This is the version with resonators.
Synapse Engineering's R35 GTR downpipes are race-proven and dyno
tested to gain 25 HP to the wheels (refer to dyno chart for more details)
This configuration is made of 304 Stainless Steel. This configuration has
been designed and tested in competition. Although heavier than Titanium,
304SS has 2x the shear strength of Titanium under normal and extreme