Decibel Devil Exhaust Silencer
Decibel Devil Exhaust Silencer Measurements

Decibel Devil Exhaust Silencer - Universal

Brand: Decibel Devil
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The Decibel Devil Exhaust Silencer is the perfect quick-fitting solution for reducing exhaust noise levels at the race track.

Fits both single and twin exit back boxes between 2-5” diameter. Simply clamp the Decibel Devil to the exhaust backbox in a matter of minutes to get the green light to go racing.

With all UK and European race circuits complying with the strict noise regulations (as little as 89dB), noisy cars are no longer tolerated. The decibel devil is a must have for avid track racers or track day enthusiasts as there will not be a more disappointing time than the car failing a race circuit noise test.

8 exhaust tail pipe sizes available, with 2 slim versions that is suited to both Porsche & an aftermarket exhaust systems. The slim versions feature a 44.45mm/1.75" perforated tube compared to the standard 69.85mm/2.75", allowing additional clearance within the exhaust back box.

On average, the Decibel Devil reduces exhaust noise level by 5dB, simply clamp the Decibel Devil onto the back box and it's job done.

Decibel Devil Exhaust Silencer Specifications (see second image for reference):

  • 2" Tailpipe - A=160mm, B=76mm, C=51mm, D=45mm
  • 2.5" Tailpipe - A=160mm, B=76mm, C=63.5mm, D=51mm
  • 3" Tailpipe - A=160mm, B=76mm, C=76mm, D=63.5mm
  • 3.5" Tailpipe - A=160mm, B=76mm, C=90mm, D=63.5mm
  • 4" Tailpipe - A=160mm, B=70mm, C=102mm, D=76mm
  • 5" Tailpipe - A=130mm, B=30mm, C=127mm, D=102mm

A=Overall Length, B=Minimum Clamping Length, C=Exhaust Clamping Diameter, D=Decibel Diameter

Popular UK & European track dB limits:

  • Andvoor - 92dB
  • Anglesey - 105db/95dB
  • Bedford Autodrome - 100dB/102dB
  • Brands Hatch - 102dB/98dB
  • Cadwell Park - 105dB
  • Castle Combe - 100dB
  • Croft - 88dB
  • Croix-en-ternois - 105dB
  • Donnington Park - 110dB/98dB
  • Goodwood - 105dB/98dB
  • Kirkistown - 98dB
  • Knockhill - 105dB
  • Llandow - 105dB
  • Lyden Hill - 105dB
  • Mallory Park - 105dB
  • Mondello Park - 105dB
  • Nurburgring - 95dB
  • Oulton Park - 105dB
  • Pembrey - 105dB
  • Rockingham - 105dB
  • Silverstone - 105dB
  • Snetterton - 105dB
  • Spa - 105dB
  • Teeside Autodrome - 105dB
  • Thruxton - 90dB

note: depending on the style of exhaust system and tailpipe design, some modifications may be necessary.

Here you will find all the information you need to know about the delivery of your purchase.

At Rival Motorsport, we pride ourselves on our efficient delivery service. If your item is in stock with us, it can arrive as fast as the next day. However, please note that each product and brand may differ in terms of stock availability, and stock statuses shown on the product page may not always reflect real-time availability.

In the event that you are in a rush for your product, we advise that you call us. Not all stock is located in the same warehouse, and we are reliant on third-party suppliers. Our team can help you identify the quickest way to get your item.

Please be aware that orders can be delayed due to factors beyond our control. From couriers to customs, we cannot always predict or prevent delays. In these cases, we are not liable for any inconvenience caused.

For smaller items, we use Royal Mail First or Second Class, depending on the item. For larger items or items of higher value, we use courier services, typically DPD. You will receive a tracking number and a one-hour time slot for your delivery.

We have established special relationships with brands from around the world, as well as in the UK. This means that even if the item you are looking for is out of stock, we will have priority access to the production queue for new items. In fact, there is a high chance that you will not find the item you need anywhere else more quickly. Our dedicated team works tirelessly to source the products you require and will always strive to get them to you as soon as possible.

Please note that we reserve the right to cancel an order if the items/delivery costs have been calculated incorrectly by our checkout system. In such cases, we will give customers the option to cover the difference if they still want the goods.

Thank you for choosing Rival Motorsport. We hope that this information has been helpful. If you have any further questions, please do not hesitate to contact us.

At Rival Motorsport Ltd, we make sure our parts match your vehicle by double-checking with the latest data from manufacturers. Sometimes, though rare, there might be small differences. So, it's smart to double-check compatibility when you get your parts. This helps avoid problems before you start fitting them.

Just so you know, if a part is marked or damaged from trying to fit it, we can't take it back. Also, we don't cover labour costs, compensation, or other expenses.

Thanks for understanding and choosing Rival Motorsport Ltd.

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