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News & advice

26 Sep 2026 8 min read

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...

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26 Sep 2026 10 min read

Noise 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.

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28 Jul 2026 1 min read

BMW 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,...

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9 Mar 2026 4 min read

PORSCHE 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...

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19 Feb 2026 3 min read

MERCEDES 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...

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19 Feb 2026 3 min read

VW 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...

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19 Feb 2026 4 min read

BMW 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...

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19 Feb 2026 3 min read

AUDI 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...

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19 Feb 2026 3 min read

AUDI 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...

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19 Feb 2026 3 min read

TIG 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...

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19 Feb 2026 3 min read

Fuel 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...

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19 Feb 2026 3 min read

Exhaust 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...

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19 Feb 2026 4 min read

ROGMOTORSPORT: who are we?!

RogMotorsport designs high-performance exhaust systems for enthusiasts who want to go further than an off-the-shelf product.

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18 Feb 2026 5 min read

Heat 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...

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18 Feb 2026 5 min read

System 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,...

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18 Feb 2026 5 min read

The 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...

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18 Feb 2026 5 min read

Weight 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...

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18 Feb 2026 5 min read

Stage 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....

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18 Feb 2026 5 min read

Will 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...

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18 Feb 2026 4 min read

Equal 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...

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15 Apr 2025 5 min read

Sports 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...

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15 Apr 2025 4 min read

How 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...

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15 Apr 2025 4 min read

Tuning 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...

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15 Apr 2025 5 min read

Why 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...

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15 Apr 2025 3 min read

Stainless 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....

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15 Apr 2025 5 min read

Why 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...

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15 Apr 2025 5 min read

Decatting 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.

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15 Apr 2025 5 min read

How 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....

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15 Apr 2025 6 min read

Pop & 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...

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15 Apr 2025 5 min read

How 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,...

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15 Apr 2025 5 min read

Full 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...

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15 Apr 2025 5 min read

Remote-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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