AM which one of your flow masters do you recommend for a stock 00 Mustang gt?
I definitely agree with everything said above. You definitely want to go Stainless Steel, they'll last much longer! Flowmaster will give your 00' GT that "Classic" Mustang exhaust note that everyone loves.
The 40 series is much louder then the 50's and is also the most common flowmaster out there!
I hope this helps. Let me know if you have any questions!
__________________ Dan Bailer | AmericanMuscle.com Toll Free: 866.727.1266| Mon-Fri 9AM-9PM Sat 10AM-4PM EST Bama Direct: 888.226.9764|Mon-Fri 9AM-5:30PM EST FREE SAME-DAY SHIPPING IN THE US-48 AND PRICE MATCHING!