MBRP S7110 Challenger SRT8 cat back dual exhaust with tuning tubes for no drone.
Muffler shop did the work since easier on a lift than on jacks in the garage (not impossible just a PITA)
Shop removed old cat back. Cut passenger side pipe so it would fit in trunk to avoid return with my truck to pick up - if put back on can be welded together.
New system starte assembly on floor to see how tuning pipes and straps work. Little readjusting of these straps and bolt to resonator not difficult but need to work it.
Positioned all pipes/resonator/muffler/tips hanging on rubber hangers in place. once all was in place pushed/pulled/twisted and aligned system and tightened all into position.
All is close but anticipate all clamps will need retighten after some heat cycles so I will fine adjust then.
All ready to go in less than 1 hour.
Performance/sound
Since I have substantial head/cam/tuning I (and my wife) have been driving the car mildly till we get some logs checked out and verify AFR is safe.
The car sounds more aggressive at an idle as well as when I step into it. Not much louder than the 6 speed exhaust (remember the 6 speed has the suitcase mufflers ommitted) but sharper more muscular sound - yes it sounds like a muscle car not a euro tuner car. The car feels more responsive, but I think the old exhaust was choking all that head and cam - let's see after fine another dyno tuning and being safe on AFR. Sure is nice to get rid of the big heavy mufflers and relatively ugly welds on the factory exhaust.
Drone - non existent - this system has an exhaust sound you can hear with some RPMs but no annoying drone - drove a lot in the 1500 to 2000 rpm range in all gears to see if I get this resonance/drone - none - Think these guys got it solved.
Overall, Like the fit finish and function of the system.
I bought my system from a guy who put it on an auto SRT8 and had some fitment issues. Not sure the system will fit automatic, the only area Im not sure about is the hangers that hold up the suitcase muffler (auto) vs the hangers on the 6 speed holding the pipe/small muffler/resonator.
I hope this helps. Didn't get many pictures - they kept me out from under car for insurance/OSHA regs - so I'll deal.
Hope to get you more pics and video and maybe a dyno sheet once I get it tuned.
Eric