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Racing Exhaust SIP ROAD XL

for Vespa 125 VNA-TS/150 VBA
steel, black,
fits wide tyre, large exhaust


Following a development period of several years the SIP Road exhaust range now has another generation. After dominating the large-frame touring exhaust market the time has come to challenge the most powerful pipes on the block, traditional racing exhaust systems with separate silencers, your dominance is over!

The introduction of the SIP Road XL relegates this class of exhaust to the optical type of tuning. If ever an exhaust deserved the term, the SIP Road XL is truly a wolf in sheep's clothing. This pipe resembles the original item so closely most have to look again to guess its true heritage and potential. It has enormous internal dimensions, very similar to the volume of most bazooka style expansion / silencer type systems. The SIP Road XL is assembled using a double-walled construction. It has been designed with a layer of silencer wool between the solid outer and inner perforated layers of steel to ensure that this exhaust sounds as unobtrusive as it looks. This advantage keeps the neighbours happy while avoiding unnecessary attention from the authorities or your local ear doctor following longer tours on your Vespa.

The performance delivery we have achieved with the SIP Road XL is something we are especially proud of. The XL creates extra power over the complete rev range and also enables higher revs – normally only possible in combination with a SIP Performance, PM, RZ expansion chamber or similar. This enables overtaking in all conditions and makes high speeds possible, without any dangerous tailgating of lorries on the motorway while lying flat over your scooter!

The full power potential of the SIP ROAD XL really comes into its own on motor set ups with 20 hp and more. The results it achieved on various SIP test scooters certainly raised a few eyebrows! A POLINI 177cc cylinder with a 60mm con-rod crankshaft, 28mm carburettor and a YAMAHA RD 350 reed-valve manifold produced 20.9 hp in combination with the XL. One of our scooters fitted with a MHR cylinder, 60mm con-rod crankshaft, 34mm PWK carburettor and a MMW reed-valve manifold was capable of producing 28.3 hp, both measured at the rear wheel! This makes the XL equivalent to the SIP performance 2.0, completely eclipsing other box-style exhaust systems on the market and is 4 hp more powerful than our very own SIP ROAD 2.0 touring exhaust

This high performance potential deserves its combination with an after-market race cylinder. The manifold can be attached to the outlet stub on the cylinder with a traditional clamp or a spring system and scooters with eight inch wheels will require an upgrade to ten inch items.

Tip: When the position of your exhaust outlet on the cylinder has been changed, mostly due to a crankshaft with an increased con-rod length being fitted, you may experience difficulty while attempting to fit the exhaust due to the cramped conditions. This can easily be remedied by enlarging the exhaust manifolds mounting holes by between 3 and 5 mm. The exhaust is then easier to position over the exhaust studs on the cylinder and solidly fasten.

Conclusion : This system delivers the performance of the larger 'SIP Performance' exhausts, with the discreet appearance of the SIP Road 2.0, its little brother in the range.


Performance exhaust / five segment manifold / XL version

Steel construction, voluminous five segment manifold section, strengthened attachment bracket, heat-resistant paint, plug & play!

Wide tyre mounting, spare wheel and main-stand compatible. Older Vespa models require minor main-stand and exhaust bracket modification. If you wish to fit this exhaust system to a Vespa largeframe model, such as a Sprint, Rally, VBB or similar, the mainstand may require slight modification to avoid fouling!

As always, for safe and enduring use of this exhaust both the jetting and the ignition timing must be checked / modified before use.


SIP-TIP : When combining this exhaust with a 166 - 177cc cylinder we recommend you also include at least a SI 24 carburettor and taller gearing in your set up. For 200cc motors with a SI carburettor the size of the main-jet should be increased by at least ten grades. A MALOSSI 210cc cylinder, a Cosa model clutch, a race or bell crankshaft and a modified cylinder head are highly recommended. In combination with a Vespatronic ignition, a reed-valve manifold with 30-36mm carburettor, a reed-valve bell crankshaft the SIP Road XL can produce around 30 hp!


SIP-Man Robert, April, 2015 :

“The SIP Road XL has been fitted to numerous SIP scooters and has impressed many people with its performance. My 10” wheeled VBB model with a MALOSSI 210cc produced about 24 hp when fitted with a normal SIP Road, the new XL version produces a proud 26,9 hp on the same motor, 1.5 hp less than the 'SIP Performance'! Strong competition for all full-blown expansion chamber type pipes!”

OEM Numbers (for the purpose of comparison)  (SITO)

Customers also searched for this article with:  tuning exhaust, tuning exhaust system, performance exhaust, expansion chamber, exaust, race exhaust, exhuast, racing exhaust, pot

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Spare Parts
icon scootermodels This product fits the following models
divider Producer/Model divider cc divider Type divider Engine divider Yr. of Const. divider Extra
LML Star 125 2T/ DLX / Via Toscana / Deluxe 125 2T AC
LML Star 150 2T / DLX / Via Toscana / Star / Stella / Belladonna RV 150 2T AC
divider Producer/Model divider cc divider Type divider Engine divider Yr. of Const. divider Extra
VESPA 125 125 VNT1-2 2T AC `60-`62
VESPA 125 (T1/125) (D) 125 VNA1-2 2T AC `57-`59
VESPA 125 (T2/125) (D) 125 VNB1-6 2T AC `59-`65
VESPA 125 GT / 125 Sprint 125 VNL1-2 2T AC `61-`73
VESPA 125 GTR 125 VNL2T 2T AC `68-`78
VESPA 125 S 125 VNS1-6 2T AC `59-`65
VESPA 125 Super 125 VNC1T 2T AC `65-`69
VESPA 125 TS 125 VNL3T 2T AC `75-`78
VESPA 150 150 VBB1-2 2T AC `60-`67
VESPA 150 150 VBA1T 2T AC `58-`60
VESPA 150 (T4/150) (D) 150 VGLA-B 2T AC `59-`65
VESPA 150 GL 150 VLA1T 2T AC `62-`64
VESPA 150 GL Touring (DK) 150 VGLA-B 2T AC `57-`58
VESPA 150 Sprint 150 VLB1T 2T AC `65-`74
VESPA 150 Sprint Veloce 150 VLB1T 2T AC `69-`79
VESPA 150 Super 150 VBC1T 2T AC `65-`79
VESPA COSA 1 150 VLR1T 2T AC `87-`90 holder must be modified
VESPA COSA 1 125 VNR1T 2T AC `88-`91 holder must be modified
VESPA P125X 125 VNX1T 2T AC `77-`82
VESPA P150 S 150 VBX1T 2T AC `78-`90
VESPA P150X / PX150 E 150 VLX1T 2T AC `78-`85
VESPA P80 / P80 E (Frankreich) 80 V8A1T 2T AC `80-`84
VESPA P80X/PX80 E 80 V8X1T 2T AC `81-`83
VESPA PX 80 E Lusso/ EFL/ Arcobaleno / Elestart 80 V8X1T 2T AC `83-`90
VESPA PX100 E 100 VIX1T 2T AC `83-`84
VESPA PX125 2011/ 30 Jahre 125 ZAPM74100 2T AC `11-
VESPA PX125 CAT 125 ZAPM50100 2T AC `07-
VESPA PX125 E 125 VNX2T 2T AC `81-`83
VESPA PX125 E `98 / Millenium 125 VNX1T 2T AC `98-`05
VESPA PX125 E Lusso/EFL/Arcobaleno / Elestart 125 VNX2T 2T AC `83-`97
VESPA PX150 2011 150 ZAPM74200 2T AC `11-
VESPA PX150 E `98 / Millenium 150 VLX1T 2T AC `98
VESPA PX150 E Lusso/EFL/Arcobaleno / Elestart 150 VLX1T 2T AC `83-`97

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