Yamaha off-road motorcycle // sport atv fmf powerbomb gytr head pipe
Exhaust
The Stainless Steel PowerBomb™ is a four-stroke header
that incorporates the patented PowerBomb™ module at a
precise location in the initial stage of the header. By positioning
this “Bomb” at a key point in the system, increased
performance and flow is achieved through the expansion
and contraction of exhaust sonics through the system. The
result is a flow increase of nearly 10%! The outer chamber
in the PowerBomb™ allows the air to expand, cool, and
ramp back up at a higher velocity. Additionally, the PowerBomb
™ is a “pre-muffler” of sorts, which helps to lower
the bike’s sound output by providing more sound absorbing
surface area for the sound medium (exhaust gases). The
PowerBomb™ provides power focused in the mid to upper
rpm range.Note: This accessory affects emissions; installation on EPA-regulated 2006 or later WR models constitutes unlawful tampering except when used solely for closed-course
competition. YZ models are for closed-course use regardless of modification.
Note: This performance accessory does not meet California standard for off-road recreational vehicle usage regardless of model year.
Yamaha off-road motorcycle // sport atv fmf powerbomb gytr head pipe
Yamaha off-road motorcycle // sport atv fmf powerbomb gytr head pipe
