I have a helix spacer that i need to sell ASAP ! I used it for 7 months, still is in excellent condition. This mod is dyno proven. Ei-ccord(toby) dynoed an accord with this spacer, and it showed a 3HP,3TQ increase. The fuel economy also went up about 4 MPG. I orginally bought this from nopi for $85. I am willing now to let it go for $45 plus shipping. Good luck on your bidding !