cyclonic

2019 was a wild time for 100 series owners, not least of why because Slee hadn't come out with their battery tray yet. In that era, to fit in a second battery system, we searched for the sainted and frankly much cooler cyclonic airbox, and lusted after an australian battery tray to compliment...

Purchased a few Denso air filters. I've never noticed before but either the top or the bottom is textured whilst the opposite is smooth. I don't recall the OE filter having this. The one I bought from NAPA years ago is smooth on both sides. Is there actually a polarity on the air filters...