I have hedman 1-3/4 headers, 3-inch collectors, next 3 inch cutout ( the kind you can buy in Summit ), through 3 inch Dr. X crossover, in to 2 Dyno max race bullet (cans ) mufflers, 3 inch over axle, into two 3 inch 2 chamber Flowmasters under the trunk floor ( fuel cell in trunk ). 455 Th400 3:73 rear ran 13:00-104 flat off the street (zero traction). Slicks and open cutouts 12.5--107. I love the sound from the Dr X crossover. Mark L
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