You have already decided to go with LPG. Now you are sitting in front of the computer, reading forums, watching YouTube videos, and everyone swears by a different system. One is loyal to BRC, another has been driving a Lovato for twenty years and says it is all the same, a third sends you a screenshot from some Polish forum. The question is always the same: which system should I get? Let us cut to the chase. This is a job Auto Gas Gaga has been doing since 1996. We install and service all the major systems every day, and we know how they behave after one year, five years, and ten years. Sit down, here is an honest ranking from the workshop.
Systems we install and systems we only service
Six systems are taken seriously in BiH: Polish STAG and LPG-tech, plus Italian Zavoli, Lovato, Landi Renzo, and BRC. These are the systems we install, which means we stand behind every installation, we have the diagnostic tools, the maps, and the history of how they perform on different engines.
There are a few other systems on the market that you will come across, especially on imports from Western Europe (KME, Romano, Atiker, AEB, and similar). We service and tune those when somebody shows up with one already installed, but we do not install them ourselves. The reason is simple: we stand behind what we put on a car. Some of those systems have not shown consistent, predictable quality over the years we have worked on them, and for others there simply is no proper distribution in the region. Parts take too long, maps are not aligned, and the problem lands on the car owner a year or two later. If your system is already installed, come to us and we will get it running properly, map it, and keep an eye on it. But when you are choosing what to put on your car, we choose from the six above.
What actually decides the system for your car
Before we say a word about brands, these are the things we look at in the workshop. The marketing around LPG systems is loud, so let us go through what actually affects how the system will run five years from now.
Engine compatibility is number one. Older naturally aspirated petrols with indirect injection will swallow anything. Modern turbo engines with direct injection (TSI, TFSI, GDI) demand precise injection control and advanced software, because the margin for error is small. For a TSI or TFSI you do not pick a system that was designed for a Yugo from 1995.
ECU software quality is the brain of the whole operation. The reducer and the injectors can be excellent, but if the control unit does not know how to manage the system properly, you will drive around stuttering. This is where STAG and LPG-tech have a clear advantage at the sequential level. BRC has serious software. Italian houses like Lovato and Landi Renzo have usable software, but it is generally a step behind the Poles.
Injector quality is the biggest wear item in the system. Good injectors go 150,000 km without issues. Bad ones start leaking and causing rough hot starts after 60,000 km. Quality varies even within the same brand, which is why we look at the injector generation we have actually worked on in the workshop, not the catalogue page.
Reducer quality. Tomasetto is an industry-standard supplier of reducers (Alice, Artic) for many systems across different brands. If you talked to a STAG, LPG-tech, Zavoli, or Lovato owner, there is a very good chance they have a Tomasetto reducer under the hood. That is a good thing because parts are available everywhere.
Service network and parts availability. People forget about this while everything is new and working. Three years later, when you need a pressure sensor or a filter, you want a brand that does not take three weeks to ship from abroad.
Ranking the six brands: how it actually stands
Now for the important part. This is our first-hand ranking, for cars driven in BiH, at our fuel prices, with our distributors, and our mechanics.
1. STAG (Poland): number one, best quality-to-price ratio
If you ask us honestly, STAG is currently the best choice on the market. Polish engineering, outstanding software (Q-Box, Q-Max, Q-Next generations), controllers that allow precise map control, and excellent diagnostic tools that we use every day. It particularly shines on modern turbo engines, including TSI and TFSI from the VAG family, where precise injection means the difference between stuttering and perfectly smooth running.
What puts it in first place: top-tier quality at a price lower than Italian premium brands. You are not paying for the name, you are paying for what actually works under the hood. Parts are available, the market for Polish components in BiH is well developed, and over the past five or six years STAG has become the first choice for every serious workshop in Central and Eastern Europe.
For most customers who walk into our shop, the answer starts with STAG, and we only have a reason to talk about something else if a specific situation calls for it.
2. LPG-tech (Poland): a close second, outstanding price
The second Polish system that has positively surprised us over the past few years. LPG-tech delivers very good quality at a price that is even more accessible than STAG. The software is solid, mapping is predictable, injectors and reducers hold up as they should.
The gap between STAG and LPG-tech is not huge on a typical petrol engine from the 2010s. If your budget is tight, LPG-tech gives you the majority of what STAG offers at a noticeably lower price. For owners who want an honest LPG system without paying for a name, this is the first pick.
Where STAG still leads: on the most modern turbo engines with the toughest maps (certain TSI EA888 generations, some new BMW B-series petrols), STAG's software is a step ahead. On everything that is multipoint and not too fussy, LPG-tech does the job excellently.
3. Zavoli (Italy): the best Italian system right now
Among Italian systems, Zavoli is currently the strongest. This will surprise some people who still think of Zavoli as a "mid-range" brand, but over the past five years the Italians at Zavoli have done serious work on software and components. Today's Zavoli systems are reliable, well-mapped, and reasonably priced.
If you want an Italian installation and do not want a Polish system, Zavoli goes first. It works especially well on simpler multipoint petrols, and in its more modern variants it handles TSI and TFSI just fine, provided the mechanic knows his job.
4. Lovato (Italy): proven, but lagging behind in software
Lovato is a proven story. The distributor network across the Balkans is wide, parts are found everywhere, and the system is very forgiving when installed on older vehicles. Generations of drivers in BiH run Lovato, and for good reason: it is a system that simply works.
Honestly: at the sequential level, Lovato's software and ECU are a step behind STAG, LPG-tech, and modern Zavoli. Mapping is not as precise, diagnostics have fewer options, and on more demanding modern engines you notice the difference in smooth running. For cars from the 2000s, Lovato still delivers reliable long-term value. For modern turbo engines, there are better choices.
5. Landi Renzo (Italy): solid, but also lagging in software
Landi Renzo and Lovato sit in the same camp. Large global network, recognizable name, solid all-around system that you often see on fleet vehicles. Components are decent, reducers done properly.
The downside is the same as with Lovato: at the sequential level, the software and mapping lag behind the Polish competition. Older Landi Renzo systems went through a phase with injector problems, which damaged the brand's reputation among mechanics. Modern systems are noticeably tougher, but if you are choosing between Landi Renzo and Zavoli on the Italian side, Zavoli currently gives more value.
6. BRC (Italy): top-shelf quality, but the price does not match the difference
BRC is an interesting case. The components are of the highest quality, the brand is often used as an OEM supplier for factory installations at certain car manufacturers, and the system has long-term reliability that is legendary in the industry. On paper, this sounds like number one.
The problem is that in real-world use BRC does not deliver so much more than STAG or a modern Zavoli to justify the premium price on our market. You are paying for the brand, paying for OEM heritage, paying for marketing, but what ends up under the hood is not dramatically better than what STAG delivers for significantly less money. If you own a premium vehicle and the name carries weight for you, or you like Italian tradition, BRC is not a wrong choice. But when we look at where the most value goes per mark spent, BRC does not sit at the top of that list today.
Which system for which engine
This is the matrix we use in the workshop, a starting point for the conversation.
- Older multipoint petrol engines (MPI), say Opel Z engines, Fiat 1.4, VW 1.6 8V from the 2000s, Peugeot 1.6, Renault 1.6 16V. Anything from the six brands works here. LPG-tech for the best budget, STAG if you want precision in all conditions, Zavoli if you specifically want Italian.
- Modern turbo petrols (TSI, TFSI, some newer turbo Renault and Ford). STAG is the first choice because of the software, LPG-tech as a sensible second if budget dictates, Zavoli as the Italian alternative when everything runs through Tomasetto. Have a look at our guide to maintaining TSI and TFSI engines for context on why these engines are special.
- Direct injection (GDI, certain TFSI with direct injection). Specialist territory. Not every installation is advisable; some engines are better left on petrol, while some run beautifully on a combined system. Here the pre-installation consultation is not a formality but the substance. A conversation in the workshop, not a decision from a YouTube video.
- Older carbureted and single-point cars. They can take LPG, but those are vacuum systems that belong in a separate category. Lovato has a long tradition in that segment, and Auto Gas Gaga has been doing those installations for decades and still does.
If you drive a Volkswagen with a TSI engine, it is worth checking out our Volkswagen service page in Banja Luka, because the combination of VAG engine specifics and LPG installation has a few details we like to explain in person.
Installation matters more than the brand
This is the truth a good mechanic owes you. A top-shelf BRC system installed badly gives worse results than a properly installed LPG-tech. The brand gives you the potential; the installation turns that potential into a result or into a problem.
What "installed properly" means:
- Correct injector sizing for your engine, not using the same set on every car
- Proper tank mounting with ventilation and a drain
- Accurate integration with the car's original ECU, no improvisation
- Comprehensive initial mapping on a test drive, not just "it started, it runs"
- Follow-up tuning after the first 500 km and again after 2,000 km, once the system has settled
- Driver education on proper operation, refueling, and basic checks
Auto Gas Gaga treats every installation as the start of a relationship, not the end of a job. Every installation gets follow-up sessions and check-ins, because LPG is not "fit and forget". More on regular maintenance in our article on what an LPG service covers at our shop.
What we recommend: an honest summary after 30 years
No margin talk:
- STAG is number one for most customers in BiH, especially for petrols from the 2010s onward. Best software, best precision, a price that is reasonable for what you get.
- LPG-tech is our second choice when the budget is tight or the engine is a simpler multipoint petrol. It delivers outstanding value for its price.
- Zavoli is our first Italian pick. If for any reason you do not want a Polish system, you stop here before Lovato and Landi Renzo.
- Lovato and Landi Renzo are honest choices for older vehicles from 2000 to 2010, or for owners who already have good experience with those brands. At the sequential level they lag behind in software compared to STAG, LPG-tech, and modern Zavoli.
- BRC is a good system, but in BiH it does not deliver enough more than STAG or Zavoli to justify the price difference. It only makes sense if the name carries special weight for you.
- For modern turbo direct-injection engines (certain TSI, TFSI, GDI) we always consult before installing. Sometimes the honest answer is "let us keep it on petrol", and that is genuine advice, not a refusal of work.
These recommendations can shift the moment you sit down in the workshop and we see your car, your driving, and what you plan to do with the car over the next five years. If you are still weighing whether LPG even pays off for you, check out our 2026 LPG payback guide.
How the conversation goes at our workshop
When you come to us in Banja Luka, we do not push a single system at you right away. The conversation starts with the car and with you.
We ask how much you drive per month, how much city versus highway, how often you drive with a full load, how long you plan to keep this car, what the budget looks like, and what matters most to you (cheap installation, the best software, the quietest running, the longest lifespan). Then we look at the engine: year, generation, naturally aspirated or turbo, multipoint or direct injection, condition of the spark plugs, lambda sensors, and compression.
From all of that we suggest a system that fits your specific situation, not the one that gives us the highest margin. We also explain what we would install on our own car in the same scenario, because that is the honest test of any recommendation. We write down the proposal, you sleep on it, and if you decide to go ahead, we book the appointment.
After installation we do the mapping, take it on a test drive, and stay involved until the system runs perfectly. Auto Gas Gaga installs, services, and tunes every major LPG system, so whenever you need extra help later, you come back to the same workshop that knows your car. Systems we do not install (KME, Romano, Atiker, AEB, and other less common ones) we also service and tune, but if you are still choosing what to put on your car, the advice stands: pick from the six systems above.
If you are still undecided, do not make the call from a forum. Stop by in Banja Luka or give us a call, bring the registration document, and let us talk about your specific car. We have been installing and servicing STAG, LPG-tech, Zavoli, Lovato, Landi Renzo, and BRC since 1996, and we will tell you honestly which one fits your combination of engine, driving, and budget. More about the installation itself on our LPG installation page in Banja Luka, and about regular maintenance after installation on the LPG service page.