The 2015-2016 Shelby GT350R has several weight and aural advantages over the stock GT350 Mustang, namely the removal of major items such as air conditioning, stereo, rear seats, trunk floorboard and carpet, and the removal of the midpipe exhaust resonators.
This is what gives the R variant that distinctly sharp exhaust tone which is slightly more muted on its more street-friendly sibling.
As the months roll by and more owners take delivery of these vehicles, one completely foreseeable result has been the surge of aftermarket GT350 parts and modifications to bridge the gap in both performance and sound to match that of the R package.
M6G members Tonio and 04Terminator have already gone ahead and commissioned shops to cut into their GT350 factory pipes in order to remove the exhaust resonators and unleash the full potential of their vehicle’s exhaust tone. This involves cutting the resonators out and welding replacement piping in its place. While weight savings and power differences will be minimal to non-existent, it is a very inexpensive modification that many GT350 owners are sure to perform shortly after taking delivery.
These owners who have deleted the resonators report that the sound really awakens in the mid-to-high revs and in sport mode, while remaining relatively tame at idle and low-rev — a perfect balance for most street drivers.
See the exhaust video comparisons in the forums.