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Auspuff Vespa PK 50 bgm PRO BigBox TOURING

New exhaust Vespa PK50 & PK125 racing exhaust BigBox TOURING bgm PRO

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NEW: Exhaust bgm PRO BigBox TOURING for Vespa PK50 & PK125

Quite secretly a new racing exhaust for Vespa PK has crept into our shop. Today we present the new Vespa PK exhaust from bgm PRO.

Vespa PK Rennauspuff - bgm PRO BigBox Vespa PK | HANDMADE in EUROPE

We have two versions:

  1. for Vespa PK50 & PK80 | BGM1050PK
    Exhaust -BGM PRO BigBox TOURING PK- Vespa PK50, PK80 (S/XL/XL2/HP/SS/Lusso)
  2. for Vespa PK125 & PK75 | BGM1125PK
    Exhaust -BGM PRO BigBox TOURING PK- Vespa PK125 (S/XL/XL2/ETS), Motovespa PK75 (S/XL/Junior)
bgm1050pk_BGM1050PKbgm1050pk_BGM1050PK
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bgm1050pk_BGM1050PK_7_bgm1050pk_BGM1050PK_7_
bgm1050pk_BGM1050PK_6_bgm1050pk_BGM1050PK_6_
bgm1050pk_BGM1050PK_5_bgm1050pk_BGM1050PK_5_
bgm1050pk_BGM1050PK_4_bgm1050pk_BGM1050PK_4_
bgm1050pk_BGM1050PK_3_bgm1050pk_BGM1050PK_3_
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The history of this exhaust system lies in the fact that there were no original Piaggio exhaust systems for the PK 50 models. During the development of a new exhaust we recognized the potential and were able to develop a sport exhaust with original optics, low noise level and a significant increase in performance. The bgm PRO quality exhaust is now handmade in Europe and is available immediately: bgm PRO BigBox TOURING Vespa PK

bgm PRO BigBox Touring VS Sito PLUS

On the dynamometer it looks like this:

Vespa PK Rennauspuff Leistungsprüfstand

 

bgm PRO BigBox for your Vespa PK

Vespa PK exhaust with more power, discreet look & low noise

The bgm PRO exhaust in the TOURING version thus provides the discreet look and acoustics of an original Vespa exhaust, combined with a sports exhaust characteristic with high torque and wide power band. This system was originally designed as a replacement for the original Piaggio exhaust systems, which are no longer available. In the meantime we have developed it to a full-fledged, modern sport exhaust system.

We attached great importance to a good performance with a discreet noise level as well as a good fit.

  • Significantly more power
  • Quiet racing exhaust
  • Good fit
  • Original optics
  • High and early torque
  • Wide speed range
  • More final speed
  • Very unobtrusive
  • Fits without modifications
  • Handmade in Europe

The bgm PRO Sport TOURING harmonizes very well with a standard engine as well as with the classic tuning cylinders like the

  • Polini 75-112,
  • DR75-102 or
  • Malossi 75-112
  • Polini 133

Auspuff Vespa PK 50 bgm PRO BigBox TOURING

Easy mounting

The relatively far down split manifold allows a quick disassembly of the exhaust body without having to loosen the manifold on the cylinder. The connection is secured by tension springs in a stable but quickly detachable way.

For safety reasons we recommend to start with 2-4 numbers more than a standard exhaust.

SCOPE OF DELIVERY

  • Exhaust body
  • Exhaust manifold
  • Exhaust Springs
  • Cylinder/ manifold gasket

Vespa PK Exhaust TIP:

  1. Adjust spraying, see above.
  2. Some heat-resistant sealing compound (see accessories for the exhaust) between manifold and exhaust body keeps this area permanently clean.

Exhaust PK 50: Matching Vespa PK

The PK exhaust fits the following Vespa PK 50 and Vespa PK 80 models:

Exhaust PK 125: Matching Vespa PK

The PK exhaust fits the following Vespa PK 125 and Vespa PK 75 models:

Order here: modern Vespa PK exhaust
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Testing Vespa exhaust on dynamometer BMG PRO BigBox Sport Malossi

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Vespa exhaust BGM BigBox Sport on dynamometer

Michael Holden from England is a loyal customer of Scooter Center. On his way to his run “holidays in Sauerland” he paid us a short visit and leapt the chance to test the Vespa exhaust BigBox Sport on the dynamometer.

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Vespa PX 200 with Malossi 210 and PHBH30 carburetor

His Vespa is a German Vespa PX200, which he bought when he was deployed in Germany with the British Forces.

The engine is a simple one and is made up of an “old” Malossi 210 cylinder, DellOrto carburetor PHBH 30, Mazzucchelli racing shaft with 57mm stroke and a Taffspeed MK4.

Michael tells us, that the engine was tested with the same parts in England on a Dynojet before he left. The result was 17.88BHP (Brake Horse Power). Giving us a value to compare with, when measuring and to assess whether the engine’s performance went down. The old 210 with the MK4 demonstrated the predicted performance. The difference in values from the Dynojet and from our dynamometer is only a few tenths. So you can see, the two results are comparable.

M. Holden Malossi 210 PHBH30 MK4

The 90s: Taffspeed MK4 Vespa exhaust

At the time (1996 the first systems with TÜV-certificate have been sold in Germany) the MK4 was a good all-rounder with positive performance. A positive performance was reached before having to respond. Overall you can say that an engine is regarded as one that “drives well” on the street, when it reaches at least 10HP from 5000 revs/min and when performance and torque increase with increasing revs. However, the MK4 is an exhaust with just below 18Nm at about 6000 revs/min and therefore forces the driver to change down to a lower gear when being in 4th gear below 90km/h and higher acceleration is demanded.

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The modern racing exhaust: BGM PRO BigBox Sport

When the MK4 was modern, no-one would have thought, that exhausts, which look like lunchboxes, would ever reach such a performance.

For a while now, more powerful exhausts are being developed with looks that resemble the original.

Leading to the BigBox:

Combining the performance of an expansion exhaust chamber with the looks of an original exhaust.BGM Tuning

BGM1011SP

BigBox Sport vs. Taffspeed MK4

A comparison of BigBox Sport and Taffspeed MK4.

bbs mk4

In contrast to the MK4, the BigBox Sport can add further torque and performance from 4500 revs/min. Comparing the engines on the street, let the scooter seem to drive more easily, because there is more torque for acceleration. The additional torque becomes crucial when the scooter is driven at at least 5500 revs/min on a motorway or highway.

Michael was convinced of the BigBox Sport. He wouldn’t even let us detach the test-exhaust and continued his trip to the Sauerland with a fitted BigBox Sport.05_2015 019

Test the new Vespa exhaust now:

Would you like to know, what happens if we fit the Bigbox Sport to your engine? Send us a date inquiry:

pruefstand@scooter-center.com
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Vespa touring exhaust BGM PRO BigBox TOURING Vespa 200cc

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New Vespa touring exhaust

We received the first production pattern of the BigBox Touring for 200cc Vespa PX engines today.

Assessing looks and fit are part of a normal sample exam. And so are test runs on our Scooter Center P4 dynamometer.

We already mentioned in previous entries relating to this Vespa exhaust, that the BigBox Touring has a drastically smaller U-bend than the BigBox Sport, its larger sister.

BigBox P200_2

The missing black, heat-resistant cover layer makes the BigBox Touring look somewhat naked. We also attach significance to closely assessing all the joints without the cover layer, though.

BigBox P200_3

Test assembly on a Vespa Sprint with a 200cc engine

One of the first parts of the exam was the assembly in a Vespa VLB (Sprint). Usually space issues arise, when fitted in combination with a 200cc PX-engine. Especially around the centre stand, in particular in the “U’s” and the laps for the stand springs. Depending on the assembly of the exhaust, stand feed rubbers might collide with the U-bend.

We especially focused on these narrow spaces to see whether everything fits. The BigBox fits even to vehicles with a two-spring-system at the centre stand, which has only be introduced to the German market. The stand feed rubbers have a save distance to the hot U-bend.

BigBox P200_4

Just as its larger sister the BigBox Touring comes with a solid clamping and additional holders for exhaust springs.

You want to play it safe? Our retaining plate incl. exhaust springs perfectly matches your BigBox.

BGM101HMSR(1)

Performance measurement Vespa exhaust

Once we agree with the looks, processing and fitting we continue with performance measurements.

First “testing victim” is a cast iron Polini with 207cc, SI24 carburetor in a standard Vespa PX200 engine.

bigbox touring 200

Early torque for day to day use and touring

When developing the BigBox Touring we focused on having the possible torque available early and that there is a high amount of pressure in the exhaust with low revs.

The earlier and more homogeneous torque is provided by the engine, the nicer is a day to day drive. Our cast iron test engine by Polini with a BigBox touring reaches more than 18Nm at 3900rpm. Translated to the 4th gear this means smooth cruising at 50km/h with a very good potential to accelerate up to the final revs.

Increased transmission possible

Depending on the engine you fit the BigBox Touring on, an increased primary transmission can be used reasonably to go easy on revs while retaining the same cruising speed. Increasing transmission is easiest when using a clutch sprocket. The BGM clutch sprocket for Cosa clutches or a sustainable solution like our BGM Superstrong clutch are very fitting examples. An increased transmission may increase the top speed by 5km/h at same revs.

BGM8099D

Let’s test – BigBox Touring is waiting for you!

You want to know what the Vespa Touring exhaust BGM PRO BigBox Touring can do to your personal engine? Just send us a date inquiry to

pruefstand@scooter-center.com

Our test pattern is waiting for you on our dynamometer.

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vespa auspuff anlagen bigbox bgm

Vespa exhaust bgm bigbox available for PX150 & T5

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BigBox for Vespa PX125 and Vespa T5 available again

BigBox for Vespa PX125 and Vespa T5 available again

The long-awaited exhaust Vespa bgm PRO BigBox are for Vespa PX80, PX125, PX150 (BGM1010) and for Vespa T5 (BGM1012) available again.

long-awaited exhaust Vespa bgm PRO BigBox

After a final quality check THE tuning exhaust for Vespa where carefully packaged in the bgm PRO boxes and prepared for the world farther shipping.

THE tuning exhaust for Vespa

Order here your Vespa bgm tuning exhaust:

Exhaust bgm PRO BigBox Vespa PX80, PX125, PX150 Artikelnummer: BGM1010

Exhaust bgm PRO BigBox Vespa T5 125cc (VNX5T) Artikelnummer: BGM1012

 

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