okay, so after about 2 weeks of the Magnflow
my mpg went up about 1mpg, worth every penny..
Sound level, thats another story. If I was in my 20s
I would of loved it. Outside the car, it actually wasnt too bad
but inside it under throttle it started to grate on me.
SO, today I had it replaced with a Dynomax super turbo.
Generally known to be a little more mild with same hp gains.
And well, I do like the sound level much better. Performance
feels the same to be honest too and I still shaved off about
30 lbs over stock.
The muffler avg cost about $80, a little less then the Magnaflow.
Granted the turbo muffler is glass packed, Ill probably end up
replacing it in 2-3 yrs. Not a big deal.