New Muffler Exhaust Fits Honda GX340 GX390 11HP & 13HP with Manifold & Nuts $ 36.95 Default Title Add to Cart Please fill in the form below if you'd like to be notified when it becomes available. Your Email Send This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply. Fits HONDAMODELS: GX340 11HP & GX390 13HP INCLUDES: 1X MUFFLER WITH HEAT SHIELD 1X MANIFOLD 1X EXHAUST NUT SET