🔊 Flowmaster 942543 2.5 In/Out 40 Series Df Muffler: Unleash Powerful Sound and Performance Review

I installed these on my 85 gmc with 350. It has Flowtech fittings and Delta 40s. I love it. Uncle said it sounds better than his zr1.

You already know what a Flowmaster muffler is, why are you reading reviews about it. Good quality, some drone, sounds great when you step on the gas.

Garbage. My stock exhaust sounds better. If it was good I would order it for my other truck but I better have a supply. Total waste of $100

Didn't fit my intake manifold very well. I also don't care about the rice burner noise when you hit the gas a bit, but that's on me, I didn't understand what I was buying. But in general everything worked out for me and the car sounds better overall.

I installed this on a 2003 Mustang V6. The only aftermarket part on it is the CAI. The exhaust has a nice deep tone. It's not too loud, not too quiet. It seems to growl as early as 1400rpm and then everything from 2000rpm onwards. It could be a bit louder, but it's modest and not for those who don't want to be annoying and wake up the whole area.