The Evolution of
the F1 sound does not stop here.
Ｖｅｒ４ has a wild, growl that evolves into the F1 sound we love.
The Version 5/5.1 is not as loud, initially. But it
evolves into a more distinct F1 sound at its peak.
Electronic Control Valve
The Electronic Control Valve System developed by APEXi work very
well together with the GT-One Muffler system. Control is
at your finger tips. Open it up for full GT-One sound,
Close for those late night returns to the garage.
When Open it is full GT-One F1 sound and all the bragging rights
that comes with it. When Closed, there is about a 5-10%
quieter exhaust note. About 94db with our manifolds and
exhaust. Might vary depending on vehicle.
Please check your local laws. A catalyst might be needed
to drive on public roads.
Made for both
NA1 & NA2.
（Please let us know what engine you will be applying this to）
Sound coming soon...
Full Titanium System 498,000 Yen with Tax &
Full Stainless System 258,000Yen with Tax & ＡＰＥＸi ECVS