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  1. #1
    Gaz-M's Avatar
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    Going stage 2- Looking for downpipe & decat. Which one?

    My mate has a 2001 S3 and is after a 3" downpipe and de-cat so he can go stage 2. He isnt keen on paying £350 kind of money, i see theres talk of a £86 one that needs flange modified or cut or something, whats the deal with that?

    He has a milltek catback, intake, TIP and i think a stage 1 map already, how much better will it be with downpipe/ decat and stage 2 software?

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  3. #2
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    im guessing the £86 one is the k03 downpipe, would need to modify it to fit a k04, not sure what is involved tbh. can't imagine it being too hard of a job if you can tig weld and have a chopsaw
    2001 1.8T Quattro Sport 89k covered ARY engine.
    Remapped at Badger 5, 213bhp - 235lb/ft torque.
    HS2K cone, FMDV008, Silicon TIP, 18" RS4 (reps), AP coilovers, Catch can, n249 bypass, Vent pod boost gauge, Toyosport 3" Downpipe/Decat, S3 Front brakes, Polyflexed Dogbone, S3dave (RIP) adjustable tie bars, FMIC

    Soon to be done: SAI delete, 3" Catback, Stage 2 remap

  4. #3
    Gaz-M's Avatar
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    Hmm feck that!

  5. #4
    <tuffty/>'s Avatar
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    86 quid one will be for a K03 (fwd A3, Glof etc)... S3 ones are available from Pipewerx or Relentless...

    Better quality Pipewerx one is more expensive..
    Audi TT S3 3" Exhaust Down Pipe & De Cat Bypass | eBay

    ...but a lot of S3 owners here use the relentless one which can be variable quality and fitment wise but cheaper
    Downpipe Audi S3 TT Seat Leon 1.8T 3" Decat De Cat exhaust down pipe UK STOCK | eBay

    Just make sure you use an OE gasket for the turbo to DP as the perforated ones supplied are next to useless

    <tuffty/>
    Silver 2001 AMK S3. Silver alcantara interior... now with added powarrrrrrrr, torques. VAGCOM + KII-USB. >> My build thread...

  6. #5
    scotty_24's Avatar
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    Quote Originally Posted by <tuffty/> View Post
    86 quid one will be for a K03 (fwd A3, Glof etc)... S3 ones are available from Pipewerx or Relentless...

    Better quality Pipewerx one is more expensive..
    Audi TT S3 3" Exhaust Down Pipe & De Cat Bypass | eBay

    ...but a lot of S3 owners here use the relentless one which can be variable quality and fitment wise but cheaper
    Downpipe Audi S3 TT Seat Leon 1.8T 3" Decat De Cat exhaust down pipe UK STOCK | eBay

    Just make sure you use an OE gasket for the turbo to DP as the perforated ones supplied are next to useless

    <tuffty/>
    Take Tufftys advice, i fitted my relentless with the gasket supplied and it was blowing withing 48 hours. Get a oem one from TPS for £8 and save yourself a world of pain
    REVO Stage 2, Eibach anti roll bar kit, forge 007p diverter valve (yellow spring), Badger5 turbo intake pipe with Jetex filter and Neuspeed heat shield, Forge upper bost hoses, N75, DV and Cam breather hoses, XS Power 3" downpipe 200cell cat and 3" cat back system, Apex 30mm springs, N249 bypass, Oil catch can and PVC delete, Front Mount Intercooler............

  7. #6
    Gaz-M's Avatar
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    Thanks chaps, im going to order him one of those relentless ones and a Audi gasket as per your advice. Much appreciated.

    Will he notice a big difference between stage 1 and fitting this and stage 2 mapping?

  8. #7
    <tuffty/>'s Avatar
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    Stage 2 typically gives more midrange power/torque with the right setup... these types of mods are all about keeping the engine happy temperature wise so the ECU doesn't intervene as much when cylinder temps/EGTs rise.

    <tuffty/>
    Silver 2001 AMK S3. Silver alcantara interior... now with added powarrrrrrrr, torques. VAGCOM + KII-USB. >> My build thread...

  9. #8
    Gaz-M's Avatar
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    Cheers, downpipe on its way thanks for advice. Will update when fitted and mapped!

  10. #9
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    has he not got fmic? + 1 for blow exhaust gasket after market are rubbish i just replaced mine for one from audi dealer was a ass hole of a job when you have 3" down pipe and relentless exhaust mani

  11. #10
    Gaz-M's Avatar
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    Yeh it has a Forge front mount, Milltek decat and an intake kit.

 

 

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