤣

[@WhiteBoardFinance]

It's pronounced Akrapovic not Akrapovic :)

[@referencechannel996]

Oh that delay on a manual gearbox is awful, how can people like that at all

[@yooseemotoringchannel3357]

Its another layer of connection that you get. Knowing the precise clutch engagement point, rowing through gears, perfecting heel-toe, etc. yes its slower than auto, but nobody is giving you trophy for being able to pull 0-60 half sec faster. I rather be able to enjoy the sheer driving every day. If you’ve never driven a manual, go do it. Maybe someday you’ll understand.

[@evaristogarciamorales9912]

Great video!! For US spec cars will the link pipes cause a CEL? I understand that US spec 718’s have no sensor. Appreciate your feedback!

[@moneyparhar]

No bcz thier r no oxygen sensor after OPF filter or on OPF filter. Its not cat delete bcz cayman have cats on headers.