Shorty headers means they will replace your factory units and connect at catalytic converters. They are cheaper and on some occasions easier to install but the performance gains if any are minimal. They can help keep the heat level down if they are coated and will change the sound of your car if the design is different but in terms of power gains they are not your choice.
Long tubes are usually flow through designs that connect way under the car often bypassing the catalytic converters and overall having a much better and less cramped design. These will make the most power especially in F/I application and should be the ones to get if you want some power out of your car.
The reality is that these cars have great factory exhaust systems which are expensive to replace. If you're looking for more speed out of your car there are better areas to focus on before tackling the exhaust.
Long tubes are usually flow through designs that connect way under the car often bypassing the catalytic converters and overall having a much better and less cramped design. These will make the most power especially in F/I application and should be the ones to get if you want some power out of your car.
The reality is that these cars have great factory exhaust systems which are expensive to replace. If you're looking for more speed out of your car there are better areas to focus on before tackling the exhaust.
go LT if your emmisson laws allow if. nj doesnt allow LT so i went shorties. here is a vid my setup. JBA shorties, magnaflow catted X, stingers.
YouTube - 08 Mustang GT JBA Shorty Headers, Magnaflow catted X and Borla Stingers
YouTube - 08 Mustang GT JBA Shorty Headers, Magnaflow catted X and Borla Stingers
nj doesn't allow them? I passed with my 95 with flying colors. i haven't heard anything about longtubes being illegal, but they don't do underhood checks anyway
you would fail for a visual. they are mad picky. NJ is similar to CA. they have always checked under the hood for me when i had my 98 explorer with mods and checked for cats. i guess u got lucky. if they were to look and you have the C.A.R.B Plate on the headers your good to go.