Sito Plus Exhaust System Vespa PX 80 / 125 / 150 – More Power in Original Look

The Sito Plus exhaust system is the legendary choice for all Vespa riders who want noticeably more power without altering the classic look of their scooter. From the outside, the Sito Plus looks strikingly similar to the original exhaust, but inside, it conceals a completely newly developed design. This construction ensures significantly improved performance in the mid and upper RPM range. If you want to give your Vespa PX a boost in torque and a higher top speed without directly switching to a prominent racing exhaust, this exhaust is the perfect solution for you.

In addition to the power increase, the Sito Plus impresses with its rich, but not intrusive sound. It gives your PX exactly the acoustic presence that matches a powerful engine. The system is made of high-quality steel and painted black, making it the ideal partner for your everyday scooter. Since it was specially designed for the PX models with 80cc, 125cc, and 150cc, the fit is excellent. You are investing in a genuine performance upgrade that harmoniously combines driving pleasure and discreet design.

Tips for Installation and Tuning: Since the Sito Plus increases gas flow compared to the standard exhaust, you should definitely check the carburetor jetting after installation. Often, a slightly larger main jet (about 2 to 4 sizes larger) is advisable to ensure optimal combustion and cooling of the cylinder. When installing, make sure that the exhaust is mounted free of tension to avoid cracks from vibrations. A new exhaust gasket at the cylinder flange is absolutely essential for a tight system.

This item fits the following models:
PIAGGIO VESPA 125 (T1/125) (D) VNA1-2 1957 – 1959
PIAGGIO VESPA 125 (T2/125) (D) VNB1-6 1959 – 1965
PIAGGIO VESPA 125 GT / 125 Sprint VNL1-2 1961 – 1973
PIAGGIO VESPA 125 GTR VNL 1968 – 1978
PIAGGIO VESPA 125 S VNS1-6 1959 – 1965
PIAGGIO VESPA 125 Super VNC1T 1965 – 1969
PIAGGIO VESPA 125 TS VNL3T 1975 – 1978
PIAGGIO VESPA 150 VBB1-2 1960 – 1967
PIAGGIO VESPA 150 VBA1T 1958 – 1960
PIAGGIO VESPA 150 (T4/150) (D) 150 VGLA-B 1959 – 1965
PIAGGIO VESPA 150 GL VLA1T 1962 – 1964
PIAGGIO VESPA 150 GL Touring (DK) VGLA-B 1957 – 1958
PIAGGIO VESPA 150 Sprint VLB1T 1965 – 1974
PIAGGIO VESPA 150 Sprint Veloce VLB1T 1969 – 1979
PIAGGIO VESPA 150 Super VBC1T 1965 – 1979
PIAGGIO VESPA COSA 1 150 VLR1T 1987 – 1990 (Mount must be modified)
PIAGGIO VESPA COSA 1 125 VNR1T 1988 – 1991 (Mount must be modified)
PIAGGIO VESPA P125X VNX1T 1977 – 1982
PIAGGIO VESPA P150 S VBX1T 1978 – 1990
PIAGGIO VESPA P150X / PX150 E VLX1T 1978 – 1985
PIAGGIO VESPA P80 / P80 E (France) V8A1T 1980 – 1984
PIAGGIO VESPA P80X/PX80 E V8X1T 1981 – 1983
PIAGGIO VESPA PX 80 E Lusso/ EFL/ Arcobaleno / Elestart V8X1T 1983 – 1990
PIAGGIO VESPA PX100 E VIX1T 1983 – 1984
PIAGGIO VESPA PX125 2011/ 30 years ZAPM74100 2011 ->
PIAGGIO VESPA PX125 CAT ZAPM50100 2007 ->
PIAGGIO VESPA PX125 E VNX 1981 – 1983
PIAGGIO VESPA PX125 E 1998 / Millennium VNX1T 1998 – 2005
PIAGGIO VESPA PX125 E Lusso/EFL/Arcobaleno / Elestart VNX 1983 – 1997
PIAGGIO VESPA PX150 2011 ZAPM74200 2011 ->
PIAGGIO VESPA PX150 E 1998 / Millennium VLX1T 1998
PIAGGIO VESPA PX150 E Lusso/EFL/Arcobaleno / Elestart VLX1T 1983 – 1997
PIAGGIO VESPA VNT1-2 1960 – 1962

OEM numbers (for comparison purposes): 0254 (SITO)