Ran these for about 2500 miles with a 85mm then a 82mm. Once I went down to a 75mm, I went off road pipes. Have since sold my Mustang so no longer need these. The legs are to their LT headers. Kooks Part # 307540 Price - $150 plus shipping fees. Highly prefer a USPS Money Order. If my asking price is unreasonable, I will consider lowering if you can show me the better offer.