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Sport exhaust systems
Performance exhaust systems and tailpipes by Fox and Remus: over 5,400 stainless steel references, from the rear silencer to the full exhaust system, with model-specific welding and mountings.
Filter by make and model to see the systems that suit your car. For motorbikes, see motorcycle exhausts.
What a performance exhaust actually changes
A performance exhaust works on two things: sound and back pressure. A larger bore and a less restrictive silencer let gas out more easily, which can free up a few horsepower at the top of the rev range. The real gain is modest if the rest of the engine is standard: anyone chasing figures needs intake and engine management alongside it.
The change you will notice is the note. And it is worth being straight about this: the difference between a well chosen exhaust and a droning one is the silencer, not the bore.
Rear silencer or full system
- Rear silencer. Replaces the last section only. The simplest and most reversible fit, and the cheapest way to change the sound.
- Centre section. Adds the middle pipe. Usually paired with the same maker's silencer so the whole thing is tuned together.
- Full system. From the manifold or the catalytic converter to the tailpipe. This is where the real flow gains are, and also the most involved fitting and approval.
- Tailpipes only. Change the look of the exit without touching sound or flow.
Type approval
This is the part that causes trouble afterwards. An exhaust with European marking and its paperwork can be fitted while keeping the vehicle compliant; one without approval is for closed-circuit use. Check which certification the listing includes before buying, and keep the certificate, because you will be asked for it at inspection.
Pair it with intake
If the goal is performance rather than sound alone, an exhaust does more alongside cold air intake kits or replacement filters.
Frequently asked questions
How much power will a performance exhaust add?
On a standard engine with only the rear silencer changed, the gain is marginal and almost always less than advertised. A full system on a well managed turbo engine does contribute, but the exhaust on its own works no miracles.
Is a performance exhaust road legal?
Yes, if it holds approval and you keep the documentation. Without approval it is track equipment. Check the certification on the listing before buying.
Will it be too loud?
That depends on the silencer and the engine. Makers usually state the sound level; a four cylinder diesel and a straight six petrol do not sound alike on the same system.
Does the ECU need remapping?
Not for a rear silencer. For a full system that removes significant restriction, engine management helps you make use of the change.