2015 Challenger RT Shaker (5.7L, 6 speed manual)
I’m happy with the performance, although the engine is still stock so the main benefit is the sound! Brand is Solo Performance, they make some great systems. With the MR2 resonator center section there’s plenty of clearance - I’m not so sure I would have had clearance with the single muffler but I may be able to measure and see. If anyone is ordering the catback I’d go straight for the MR2, sounds better and I can verify it has clearance on a 2015+ Manual trans challenger.I think it was engine masters that did a You Tube engine DYNO test, with straight parallel duals, a H pipe setup, and an X pipe setup, they used the same mufflers in their test. Both the H and X pipe showed increased performance over just straight parallel dual exhaust, but the X pipe setup was actually quieter, it seemed the X pipe had a noise canceling effect. The performance between the H and X pipe were so close that it did not make much of a difference between the 2, but if they were after their exhaust sounding better that may be why they went with the H pipe. Your performance should be impressive with that new exhaust setup, what exhaust brand is that, and how much clearance did you have from the driveshaft?
One other note - during install I had a brief “uh oh” moment, as my gap at the transmission CV was over 5”, and the sticker on the driveshaft specified 4” or so - turns out the spec on the sticker was for the auto setup, the sheet the driveshaft came with specified a gap in the 5” range for manual trans, I think 5.25”-5.75” which mine was within.