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Thread: Golf R exhaust valve wiring guide

  1. #11
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    Quote Originally Posted by Lacksballs View Post
    To be fair only finished last night and went for a quick spin, it didn’t seem to make too much difference (between open & close).

    I did recheck the motors and they are working, i’ll get out onto the motorway over the weekend and report back.

    The exhaust motors default to open, after ignition off (3 mins or so)

    Just ordered a new IS38 turbo, so tune & DSG tune next up. I didn’t see the point to tune before exhaust & bigger turbo.

    As for exhaust note, you notice its more free flowing but its not noisey (I have left in the CAT & std down pipe)

    I’m only looking for a mk7 Golf R / GTI tune, so 220Kw-ish.
    Interesting about not much louder when open. The note definitely sounds better than stock I reckon, seems like a worthy upgrade if I can pick up a cheap muffler. I’ll keep an eye out. You left the mid pipe alone or gone straight through?

    Nice work going for the IS38, I presume you’re out of warranty?! I’d love to do some serious mods but the 5 year warranty…


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  2. #12
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    It’s 5 months old, so I’ll forfeit warranty should it be an issue (hence the Golf R tune).

    The exhaust forward of the Golf R quad exhaust is std.

    I took it for a blast, with the valves closed it more like a stock note & when open its a nice note, not loud nor droney.

    On the gear change you hear “farts”.

  3. #13
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    Quote Originally Posted by Lacksballs View Post
    It’s 5 months old, so I’ll forfeit warranty should it be an issue (hence the Golf R tune).

    The exhaust forward of the Golf R quad exhaust is std.

    I took it for a blast, with the valves closed it more like a stock note & when open its a nice note, not loud nor droney.

    On the gear change you hear “farts”.
    Haha TBH I raised the idea of engine mods with the Mrs… went something like this…

    Me: “oh yeah so was thinking I’d like to give the car a bit of a tune, maybe some minor part upgrades”
    Her: “That’ll void the warranty, won’t it? Don’t lie to me!”
    Me: “ummm…”
    Her: “No.”

    Great to know about the farts with the valves open. I get a slight fart 2nd to 3rd at the right RPM / throttle but other than that hardly.

    I will eagerly watch on to hear how you go! Your username sums up my feeling about the car at the moment lol… I really like it, but I know it has so much more to give. Anywho, sorry for taking this off topic.

    Awesome guide on the wiring and glad to know it’s not to hard to do!


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    2021 VW Tiguan Allspace Highline 162TSI R-Line (His)
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  4. #14
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    Quote Originally Posted by Lacksballs View Post
    Thanks, all works as per write up.

    Just struggled to verify the PIN numbers on my exhaust motor plugs.
    12v + pin 1, Neg - pin 3. Neg - “trigger” pin 2.

    Pin 1 has the round end & key above








    Glad to hear you had some success!

    Pin numbers are correct, I just looked at it as the latching part of the connector on top, pins from 1-3 looking at the solenoids as they sit mounted to the exhaust.

  5. #15
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    Quote Originally Posted by Lacksballs View Post
    To be fair only finished last night and went for a quick spin, it didn’t seem to make too much difference (between open & close).

    I did recheck the motors and they are working, i’ll get out onto the motorway over the weekend and report back.

    The exhaust motors default to open, after ignition off (3 mins or so)

    Just ordered a new IS38 turbo, so tune & DSG tune next up. I didn’t see the point to tune before exhaust & bigger turbo.

    As for exhaust note, you notice its more free flowing but its not noisey (I have left in the CAT & std down pipe)

    I’m only looking for a mk7 Golf R / GTI tune, so 220Kw-ish.
    How many pins on your relay #3? If you run a 5 pin relay you can swap the wire that goes to pin 2 on the solenoid between 87 or 87a and that will change your default valve position on start up! Mine defaults to valves closed on start up (I have the trigger wire on pin 87 of relay 3).


    With the highflow downpipe and res delete I notice quite a difference in exhaust volume in the cabin. Opening the valves introduces a deep rumble at idle and promotes drone when cruising, closing the valves kills the drone completely. More pops and farts come through with the valves open too

    Although hard to video, this was taken with the tailgate open. Imgur: The magic of the Internet

    What IS38 have you ordered? I've been looking at the HPA OEM+ IS38 but there are so many options I end up going around in circles every time I do some research.
    Last edited by Jonno; 20-05-2021 at 09:07 PM.

  6. #16
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    Quote Originally Posted by Jonno View Post
    Although hard to video, this was taken with the tailgate open. Imgur: The magic of the Internet
    Sounds good!!


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  7. #17
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    06K145722H TURBO IS38

    Ill look at my relay set up to see if I can do the same (default to close on start up).

  8. #18
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    So swapped the output to 87A pin on my 3rd relay & defaults to close.

    Also spoke to a tuner here in Sydney & the tune will be a stage 1 GTI tune (R engine internals slightly different) with my new IS38 turbo. STD intake & downpipe.

  9. #19
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    Fitted my new IS38 turbo over the weekend, what a mission that was!
    Just been out driving it, the upgrade is amazing.
    The mid range is impressive, can’t wait to book it in for the tune.

  10. #20
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    Quote Originally Posted by Lacksballs View Post
    Fitted my new IS38 turbo over the weekend, what a mission that was!
    Just been out driving it, the upgrade is amazing.
    The mid range is impressive, can’t wait to book it in for the tune.
    Do you end up tuning the new hairdryer? Golf R exhaust valve wiring guide


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