I have a 2004 F-150 screw, i got a SIDO exhaust, flowmaster 40 i believe, if that sounds right to you guys, i have the tips coming out right in front of the passenger tire, the exhaust sounds good, but around 2500 RPM, it starts to sound airey, just like ALOT of air is coming out of it, i have had it for almost a year, and getting really tired of it, so what can i do? what is a good replacement for this? i want deep load (but not mustang with an x pipe loud), so what can i do, good replacements? thanks a lot guys

 

I have an 05 5.4 screw and last Thursday I just installed a magnaflow SIDO cat back exhaust. It sounds awesome and added some pep. I was very impressed as were all my friends and family.....my girlfriend on the other hand is already tired of me stomping on the gas just to hear that throaty growl.