based on hearing THESE IN PERSON
a magnaflow on a 94 SLE,
a magnaflow on 95 ssei with 3 inch tubing, no cat, no resonator
a dynomax on 94 SSE with gutted cat (and i believe the stock resonator)
my flowmaster on 94 SLE with stock cat and resonator
I STILL LIKE MINE THE BEST FOR SMOOTH EVEN TONE
like has been said many times.......sound is personal preference......personally......magnaflows are raspy in my opinion..and thats not what i'm going for.
PERFORMANCE....even though the flowmaster obviously flows better than my old stock muffler, but my car is no where fast and isn't going to be with 181K on the clock.....and just an intake up front......flow is better.....gas mileage probably was affected.
magnaflow may provide bigger HP gains...but i really don't care. i went for sound.
either way a high flow or performance muffler is added performance.
SOUND.....i'd still vouch for flowmaster
I THINK THIS DEBATE IS OVERKILL JUST LIKE TURTLE ON THE DYNO is......put what you want on your car...and shut up....
2004 Torch Red Coupe
2001 Pontiac Bonneville SSEi - 103,000 miles - Galaxy Silver - Daily Driver
1994 Pontiac Bonneville SE - 209,000 miles - Light Gray Metallic - SOLD