Reviewed By Robert C (North Las Vegas, NV) Reviewed for a 2003 Ford Thunderbird —10/12/2017 9:04 AM
Perfectly replace stock resonators (18 inch).
Reviewed By Homar B (Artesia, NM) Reviewed for a 2006 Ford F-150 —5/11/2018 6:31 AM
Upgraded my 5.4 3v F150 from 2.25" true dual exhaust with Dynatech max long tubes and cats with super 40s to 2.5" with high flow cats and super 44s. The sound isn't as loud but more throaty with a little more rumble and the interior resonance was reduced drastically. Exhaunt flows much better now. I can't tell if my low end torque changed much but passed 4000rpm there is a big difference.