2015 stock 103" with a better flowing air cleaner (Ness) and mufflers (RC). Will a Fullsac DX with the full diameter crossover cause a noticeable loss of low end torque?

 

I would think there is no loss of low end Torque, due to the design of the mid section of the
2-1-2 where the catalytic converter was replaced with the X pipe cross between joins.

 

You don't say what pipe you have now, so I'll assume you put the mufflers on the stock exhaust with the catalytic converters in place. If so, you will need to tune the fuel/air mix for the new pipe. At the very least this means a download. The more expensive but better option is to get it tuned using a tuner like the super pro tuner, TTS, Power Vision, etc. As for the pipe. The Fullsac DX is an excellent pipe for torque. As long as your tune is good you should pick up a couple lbs./ft.

 

According the dyno charts on Fullsac's website you'll only pick up low and middle torque, but lose a little at the top. The curves move to the left, which is what most of us want.

I am interested in the V&H Power Duals but these Fullsac DX pipes are looking better and use the stock heat shields.

Any updates on this thread?