VW Golf/Jetta 2.5 07K Cold Air Intake - 3D Printed

3D printable cold air intake for your MK6 VW 2.5!

Unlock induction noises and enough placebo power gains to make your butt dyno say “It feel torqueier down low!” with this here 3d printed doohickey.

Disclaimers:
- While I have had no issues with my personal install (20k+ miles), that is not a guarantee of success for your own car. You are modifying your car at your own risk, and by printing and installing this CAI yourself, you are accepting the liability for any legal or mechanical issues that may arise.
- The carbon fiber texture in the rendered image is just from me messing around in fusion, your printer will not magically print a perfect carbon fiber weave when you print this part.

Fitment:

• Guaranteed Fitment on 2013 Jetta Sportwagen 2.5 (This is my personal car)

• It is should fit cars with all of the following:

  • Electric Power Steering

  • MAP Sensor (IE: No MAF)

  • Models with both: SAI and PCV hoses to the intake

  • Models with only: PCV hose to the intake (Not personally tested, as my car has both)

  • If your car does not have all of these mentioned features, it is not designed to fit your car.

Printing:

• This intake can be printed all at once, no glue or post assembly required!!

• Print in orientation shown for best mix of detail on SAI/PCV ports and part strength of CAI

• Organic tree supports are recommended for best outcome

• Print out of a heat resistant, glass/carbon filled, material such as ASA-GF/CF, ABS-GF/CF, etc. (PETG WILL MELT! - I've tried it lol)

• Fuzzy Skin on the outside is recommended for a better finish. I used 0.2mm Fuzzy Skin Thickness and 0.4mm Point Distance. I would recommend bumping the thickness to 0.25- 0.35mm to hide the 3d print lines even better.

Install: 

1. Remove the stock intake, setting aside two spring clamps from stock intake

2. Clamp one spring clamp around throttle body temporarily 

3. Put TPU coupler onto CAI (using one spring clamp), then plug SAI and PCV hoses into CAI

4. Clamp CAI & Coupler assembly to throttle body

5. Install air filter

6. Double check that all hoses and fasteners are snug

7. Test drive car

8. Enjoy

Additional Notes:

1. Check to see if the two coolant hoses directly below the intake are in contact with the intake, if so, simply rotate the smaller coolant hose 90* clockwise (Forward-Looking-Aft) around the larger tube. This can be accomplished by slipped a zip tie underneath the band that keeps that two hoses together and shimming it around until the smaller hose is free to rotate. This will ensure that the intake doesn't rub through the coolant hose. (FINAL PHOTO SHOWS HOW THE COOLANT TUBES NEED TO BE ORIENTATED)

2. I used an AEM-21-203D air filter, but it will work with any air filter with a 3 inch opening that will physically fit within the engine bay. 

3. The ECU may throw a code for too lean during WOT, but after a few miles and few pulls the ECU will adjust and everything will smooth out. (This happened to me after installing my CAI, but it went away within ~10 miles)

4. I have done over 20k miles on mine through 105*F+ summer heat, -6*F winter storms, autoX's and lots of WOT with no issues and no CEL!