gm 411 good or bad
gm 411 good or bad 
after several attempts to figure out what my other 411 were i just went out and purchased a brand new set of gm 411 7.5 gears. i want to know if these are going to be noisy and am i going to have problems breaking i have a 2002 firebird formula
-flowmaster exhaust
-slp y pipe
-slp maf
-afe air filter
-slp air box+ smooth bellow
-slp air temp module
-slp cold air
-throttle body spacer
-200 amp alternator
eventually i will get headers, cam and heads-possibly underdrive
