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The noise level shown on your vehicle registration certificate (field U.1): how to read it, and the loudest production sports cars
Fields U.1 and U.2 of the vehicle registration certificate (V5C in the UK) explained, followed by the type-approved stationary noise...
Read the articleNoise cameras and car noise enforcement in Europe: a country-by-country update (2026)
Noise cameras, dB(A) thresholds, fines and roadworthiness noise checks: a sourced overview across 11 European countries, updated on 26/09/2026.
Read the articleBMW M3 G80 / M4 G82 exhaust system: freeing the S58 as it should have been
The S58 is the best M engine in BMW's history. The bespoke ROG system truly frees it: sound, power, valves,...
Read the articlePORSCHE 911 (991/992): the art of elevating the flat-six
The PORSCHE 911 is the sports car made flesh. Its flat-six is supposed to deliver a mechanical symphony you could...
Read the articleMERCEDES A45 AMG (W176/W177): waking the overpowered four-cylinder
The MERCEDES A45 AMG is a technological feat. Whether it is the M133 block (360/381 hp) or the newer M139...
Read the articleVW GOLF 7R / 8R: the perfect balance of daily driver and performance
The VW GOLF R (generations 7, 7.5 and 8) is the undisputed queen of versatility. Able to fetch the bread...
Read the articleBMW M2C-M3-M4 F8X: elevating the S55 with EQUAL LENGTH technology
The S55 engine (3.0L twin-turbo straight-six) is a legendary mechanical base, able to take serious tuning. And yet it suffers...
Read the articleAUDI RS3 (8V/8Y): freeing the 5-cylinder with no technical compromise
The AUDI RS3 is a living legend thanks to its 2.5 TFSI engine and its unique firing order (1-2-4-5-3). It...
Read the articleAUDI R8: freeing the V10 while taming the furnace
The AUDI R8 is one of the last naturally aspirated supercars. Its V10 is a work of art, but it...
Read the articleTIG WELDING and 3D scanning: craft meets technology
There are two schools in car tuning: mass production and precision engineering. At ROGMOTORSPORT we have picked our side. Building...
Read the articleFuel consumption: does a sports exhaust use more fuel?
It is a myth that refuses to die: fit a sports SYSTEM and your car becomes a fuel pit. In...
Read the articleExhaust and manufacturer warranty: what you need to know
It is the question that comes up on every build: "If I change my SYSTEM, do I lose my manufacturer's...
Read the articleROGMOTORSPORT: who are we?!
RogMotorsport designs high-performance exhaust systems for enthusiasts who want to go further than an off-the-shelf product.
Read the articleHeat insulation: why protecting your downpipe and manifold is vital
You have invested in a serious engine build, your map is spot on, and yet after a few hard sessions...
Read the articleSystem diameter: why "bigger" does not mean "more powerful"
In the folklore of car tuning there is an unwritten rule that seems set in stone: the wider the pipe,...
Read the articleThe drone phenomenon: how do you get rid of the unbearable resonances in your exhaust?
Picture the scene: you have just fitted your brand-new exhaust system. The first few accelerations are glorious, the sound hoarse...
Read the articleWeight saving: the hidden advantage of a performance exhaust
Car tuning tends to fixate on a single number: power. Everyone is chasing another 20, 30 or 50 horsepower to...
Read the articleStage 2: why is the downpipe the essential part of your build?
You have taken the Stage 1 plunge. Your car is sharper, the torque gain is obvious, but you want more....
Read the articleWill my sports exhaust pass vehicle inspection? The complete guide
For any car enthusiast, the vehicle inspection date creeping closer usually means stress. You have invested in a nobler sound...
Read the articleEqual Length technology: why does your engine finally sound "right"?
You own a renowned performance car, yet you have the frustrating feeling that the sound under acceleration lacks purity? It...
Read the articleSports exhaust: 10 mistakes to avoid at all costs | Rog practical guide
Fitting a sports exhaust is one of the best ways to transform your car, in performance as much as in...
Read the articleHow to choose a sports exhaust for your engine type: turbo, naturally aspirated, supercharged, hybrid…
Not every engine reacts the same way to a sports exhaust system. Choosing an exhaust without taking your engine into...
Read the articleTuning your car without breaking the bank: is the exhaust the best value-for-money mod?
Tuning a car is a passion shared by a great many drivers. The goal is usually twofold: gain performance and...
Read the articleWhy you cannot hear your engine: the truth about your exhaust | Rog
If you are a car enthusiast, you know how much your engine's sound matters to the pleasure of driving. Yet...
Read the articleStainless vs titanium sports exhaust: sound, performance & weight | Rog
When you set out to improve a car's performance and sound, one of the essential choices is the exhaust material....
Read the articleWhy fit a decat system? Benefits, drawbacks and the rules
For a great many car enthusiasts, driving goes far beyond the numbers the manufacturer quotes. The real pleasure lies in...
Read the articleDecatting your car: legal or not? What are the risks?
Is removing your car's catalytic converter legal? Risks, vehicle inspection, penalties and alternatives: what to know before touching the catalyst.
Read the articleHow to pass vehicle inspection with a modified exhaust
You have fitted a sports exhaust to your car: stainless steel system, decat pipe, sport catalytic converter or remote-controlled valves....
Read the articlePop & Bang: how it works, and is it risky?
If you love performance cars, you will have heard of Pop & Bang . This spectacular sound effect, a volley...
Read the articleHow exhaust gases influence the engine map
When people talk about engine tuning, they usually think of remaps, horsepower and torque curves. But there is one component,...
Read the articleFull system, mid-pipe, decat pipe, sports cat… what to change for which result?
Want to improve your car's performance, sound or looks? A sports exhaust is often the first modification people consider… but...
Read the articleRemote-controlled valved exhausts: how they work and why they change everything
You love the sound of an uncorked engine, but you do not want to wake the whole street every time...
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