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The Rog Journal
Compatibility, real gains, sound: what you need to know before choosing.
- Best valved exhaust for the Audi RS3 8YPrices and options taken from the Rog product page on 6 November 2026. The short answer. For an Audi RS3 8Y, the most complete valved exhaust...
- Best valved exhaust for the Mercedes-AMG A45 / A45 S W177Prices and options taken from the Rog product page on 6 November 2026. The short answer. For a Mercedes-AMG A45 or A45 S W177, the most...
- Best valved exhaust for the BMW M2 G87Prices and options taken from the Rog product page on 6 November 2026. The short answer. For a BMW M2 G87, the most complete valved exhaust...
- Exhaust rules: what changes in 2026 and 2027 (Euro 7, noise cameras, MOT)Every date on this page comes from an official text or a manufacturer press release, read on 02/11/2026, and links to its source. If a date...
- Changing your exhaust: what inspections and approvals cost in 9 countriesFees collected on 31/10/2026 from the official texts and from the websites of each country's authorities and testing bodies; every amount links to its source. The...
- Is a cat-back exhaust legal in Ireland? What the NCT checks.Updated 30 October 2026. A cat-back exhaust replaces only the part of the system behind the catalytic converter: your factory catalytic converter, oxygen sensors and on-board...
- Sports exhaust (sportsummuti) in Estonia: what the tehnoülevaatus checks.Updated 30 October 2026. A Rog valved exhaust gives you the sound you choose, and a car that stays discreet when it matters. Valves open, the...
- Sports exhaust in Latvia: tehniskā apskate and the CSDD noise limit.Updated 30 October 2026. A Rog valved exhaust gives you the sound you choose, and a car that stays discreet when it matters. Valves open, the...
- Akrapovič Audi RS3 8Y: price, sound and alternativeAkrapovič specifications taken on 14 October 2026 from the brand's official website, which publishes no prices; public prices taken the same day from the official Akrapovič...
- Akrapovič Golf 8 R: price, sound and alternativeAkrapovič specifications taken on 14 October 2026 from the brand's official website, which publishes no prices; sources at the end of the article. The short answer....
- Akrapovič BMW M2 G87: price, sound and alternativeAkrapovič specifications taken on 14 October 2026 from the brand's official website, which publishes no prices; public prices taken the same day from the official Akrapovič...
- Akrapovič BMW M3 G80 / M4 G82: price, sound and alternativeAkrapovič specifications taken on 14 October 2026 from the brand's official website, which publishes no prices; public prices taken the same day from the official Akrapovič...
- Akrapovič vs Rog: how to choose your exhaustAkrapovič specifications taken on 14 October 2026 from the brand's official website, which publishes no prices; public prices taken the same day from the official Akrapovič...
- Exhaust resonator delete: what it really changes.In short. A resonator delete means replacing the factory resonator or centre silencer with a straight pipe. The sound becomes a little louder and rawer; drone...
- Resonator vs muffler: centre silencer, rear silencer, what's the difference?In short. The silencer (muffler) lowers the volume of the sound; the resonator changes its tone by damping certain frequencies. On most cars, the “centre silencer”...
- Exhaust resonator: what does it do? Straight pipe or resonator, which sound to choose.In short. An exhaust resonator is a part fitted on the mid-pipe, between the catalytic converters and the rear silencer. It does not clean the exhaust...
- Valved exhaust price in 2026: how much should you budget?Information taken from our website on that date. In short. At Rog, the price of a valved exhaust depends on the car and is shown on...
- Custom stainless steel exhaust: how we make it for your car.In short. At Rog, every exhaust is made to order for your car, based on its VIN, in stainless steel or titanium. You choose the material,...
- Cat-back vs full exhaust vs OPF-back: what's the difference?In short. A cat-back exhaust replaces everything after the catalytic converter: mid-pipe, rear silencer and tips. An OPF-back system, also called GPF-back, starts after the particulate...
- Does a valved exhaust drone? Why our systems stay calm on the motorway.In short. No: a well-designed valved exhaust does not drone when cruising. With the valves closed, the gases flow through the whole rear silencer and the...
- Which is the best exhaust brand for your car? Our top 10 for 2026/27Transparency. This article is written by Rog (RogMotorsport), a French brand of valved exhaust systems made to order. We rank ourselves first, and we explain why...
- Fi Exhaust in France: prices, lead times and a custom alternative (BMW, McLaren, Lamborghini)The short answer. In France, Fi Exhaust is sold through specialist resellers: a large catalogue of valved systems for BMW M cars, supercars and prestige SUVs,...
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