Powerful, Reliable and 50 State Legal -
Proven on the streets and strips of the U.S. over the last 3 years,
STILLEN makes the most reliable forced induction kit for the FX35.
Our Stage 2 kit was the first forced induction kit to gain CARB
approval; it is legal for street use in all 50 states!
Twin Rotor Design -
This is the same unit employed by OEM manufacturers such as Jaguar,
Mercedes, Ford, General Motors, Toyota, Nissan and others. We chose
it for the same reasons they did - excellent peak power coupled
with superior low end and midrange. Check the comparison dyno chart
- as you leave idle the STILLEN blower is making gobs of power and
torque before the centrifugals and turbos spool up. On the street
or track, this is a faster and more user friendly system.
Maintenance is minimal.
The STILLEN engineering team worked intensively on this project for
nearly a year before the first unit was sold. How detailed an
undertaking this was can be illustrated in the intake plenums.
Several designs were tested. The end result optimizes air flow,
fuel distribution and efficient power production. It also provides
for the intercooler. The production of the plenum is a multi step
process. First the pieces are cast using a STILLEN developed mold.
Each piece is then deburred in the STILLEN machine shop. It is then
sent out for heat treating. After heat treating it is powder
coated. It then returns to STILLEN for final machining. And this is
only one of several hundred parts that comprise the STILLEN
The STILLEN supercharger is supplied to you or your installer fully
tuned. Additional fuel, when needed, is supplied via a 7th injector
that is mounted in the inlet tube. It is regulated via an
electronic unit that is factory set for your vehicle. This also
modifies the timing map to optimize it for the supercharged
The result is a faster, more fun and dependable unit. The STILLEN
supercharged FX35 has a split personality. On the one hand it is
has the acceleration of a rocket sled - it's fast enough to get you
into or out of trouble. On the other, it is well mannered and can
be driven normally around town or on the freeway. In normal
driving, gas mileage is minimally affected.
– Entry level, no intercooler. Not 50
state legal. Intercooler can be added later.
Intercooled, 50 state legal, optional engine warranty available.
Our most popular configuration.
Intercooled, higher boost pulley, not 50 state legal, no engine
warranty available. High power with minimal risk.
Intercooled, highest boost pulley, remapped black box, larger
injector, high capacity fuel pump. Available only as kit for
existing Stage 2 or 3 unit. Not 50 state legal, no engine warranty
• The Most Reliable Forced Induction for the FX35.
• Choose Your Power - Four stages available.
• Quiet Operation, no Whistle. Powerful, Reliable and 50
• Comprehensive Instructions. Average Install Time of 12
• The Only 50 State Legal Supercharger or Turbocharger for
the FX35 (Stage 2 only).
• The Only Supercharger or Turbo Kit with an optional 3 year
/ 36,000 mile engine warranty (Stage 2 only).
• The most mid range power and torque - no one else comes
• Available in black or polished finishes (additional cost
• Delivered Fully Tuned for Your Vehicle.
• Sophisticated Fuel and Timing Management.
Click Here to Hear In-Car Audio
of a STILLEN Supercharged FX35!