Just wondering if anyone has results from doing the exhaust upgrades? You know like actual horsepower gains, torque, ect. Have seen a few on you tube, but graphs are tiny and incunclusive. Just wondering which way to go as far as trying to keep a semi- realistic budget. Like the Morton's but, have seen any tests, also wondering about fuel management system, all do the same thing??? Are they customer tunable, need laptop and program, or just educated guessing, ????? I know lots questions, but have seen too many vid clips and opinions from people who really seem more worried about the sale than the final results. Thanks all.