I've been excited to announce this all week - we picked up the Kooks line of headers and exhaust components for late-model Mustangs! As many of you know, we're all about quality components. When it comes to exhaust, Kooks headers are the Rolls Royce! These headers are fully constructed of T304 stainless steel and 18 gauge thickness. They're also fully madrel-bent for amazing flow that will help you pick up as much as 30RWHP across the powerband. We've tested 2005-2010 Mustang GT's between 17-21 RWHP increase naturally aspirated and over 27 RWHP in forced induction applications with the addition of Kooks Custom Headers. We've tested our 2011 Mustang GT and seen between 26-30 RWHP increase naturally aspirated with the addition of Kooks Custom Headers. Forced induction results will be available in the near future! These will require a tune update. If you're one of our Bama Free Tunes for Life members, simply give Bama a call at 888.226.9764 and let them know you're adding some Kooks and they'll email you updated tunes instantly! Why buy these from AmericanMuscle? *Free Same-Day Shipping*Lowest Kooks Pricing Around*In-Stock - No Dropship/No Waiting*Expert Customer Service*Kooks Preferred by Bama Custom Tuning Get $20 off Kooks Headers instantly! 1. Share Kooks Headers with your Facebook friends. 2. PM me with a link to your Facebook page. 3. Get a $20 dollar coupon off a set of Kooks headers before Jan 1st, 2011.