A flow test is performed to measure airflow through a stock Mk7 GTI airbox with the snow grate removed and using a MST inlet hose and turbo inlet pipe. This is a variation of the MST/Stock setup that was compared with aftermarket intakes. The change in this case is the substitution of a stock air filter for the aFe filter.
![Mk7 GTI Stock Airbox Airflow Test](https://mygolfmk7.com/wp-content/uploads/2019/10/stock_airbox_and_filter_with_mst.jpg)
Note: The stock filter is used.
Results:
![Modified Stock Airbox with Stock Air Filter](https://mygolfmk7.com/wp-content/uploads/2019/10/mod_stock_airbox_and_stk_filter.png)
The change from the aFe air filter to the stock air filter produces a drop in airflow from 383 CFM to 375 CFM.
Thanks for the review, very
interesting.
In Europe is very difficult to find aFe filters, any good alternative?
I have not tested any others. Perhaps AEM?