Review: Tecno Bos Exhaust for Puch Mopeds

I have been thinking about adding a Tecno Bos exhaust on one of my new projects. As always, I love to ask experiences from other people before buying it. So I asked  the experiences of 20 owners through our instagram page. This page are the findings.

About the Tecno Bos exhaust

The Tecno bos exhaust is a pretty good, fancy looking and cheap exhaust. The performance of the Tecno Bos exhaust is better than the original exhaust. In general the conclusion is that this might be the best Puch Maxi exhaust given it’s low price of € 29,95.

Chrome Tecno Bos Exhaust by John P.
Chrome Tecno Bos Exhaust by John P. Mounted on a Puch Newport

In general, most of the people sharing their experiences said the same: it’s a great exhaust for 50cc to 70cc Puch mopeds (it fits almost every setup!). Wether you prefer the stock cylinder, an Airsal cilinder, PSR, Polini, … it’s must likely a very good choice.

About the performance of the Tecno Bos exhaust

The performance is better than the original exhaust and can be compared with the RS Cigar. It has a great sound but also a great topspeed on flat roads (and downhill). The only ”minus” here is that the performance is not better when climbing hills.

The powerband sets in pretty late so in low range the difference is not incredible. However you can feel the powerband pretty good according to Tim and once you’re set off, the performance and speed is awesome. Another respondant told us that he even got an extra power of 5-7000 RPM. Sounds good!

Will you got more speed with the Tecno Bos Exhaust? 

Black Tecno Bos Exhaust on a blue puch maxi
Black Tecno Bos Exhaust by Kroonstagram

The extra speed entirely depends on the setup you are using. The general conclusion here is that this exhaust delivers more speed and power compared to the original exhaust. Max B. for example told us he got almost 15km/h extra topspeed with a 50cc cylinder.

Again, this depends on your setup. But I do believe that (just like with the RS Cigar exhaust), the Tecno Bos will give you 5 to 15km/h extra topspeed.

About the sound of the Tecno Bos Exhaust

The sound is great. The exhaust is louder than the standard exhaust and might attract more attention certainly when driving at higher speed.

According to Mathu S. this might even be one of the best sounding exhausts for Puch mopeds. But that’s up to you to decide with the following ‘soundcheck video’:

Soundcheck video:

Total Review Score

We asked the same 20 people to give us a score from 0/10. The lowest score was 7, the highest score was 10. The average review score for this exhaust is 8/10. 

There are of course better exhausts for what concerns performance, but they are in general a lot more expensive.

Plus points

Great sound
 Good performance
Cheap price
+ Good quality
No exhaust gasket ring

Minus points

 No big difference in low range (compared to the standard exhaust)
 The exhaust might touch the pedals. You might need to bow the exhaust a bit.

Where to buy a Tecno Bos Exhaust?

The price indicated on this page is from our preferred Puch partner. Our partner delivers both in Europe and the USA and are known for their fast delivery.

€ 29,95: Chrome Tecno Bos Exhaust . Buy Here
€ 29,95: Black Tecno Bos Exhaust. Buy Here

Some experiences of some owners:

The experience of Tim S.
It’s a great exhaust. I’s made for e.g. a 70cc cylinder. I have tested it on my 70cc Airsal and it runned great with a nice sound and lots of extra power. You do also feel the powerband very good.

The experience of Hauke S.
I would definitely give it a 9/10. It’s a super exhaust for 50cc sport cylinders. It has a very good acceleration and comes in well in the resonance range. 

The experience of Marbin C.
Compared to the standard exhaust, it gives you much more power. I have also tested  many Homoet exhausts but this one is the best given it’s price. 

Comment and share your experience!

Comment below and let our Puch community know which exhaust you are using with your experiences.

4 thoughts on “Tecno Bos Exhaust – Review

  1. I have the biturbo, makes a lovely sound, very loud and my airsal 70cc pulls like a train .

  2. I also have a Tecno Bos exhaust but he isn’t working very well! I have a 64 jet. My Puch Maxi S only has a topspeed of 30 km/h (with a 50cc Airsal).After the first test drive i tried to start my Puch again but it didn’t worked! Can anybody give me some advice?

  3. Ich habe den techno Boss angebaut statt des 22mm original auspuffs und das hat bei meinem Setup ca von 55 bis 80 85 gebracht. Mein Setup ist ein 6kanal und 14mm Bing mit einer 66 düse und einen 14mm ass .

Post your question, remark, here!