6AN to 10AN Expander

Needed to step up from a 6AN line to a 10AN return, and this expander did the job perfectly—the threads cut clean and the connection feels rock-solid. The matte black anodizing holds up well under the hood without looking out of place.

The matte black anodized finish looks clean under the hood, and the 6AN-to-10AN step up was a perfect fit for my fuel rail swap. Threaded on smooth, no leaks on the first try.

Swapped out a 6AN line on my return setup and the 10AN male side threaded on smooth without any binding, the matte black finish hides grime well. No leaks after a few heat cycles, so it’s doing its job.