Billetworkz 排檔套固定環 10x1.50mm (Honda / Acura)

Finally, no more loose shift boot sagging into the tunnel — this little ring locks everything flush. Threaded right onto my 10x1.5mm shifter with no fuss, and the machined aluminum feels solid.

I've been staring at that sloppy gap around my Si's shifter for way too long, and this retainer closed it up in about five minutes with just the 10x1.50mm threads screwing right on. The finish looks factory now, like it came that way from the dealer.

That annoying gap between my shift boot and knob finally disappeared once I screwed this on. The threads matched up cleanly at 10x1.50mm and it sits flush enough to look factory. Interior looks way more finished now.