TECHNICAL DATA IN THIS GUIDE IS BASED ON 2015 VW GTI
STAGE 1
Required hardware upgrades:
Please remove the factory snow screen as well as trim the air duct to allow increased air flow. This gives much more air to the engine, and we have seen power up to 450-470PS using the stock intake with this modification. If you have an aftermarket intake installed, you can ignore this step. However, we do recommend using the Factory airbox with this modification instead of an aftermarket intake system.
1-step colder plugs for Stage 2+ cars:
Recommended Spark Plug Upgrade | Model | Notes |
|---|
Denso | 5749 | pre-gapped (slant tip) |
Brisk | ER12S | Gap to 0.024" |
NGK | 4905 R7438-8 | Pre-gapped (slant tip) |
For all slant tip spark plugs check the gap to ensure it is not overly above spec but in most cases, they are 0.024-0.028 out of the box. These do not follow the same gap procedure as a standard spark plug and should be left alone.
It is recommended to check the spark plug gap after 5000 KM (3100 Miles) as well as the TQ, and to change them after 10,000 KM (6500 Miles) for optimal performance and safety.
STAGE 2
Required hardware upgrades:
Hardware upgrades as tested:
Supported Fuel for Stage 1 and 2
Octane/Ethanol | Supported Ready files |
|---|
91 Octane | Yes |
93 Octane | Yes |