RawGtPower

If you want bass, then just dump your exhaust. If you want chamberless mufflers, then just get the SLP loudmouth exhaust. It sounds mean and loud as hell.

Valcore

just disconnect your H pipe and the rest of the assembly

also known as open headers

99mustang0

Actually i was set up to buy the loudmouth but then i heard these on a mustang and decidided that for the price i loved the sound of these. So i went ahead and bought em, if i dont like them i will just go ahead and get the slp. I have heard nothing but good stuff about SLP. And i ran open headers for a lil while on my 82 gt before i got exhaust and it gave me a effin headache. (sounded pretty cool though)

Tims 88GT

sounds like ****[:@]

LesteR723

try pairing them with mufflers

headers/mid-pipe (glass packs in the middle)/mufflers/tips

good sound IMO

91lxstang

i have magnapacks on my car (91 5.0 hatch) and they sound great... mine are dumped at the rear axles and im about to install a bbk off road h pipe to make it even better!!!!!

99mustang0

what sounds like ****??

DR8907

open headers...

Mustang5.0_GT

f tha **** ... i have an off road H pipe wiht SLP LM1s whichc are the same as packs soufn fckin sick! and so much better then ffiws...

sry im a bit crunked right now

Tims 88GT

open headers rock, magnapacks sound like glass packs. super 40's are just about the best sounding muffler you can buy. spintech mufflers rock.