Cobra Sport Ford Focus RS (MK3) Venom Box Delete Race Cat Back Performance Exhaust
SKU: 68538004443

Cobra Sport Ford Focus RS (MK3) Venom Box Delete Race Cat Back Performance Exhaust

Sale price$527.59 Regular price$586.21
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Description

Cobra Sport Ford Focus RS (MK3) Venom Box Delete Race Cat Back Performance ExhaustPlease note: Valved systems out of stock until August 2020. This product is designed without a rear box and will be extremely loud. Cobra Sport performance exhausts enhance the sound, looks and quality of your vehicle giving you the ultimate driving experience. Our sports exhausts range is fully guaranteed to give you assurance of our quality. This Mk3 Focus RS 2. 3L EcoBoost 350PS performance exhaust system is made in 3" 76. 2mm mandrel bent

Please note: Valved systems out of stock until August 2020. This product is designed without a rear box and will be extremely loud.

Cobra Sport performance exhausts enhance the sound, looks and quality of your vehicle giving you the ultimate driving experience. Our sports exhausts range is fully guaranteed to give you assurance of our quality.

This Mk3 Focus RS 2.3L EcoBoost 350PS performance exhaust system is made in 3"/76.2mm mandrel bent stainless steel pipework and fits from the catalytic converter section backwards (Cat-back) these exhausts replace the centre and rear sections.

This sports exhaust is part of the Cobra Sport Venom range and is extremely loud. This exhaust is sold for non road use only and will exceed all legal noise regulations.

All relevant fittings and gaskets are supplied.

Please Note:

The 'Valved' exhaust retains the use of exhaust valves. When switching drive modes (e.g. Eco to Race mode) your exhaust tone will continue to swop from quieter to louder tones as before.

The 'Non-Valved' exhaust removes the use of exhaust valves. When switching drive modes (e.g. Eco to Race mode) your exhaust tone will not change from quieter to louder as before. Using a Non-Valved exhaust will not harm the running of your vehicle, you will simply not have exhaust sound options, however the Cobra Sport exhaust has been designed with this in mind.

Some of the fitted exhaust images may show alternative parts.

Press Release

The Cobra Sport development team have created a full range of exhaust systems to take the RS to the next level through precision design and technology, allowing for increases in power and creating a sound track worthy of the future classic RS. The mandrel bent T304 Stainless Steel pipework has been designed to give the engine maximum room to breathe. The new Cobra Sport systems produce a much deeper exhaust tone than standard which becomes highly aggressive under load to produce a pitch perfect soundtrack along with the trademark gargles, crackles and pops expected from the Focus RS.

The Cobra Sport systems deliver a significant weight saving over standard. Testing of the non resonated turbo back system with de-cat resulted in a 13% reduction in weight over the OE system's 24.3kg. On offer are a full range of configuration options including a cat-back exhaust system along with de-cat & sports cat front sections to form a full turbo back replacement. Taking development for the RS a step further, Cobra Sport have created a Venom exhaust system (with resonated centre) which produces a completely unique sound track. This system matched with the OE standard catalyst recorded the highest sound levels in our tests registering 101.5db (+22.8db) on the 4,000rpm static test.

The Cobra Sport development team have produced both valved and non valved sports exhausts for the Focus RS. The valved exhaust retains the use of O/E exhaust valves, so when switching drive modes (e.g. Eco to Race mode) the exhaust tone will continue to change from quieter to louder tones as before. The non-valved option removes the O/E exhaust valves altogether, and thus removes the drivers option of having various exhaust tones at the press of a button, however the non-valved Cobra Sport exhaust has been designed with this in mind.

Matt Thomas, Sales Manager at Cobra Sport says "The many system configuration have a unique blend of sound and tone characteristics. The most dynamic upgrade was the full non resonated turbo back with de-cat which completely altered the sound of the car.

"At Idle this system only increased the decibel level by +12.5db but once under load the system comes to life, producing a pitch perfect tone at a level of 100db (+21.3db) on the 4,000 rpm sound test to match the aggressive RS styling. The dual tailpipes sit neatly with the stylish rear diffuser. We were keen to make the most of the dual exit design and are excited to offer a choice of bold 4.5" (114.5mm) highly polished slash cut stainless steel tailpipes."

Media

Example of Ford Focus RS (MK3) sports exhaust (Venom cat back exhaust)

Example of Ford Focus RS (MK3) sports exhaust (Venom cat back exhaust)

Interior sound example of Ford Focus RS (MK3) sports exhaust (Venom cat back exhaust).

Cobra Sport Exhausts Ford promotional video.

Shipping Notes
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 68538004443

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Verified Purchase
Do NOT have shipped without the extra box
Battle Creek, US
★★★★★ 5
Good for the price point
Color: Olive 09, Size: Medium
I bought this as a Christmas gift for one of my teen boys. I originally bought this shirt for our 16 year old but when I received it, I quickly realized the quality would be off putting to him, so I gifted it to one of my other boys that is not a material/brand snob. The color is spot on with the description. Our son loves the shirt’s thin knit and softness when wearing. The quality could be better but it’s good for the price point. Fits as described and is holding up to our fifteen year old nicely. Would buy again.
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Reviewed in the United States on February 17, 2026
F
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flredsox
Cuba, US
★★★★★ 5
Perfect Fit, Perfect Material
Color: Lt Blue 09, Size: Large
Large was a perfect fit for me. Chest, shoulders and waste perfect. Arms surprisingly long as I have long arms (35”). I had to pull up the left sleeve to get out of my grip. Material was very soft, light and stretchy. Perfect to keep arms out of the sun and still cool enough on a 94 degree here in Florida. For those w a belly, this might not work. I have a flat stomach some love handles and somewhat squarish body type (not a V..I’m 71) so perfect belly space for me. I’m 6’, 185. The other issue for me is my shoulder arthritis and getting a sweaty shirt off, no problem. The shirt wicked away the water and the shirt was stretchy enough to get it off easily. I am going to wash it and make sure it holds it shape then if positive I will buy a couple more. I’ve tried several shirts, this is great!
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Reviewed in the United States on May 24, 2026
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Amazon Customer
Cuba, US
★★★★★ 4
Nice Bus casual Fit
Color: Black 09, Size: X-Large
I love the feel of the shirt. I got an XL and it's a little big. I'm 6' 2" about 230 I'm gonna order a large to compare. Over I like the shirt.
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Reviewed in the United States on January 24, 2026
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Juan R.
Boise, US
★★★★★ 5
Gran precio y calidad
Color: Black 09, Size: Medium
Muy buen diseño en el cuello interno y muy buena calidad.
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Reviewed in the United States on May 12, 2026
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landon
Draper, US
★★★★★ 5
Nice for the price
Color: Navy 09, Size: Large
Ok for the price doesn’t fit the body as well as I thought it would
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Reviewed in the United States on April 24, 2026

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