PORSCHE GT4 EXHAUST UPGRADE! JCR Titanium Valved Race Pipes Installed

It had to be done! My Porsche 718 Cayman GT4 can now sing more freely thanks to the installation of a JCR Titanium Valved Race Pipe exhaust system. Heading out to JZM Porsche for the work to be done, listen to the improvement with the before and after!

Visually, we've given the GT4 a new look with the Inozetek Midnight Purple wrap at Dub Customs, and fitted the Aurum Gold wing risers from RSNV to match the wheels, but this next modification is all about the sound. To carry out the work, we're out to JZM Porsche, a specialist with a showroom featuring some fantastic cars, to get the Shmeemobile up on the ramps.

In step JCR Developments though, with the perfect solution for the 718 Cayman GT4 in the form of their Titanium Silenced Valved Race Pipe. The system is significantly lighter than standard, and brings back a lot of the sound that is muted thanks to the 718 being fitted with OPFs. It's a direct replacement while still offering valves that are controlled by the system inside the car too. I've opted to finish the system with the black ceramic tips to match the look. This is the specific system: www.jcr-developments.com/pors... )

Needless to say, this instantly awakens the sound, from the initial start up to the first drive to get a taster of what it's like!

Thanks to Jonny and the team at JCR:

And of course to JZM Porsche for their work:

Thanks for watching, Tim

00:00 Intro
00:57 Driving to JZM
02:42 Workshop
04:04 New Exhaust
07:30 Weight Comparison
09:10 Showroom Tour
11:14 Startup
11:53 Before vs After comparison
13:51 First Drive
16:46 Wrap Up

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  1. Shmee150

    Shmee150Před měsícem

    The GT4 has a fantastic engine, although for the 718 from factory it's muted compared to the older 981 version. However, there's a perfect solution for that from JCR! What do you think of the new sound of the car?!

  2. Miami GT4

    Miami GT4Před 15 dny

    Sounds sooo good. I’m considering a JCR exhaust for my GT4.

  3. Hellcat Dreamin Josh

    Hellcat Dreamin JoshPřed 27 dny

    Shmee150 Great Video I think your 718 Cayman GT4 sounds way better and I think that JCR Titanium Silenced Valved Race Pipe Exhaust tip Black Ceramic Tip looks absolutely incredible

  4. B H

    B HPřed 28 dny

    I must say this is my fave car of yours tim. That colour is just gorgeous!! Like the very one i would pick. 😍👌

  5. mario20033

    mario20033Před měsícem

    @Shmee150 are you going to do the most essential upgrade - gearing change?

  6. john air

    john airPřed měsícem

    after the change a more deeper grumble with a just more natural and raw note to it. Good choice sounds like it should now : )

  7. Toto Moss

    Toto MossPřed 8 dny

    I put my number plate on forza horizon 3 as SH14 MEE

  8. silver rone

    silver ronePřed 12 dny

    Sorry the standard exhaust is pitiful as eu regulations! But that jcr exhaust sounds awful! Two pipes caped Off! Never seen that before. Expected a lot better sound than that, and I bet it cost thousands!

  9. Kian Nes

    Kian NesPřed 19 dny

    Why did you rev the stock exhaust with valves closed😂

  10. tim ford

    tim fordPřed 20 dny

    I LOVE the 718 Cayman GT4. The sound @ 11:24 Sweeeet!

  11. Traveller 2

    Traveller 2Před 21 dnem

    Straight past a Boxer without a mention. Blue interiors and chrome wheels give you a thrill though???

  12. Borkow

    BorkowPřed 23 dny

    The old gen of cayman is was very very better much pleasure to drive

  13. The Office

    The OfficePřed 24 dny

    Do you just like to make me more jealous.😉 Pretty much the same set up I want love the Neodyme wheels with the purple... just love it.

  14. rappiddzz29

    rappiddzz29Před 25 dny

    @shmee150 great video! Looks like you need some rear tyres!

  15. M You

    M YouPřed 25 dny

    Love the exhaust upgrade and the new body colour. Yellow callipers and gold wheels clash a bit too much for my liking though.

  16. Ramsi Kühn

    Ramsi KühnPřed 26 dny

    I don't expected that the GT4 can make such a nice sound ❣️😲 Very good exhaust ❕💪🏽 In Germany not legal i think... 😔 Love from Berlin 🇩🇪 Ramsi

  17. Marko Polo

    Marko PoloPřed 26 dny

    Tim. Your rear driver side tyre looks like its on the limit to be changed, I would get that checked asap? That orange looks amazing on the gt3 rs!

  18. Andrew Crutchlow

    Andrew CrutchlowPřed 26 dny

    sounds great! I have a Gt4, love it. have you heard the non silenced version? cant decide between the two.

  19. Harry Atkinson

    Harry AtkinsonPřed 27 dny

    Any plans for a valve controller? Static rev comparison between the new and the old is kind of pointless (although thanks for trying), even with the sport exhaust button pressed the valves close at about 2000 rpm and re open at about 4000rpm the static soft limiter is 5000 rpm. A valve controller from Cargraphic will allow you to have the valve open when you want or return to factory operation via the button.

  20. emilc35

    emilc35Před 28 dny

    why did you not also remove the OPF? you can not do that in UK?

  21. Eugene Dempsey

    Eugene DempseyPřed 28 dny

    Any plans for a lower final drive for the gearbox?

  22. Chillee

    ChilleePřed 28 dny

    I love the colour, just not sure on your Porsche, it’s a bit too glitzy, which if you’re a glitzy guy is great, it’s a bit Ibiza, pride etc. Now that Orange metallic GT3 RS with the silver rims, yes that car f**ks........

  23. Tbose Like

    Tbose LikePřed 28 dny

    Hello Shmmeee

  24. 165324

    165324Před 28 dny

    Does that new exhaust has any negative effect on the performance? Would be nice to see a comparison in 0-60 or the 1/4 mile.

  25. JCR Developments

    JCR DevelopmentsPřed 27 dny

    Improved power and torque, dyno test vs OEM is on our channel 👍🏼

  26. Ken Mcintosh

    Ken McintoshPřed 28 dny

    Has the Tycan been recalled yet?

  27. shandyholliday

    shandyhollidayPřed 28 dny

    Now that is money well spent.

  28. Lap Choine

    Lap ChoinePřed 29 dny

    Definitely the exhaust sounds a lot better. A must for the GT4. Any plans in getting some new wheels?

  29. Mitchell Jack

    Mitchell JackPřed 29 dny

    Should get gold exhaust tips

  30. emrah gürses

    emrah gürsesPřed 29 dny

    Lan küfür ettiriceksiniz bak.TÖVBE TÖBE.

  31. Dylan Bezuidenhout

    Dylan BezuidenhoutPřed 29 dny

    What watch were u wearing ?

  32. Carlyle Khan

    Carlyle KhanPřed 29 dny

    Greetings Tim. The GT4 looks Amazing in Purple.

  33. Zdravko Franjkovic

    Zdravko FranjkovicPřed 29 dny

    Great upgrade for this car. Bravo!

  34. Hugo Willett

    Hugo WillettPřed 29 dny

    is shmee wearing a swatch? shocked

  35. Princess Peach

    Princess PeachPřed 29 dny

    718 GT4's, Spyders and indeed all new 992's sent to Aus don't have the OPF fitted! Yay!

  36. Princess Peach

    Princess PeachPřed 28 dny

    @JCR Developments :-(

  37. JCR Developments

    JCR DevelopmentsPřed 28 dny

    @Princess Peach yes the substrate is there for sure, same as any non monitored OPF; ie US market

  38. Princess Peach

    Princess PeachPřed 28 dny

    @JCR Developments I read that due to fuel quality in Aus if they were added ten they would break or not work so not fitted... according to Porsche themselves. So the housing is there and the panel too? And if it breaks whatever?

  39. JCR Developments

    JCR DevelopmentsPřed 29 dny

    They still have the same substrate, albeit non monitored. The sound is identical

  40. Miguel Collado

    Miguel ColladoPřed 29 dny

    Who needs a 911 after hearing this!? That sounds Great!

  41. sf2372

    sf2372Před 29 dny

    almost reminds me of a gt3 rs in full song.

  42. OSEH

    OSEHPřed 29 dny

    Are you gonna get some headers maybe? Those will really increase the frequency of the exhaust note! Depending on what headers u gey

  43. Moto Steggy

    Moto SteggyPřed 29 dny

    Tim you need new rear tyres

  44. Rotor Blade

    Rotor BladePřed 29 dny

    Fantastic start up sound, like a jaguar roar

  45. Justin Isaacs

    Justin IsaacsPřed 29 dny

    Perfect harmony

  46. Katzi

    KatziPřed 29 dny

    WONDERFUL colour choice on that Porsche Shmee - I'm Jealous AF.

  47. Sharpie Boi

    Sharpie BoiPřed měsícem

    Can’t wait for the sto

  48. Guru jojo

    Guru jojoPřed měsícem

    Shmee just please answer my simple question: Does the exhaust need to come out if I have to take my car for MOT every year? Will the car fail its inspection under warranty at Porsche? Thanks in advance.

  49. Guru jojo

    Guru jojoPřed 29 dny

    @JCR Developments cheers, order on the way 👍

  50. JCR Developments

    JCR DevelopmentsPřed 29 dny

    Emissions unaffected by this modification so the car remains fully MOT compliant

  51. Taylor Greenfield

    Taylor GreenfieldPřed měsícem

    Now you need to order the headers!!! Do it

  52. oil bum

    oil bumPřed měsícem

    You need new tyres

  53. Enjoy The Vroom

    Enjoy The VroomPřed měsícem

    Do they sell tires? Looks like you need some. Wear bars are almost worn too?

  54. randy devan

    randy devanPřed měsícem

    Hi @Shmee150.. what brand do you use as your car phone holder??

  55. THE-mad -CYLIST

    THE-mad -CYLISTPřed měsícem

    SOD the GT4 where the Museum , I want to see the pile of Carbon

  56. 466rudy

    466rudyPřed měsícem

    I'd be concerned the tips are going to melt the diffuser. They're much closer than stock.

  57. JCR Developments

    JCR DevelopmentsPřed 29 dny

    1000’s upon 1000’s of miles on track testing, zero issues :)

  58. Gordy Dexter

    Gordy DexterPřed měsícem

    Great video and really like the JCR exhaust!!! Now it sounds like it should. Screw the GPF. Also like the wrap!!! The car is amazing looking!

  59. Gordy Dexter

    Gordy DexterPřed měsícem

    Saving 19 pounds with the JCR exhaust. Cool!!!

  60. jaheermk

    jaheermkPřed měsícem

    Imagine 5 mill in cars and no mic for CSdesk

  61. christpher hill

    christpher hillPřed měsícem

    new exhaust much better

  62. Tim Tursonoff

    Tim TursonoffPřed měsícem

    OPF is this model’s biggest problem. Arkrapovic link pipes are a better value for a better result in my opinion. That’s what I am putting on my GT4 next month. Albeit, Both GT4 options are still pretty bad comparing to the sound of my 997.2 GT3RS with Akrapovic headers on it.

  63. cursed1

    cursed1Před měsícem

    Turning into a keeper?

  64. natbarron

    natbarronPřed měsícem

    9:20 Man you gotta add 1 (or 2) to the garage at some point in the future - that liquid silver is 👌🏼

  65. James Hampton

    James HamptonPřed měsícem

    Now we're talking! Much improved

  66. James Tattersall

    James TattersallPřed měsícem

    Those back tyres legal!

  67. Giovanni Gallo

    Giovanni GalloPřed měsícem

    Those OPF’s really restrict sound, even with that titanium exhaust. Not sure I will rush out and get one..

  68. shaktown 305

    shaktown 305Před měsícem

    Wow that girl sounds mean as heck definitely worth it sounds epic. Very Nice! 👍👍👍

  69. nihaR35

    nihaR35Před měsícem

    Man putting aside that exhaust i can't get enough of that wrap it's so much lovely ❤️❤️❤️

  70. Andy Walravens

    Andy WalravensPřed měsícem

    Nooooobody cares about your gayman Porsche... Buy a 911

  71. Laith al sakhboory

    Laith al sakhbooryPřed měsícem

    That watch caught my eyes I really liked it


    RYAN DICEPřed měsícem

    WOW!! Sounds so much better Tim! Love the deeper sound

  73. TACADO1

    TACADO1Před měsícem

    Did you actually pay for the product or is it a paid promotion tim ?

  74. Byron Waite

    Byron WaitePřed měsícem

    Best drivers car hands down for the price point nothing beats it !

  75. TBoneMalone

    TBoneMalonePřed měsícem

    Not that loud. Do JCR right and straight pipe it ASAP!

  76. Jonathan Topper

    Jonathan TopperPřed měsícem

    Did he just ignore a Ferrari Berlinetta Boxer in the second room?!

  77. Dominic Bird

    Dominic BirdPřed měsícem

    What phone holder do you use in the gt4?

  78. Quentin Soldan

    Quentin SoldanPřed měsícem

    Just why do you insist on moding perfectly good cars? Perhaps a contribution to charity instead?

  79. Frank

    FrankPřed měsícem

    Sounds great 👍 Tim ...you have the best automotive channel period

  80. Joar Skott

    Joar SkottPřed měsícem

    Some gold tips would look even better in my opinion🥳

  81. 50sippo

    50sippoPřed měsícem

    Needs some gold stripes on it now tp finish it off 👍🏻

  82. ZA_ Patel

    ZA_ PatelPřed měsícem

    I thought it was gonna sound something like DDEs gt3

  83. Emmett

    EmmettPřed měsícem

    Wonder how long before the Taycan gets the same upgrade?

  84. The Judge

    The JudgePřed měsícem

    Se non fai la prova al banco sono tutte chiacchiere

  85. DG Bourdon

    DG BourdonPřed měsícem

    Ooooh yeeaah! Now that's what a GT4 should sound like. Awesome Mr Shmee!

  86. Mr Le0

    Mr Le0Před měsícem

    damn is that artificial rev hang also when you drive?

  87. G M

    G MPřed měsícem

    I like your GT4, the color and styling options look really good. I have to say tho....that orange GT3 in the showroom looked absolutely epic.

  88. Grabthar

    GrabtharPřed měsícem

    oh god. do something original with your cars. Shmee buys a new car each week. shmee gets a wrap. shmee gets an exhaust upgrade

  89. Ebenezer

    EbenezerPřed měsícem

    weighing an exhaust, jeez... lol

  90. Max W

    Max WPřed měsícem

    How can you ignore that classic Ferrari in the showroom🙄 The new exhaust sounds awesome though, congrats

  91. Levis T.

    Levis T.Před měsícem

    Great sound

  92. Eduardo Carvalho

    Eduardo CarvalhoPřed měsícem

    Now, it's a better singer, and how it sings....

  93. 1seipai

    1seipaiPřed měsícem

    Strange but I preferred it with the old exhaust! Maybe it was the recording!

  94. Gav Stenhouse

    Gav StenhousePřed měsícem

    Sounds incredible JCR definitely doing the business on the exhausts.. could help notice your rear tyres looking slick thou 🙈

  95. Mark latjes

    Mark latjesPřed měsícem

    You wrapped your Daytona too?

  96. politicians and doctors are LIARS

    politicians and doctors are LIARSPřed měsícem

    The sound should get better with more use and carbon build up.

  97. Urban Wrench

    Urban WrenchPřed měsícem

    Gosh, that watch. Where can I get one

  98. Carlos COOG

    Carlos COOGPřed měsícem

    Whats the cost?

  99. JCR Developments

    JCR DevelopmentsPřed měsícem

    For this specific set up it's £4195.00 GBP

  100. Edward Garnish

    Edward GarnishPřed měsícem

    Wow! Sounds so good.. But get some new rear tyres man!

  101. Daniel Marshall

    Daniel MarshallPřed měsícem

    Lovely vid cheers, and a big-up to JZM Porsche for letting you film... and us watch.

  102. Orville Mendonca

    Orville MendoncaPřed měsícem

    Soft limiter type sound

  103. Peter Moody

    Peter MoodyPřed měsícem

    Wow what a setup JCR has!

  104. Mohamed Yasin Arakkal

    Mohamed Yasin ArakkalPřed měsícem

    You should put on high flow catalytic converters

  105. Carl Hill

    Carl HillPřed měsícem

    Tim I’m a huge fan and admirer of your work but the number of adds verses the recent content doesn’t encourage me to watch at this moment in time. Also there is a noticeable lack of interaction with your supporters comments. Hopefully my opinions change in the near future but for now I wish you every success.

  106. TreelDuck

    TreelDuckPřed měsícem

    Keeps being funny seeing you walk around classic cars and not giving them some love

  107. Swixperience

    SwixperiencePřed měsícem

    Seems great! How does it compare to the 981 stock exhaust? I feel like the 981 is still better, isn't it? Noise is the only thing holding me back from upgrading to 718.

  108. Jarno Saarinen

    Jarno SaarinenPřed měsícem

    Sounds like it definitely needs a retune! You can hear a flat spot!!

  109. Luke Slater

    Luke SlaterPřed měsícem

    DEFINITELY has more tone w the JCR exhaust🤔😎. However it doesn’t sound much louder imo.

  110. JCR Developments

    JCR DevelopmentsPřed měsícem

    stock exhaust runs approx 91dB on drive by at wide open throttle. This set up is approx 96dB. Pretty significant increase, very difficult to truly capture these things on film

  111. Josh McIlhatton

    Josh McIlhattonPřed měsícem

    Those Tyres are looking low on tread

  112. Juan Rincon

    Juan RinconPřed měsícem

    It really is a shame how the new regulations mute cars today. Remember the good old days when you would just slap an Armytrix catless exhaust and just go deaf on a cold start?

  113. Andrew Hoffmann

    Andrew HoffmannPřed měsícem

    I need this for my Spyder:)

  114. Andrew Hoffmann

    Andrew HoffmannPřed měsícem

    @JCR Developments my car has not arrived yet due to the issues with the connecting rod… however, I’ll contact you as soon as possible.

  115. JCR Developments

    JCR DevelopmentsPřed měsícem

    Ready when you are :)

  116. Krishna Mohan

    Krishna MohanPřed měsícem

    I think the stock closed valve exhaust was louder or noiser

  117. Tim Tannenbaum

    Tim TannenbaumPřed měsícem

    When i see the midnight purple i immediately get flashbacks to the audi r8. I love your channel!🙌🏼