DIY under route piping for hot and cold sides

Discussion in 'Mazdaspeed 3 How-To' started by Scott@TSS, May 17, 2017.

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  1. Scott@TSS

    Scott@TSS Former Vendor

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    I've been meaning to write this thread up for a while, so here goes!

    I put together a piping kit using off the shelf stuff from www.siliconeintakes.com

    The total cost for BOTH SIDES is $236 + shipping. Parts list shown below.

    Cold Side:
    (7) 2.5" T-Bolt Clamps
    (1) 2.75" T-Bolt Clamps (for TB)
    (1) 1' x 2.5" Aluminum 90°
    (1) 1' x 2.5" Aluminum Pipe
    (1) 2.5" BOV flange of your choosing
    (1) 2.5" - 2.75" 45° reducer (for TB)
    (1) 2.5" 90° coupler
    (2) 2.5" straight coupler
    [​IMG]

    Hot Side:
    (1) 2.5" straight coupler
    (1) 2.5" - 2" 45° reducer (for OEM turbo outlet, PTE needs a 2.5" 45° coupler)
    (1) 2' x 2.5" Aluminum 45°
    (1) 1' x 2.5" Aluminum 135°
    (1) 2.5" 45° coupler
    (1) 1' x 2.5" Aluminum Pipe
    (1) 2.5" 60° coupler
    (7) 2.5" T-Bolt Clamps
    (1) 2" T-Bolt Clamps (for OEM turbo outlet, PTE needs an additional 2.5" clamp)
    [​IMG]
    This list is setup for a stock size turbo outlet (2"). If you run a PTE, you'll need to swap out the 2" - 2.5" 45° reducer for a 2.5" 45° coupler.
    The 2' aluminum pipe needs ~2.5" cut off the length of it.

    Installed pics:
    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]
     
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  2. JohnnyTightlips

    JohnnyTightlips Motorhead Silver Member

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    What intercooler are you running?
     
    JohnnyTightlips, via a mobile device, Nov 3, 2018
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  3. macdiesel

    macdiesel Greenie Member

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    Is that coupler rubbing on the oil pan?
     
    macdiesel, via an iPad, Nov 5, 2018
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  4. 5doorsoffury

    5doorsoffury Silver Member

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    I want to add that a really cheap pipe clamp can be made for the hot side to mount it to the bottom bolt that stick out in the timing cover. i used a piece of scrap AL and a hose clamp. i bent half of the AL to contour the pipe and i drilled a hole in the AL for the clamp.[​IMG]
     
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  5. GrannyLag

    GrannyLag Greenie N00B Member

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    I would love to do this but I think with the ewg facing down right behind the oil pan I'll have some clearance issues.

    Sent from my SM-G965U1 using Tapatalk
     
    GrannyLag, via a mobile device, Nov 8, 2018
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  6. JohnnyTightlips

    JohnnyTightlips Motorhead Silver Member

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    Have it flow back into the intercooler piping for MAX POWAH!!!
     
  7. Scott@TSS

    Scott@TSS Former Vendor

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    TR8L... But this should fit any similar core with minimal changes.

    Yes it was a bit, but I ran it that way for 3 years with no issues. The coupler had no noticeable wear.

    It actually will fit with an EWG off the turbine housing, I ran it that way for about a year before switching to a hood dump.
     
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