我阅读并看到了一些照片，其中一些车手钻入了备用空气箱的下部，以获得更多的气流。我不能'为了让自己钻进可以看到的位置，所以我在盒子背面的下部腔室的每一侧钻了4个孔，在底部钻了2个孔。我没有't notice much of a difference in the overall performance, BUT, an unexpected plus was that it did give the bike lower "隆隆" sound, not just from the exhaust, but from the air box itself. I'm no bike mechanic, but with the noisy air cooled engine, the new sound was welcomed, and it was my favorite price..."免费"!
