September 8, 2010 No Comments Free Piece of Flame-Grilled Chicken, Warm Tortillas and Fresh Salsa El Pollo Loco 30th anniversary celebration. The coupon is valid 9/15 only. No purchase required. Offer valid with coupon only. Free Piece of Flame-Grilled Chicken, Warm Tortillas and Fresh Salsa – EXPIRED Facebook Twitter Add Comment Notify me of follow-up comments by email. Notify me of new posts by email.