2008 335i Stock vs. JB4
We pulled a stock 335 on the dyno and then we installed upgraded downpipes along with a JB4.
The results are quite impressive.
November 1, 2014
CATEGORY: BMW Tuning, News
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We pulled a stock 335 on the dyno and then we installed upgraded downpipes along with a JB4.
The results are quite impressive.
