Finally after weeks of waiting for Magnaflow to have stock on these I got mine.
Construction on the catback is fantastic, FINALLY rid of that horrible football shaped piece of junk on the back. Yes, I could have had it cut off and yes I could have had a muffler welded in for less but I greatly prefer the look of this dual tip setup and you can see the stainless steel pipes through the wheel well. It has a great 'finished' look to it and sounds awesome. For me the extra cost was worth it in terms of appearance and construction. Plus I love DIY mods.
Install... pretty straightforward except for my horribly rusted bolts. Sawzall to the rescue .
Noise level... I'd say its more on the tame side ... very tame at 70mph.. just about perfect. I'm a little bias though I've had Magnaflow catbacks on my last 2 Mustangs and I really like the sound. I had MAC Flowpaths (similar to Flowmaster) on another Mustang many years ago and didnt like it as much.
It resonates very slightly as you are slowly accelerating for a split second but that is about it. Its very minimal but I wanted to mention it. The 5 speed transmission puts the revs out of the loudest range at 70mph cruising speed.
I will post some sound clips in the next day or two.
Man I need to get those 5100s in and get that nose up.