Exhaust Talk: 03 | GPF Debate - What is a GPF/PPF Exhaust Particulate Filter - Improve Exhaust Sound

Returning to Cobra Sport's educational series Exhaust Talk, episode 3 takes a closer look at the GPF/PPF (petrol particulate filters) found on all modern day performance cars focusing on the technology, performance implications and the improvements a Cobra Sport exhaust can make to your driving enjoyment.
In this educational series we will be answering your questions on everything exhaust related from resonators, to sports catalysts, to what is a legal exhaust modification for your car.
Remember to leave a like and comment on which topics you would like us to cover next.
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With over 25 years in the performance exhaust industry, each Cobra Sport exhaust system is designed, manufactured and tested in Sheffield, the heart of the UK steel industry. Cobra Sport utilise TIG-welding techniques to ensure a flawless finish and quality that you can rely on.
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[@reddevil0074]

Nice to see my car in action

[@lockeddown7963]

I ordered your straight through 2.5'' exhaust for my swift sport zc33s from Australia... Very very happy quality is great, Just wondering if you do a gpf delete too?

[@Exhaustsounds]

Thank you for your positive feedback on your Swift Sport performance exhaust. GPF's are only found on European variants, fortunately your car does not feature this restrictive filter from the factory!

[@fic6500]

Does a engine need remaping after changing anytbing on exoust system?

[@Exhaustsounds]

The only time a re-map is needed is if you were to upgrade the front pipes. Fitting a cat back, GPF back or rear section exhaust will not need a re-map.

[@tdr-458]

What about doing 'Sport GPF' Downpipes? Essentially either reducing the size of the GPF, or the shape/design to allow more flow without compromising legality?

[@Exhaustsounds]

That would be our ideal solution and we're keeping a close eye on technological advancements in this area.

[@tdr-458]

Looks like one manufacture have released one for the Mk4 Focus ST with positive reviews. I'm looking into whats possible with my Cupra and wondered if you needed a test vehicle

[@majedmiah]

​@@tdr-458Formentor by any chance?

[@tdr-458]

@@majedmiah Leon Cupra 3.5 with the GPF in. Companies are really missing out on income by not releasing these sooner (I appreciate there's a lot of approvals that need to be done) - GPF models have been on the road for 6 years now and its an untapped market.

[@andrewhatton1606]

We’re about to get rid of our epa. 🇺🇸🇺🇸🇺🇸

[@frestless3288]

If my car has the GPF is it worth to remove the muffler? Or I won’t feel any sound difference?

[@Exhaustsounds]

There is a definite difference without the muffler, have a listen to the sound clips & data on our product listings - cobrasport.com/collections/bmw-1-series-exhaust/model_m135i-f40-2019

[@danielflynn2987]

Sounds awesome, does Cobra Sport do a exhaust for my Mini Clubman JCW LCI (72 Plate)

[@Exhaustsounds]

Only the downpipe as a direct fit setup. We could custom build a bespoke system for you directly to the car if you want to contact the team at our HQ in Sheffield - cobrasport.com/pages/custom-performance-exhausts

[@andreaalligri901]

what year is the car? great video

[@Exhaustsounds]

Thank you for your positive feedback! This car is a 2022 model year.

[@kemchiag7241]

In a nutshell should you avoid a car with gpf or is it advisable to buy a car with one

[@Exhaustsounds]

All modern petrol cars have a GPF fitted in the UK/EU so it is unavoidable if you want to purchase a newer model, we saw the first GPFs in around 2019.

[@fas564]

Does removing the GPF activate the check engine light?

[@Exhaustsounds]

Yes, as with a sports catalyst, the difference in flow will be picked up by the sensors.

[@Ireland103]

great info....This is available for the for the 128ti too?

[@Exhaustsounds]

Could you drop an email to [e-mail] with your contact details and we can discuss fitting the quad system to your 128ti.

[@EastWood2004]

Gpf is not mandatory in Australia and North America. Only Europe mandates this and VW exports gpf equipped cars to Australia. I am interested in the gpf delete but it will void the warranty.

[@Exhaustsounds]

Hi, Yes this would normally void warranty, most dealerships don't mind you having a GPF back system but i would suggest checking with your dealership first, as it is a modification and can effect the warranty but also removing the GPF is some states like the UK is illegal and would not pass an MOT as it removes an emission device.

[@TheVesterRaev]

Do you sell a system for a cooper s f56 that is legal in Europe?

[@Exhaustsounds]

We offer a range of systems for the Cooper S F56 including a Valved Cat Back system which retains the factory catalyst, feel free to check this out > cobrasport.com/collections/mini-mk3-exhaust/model_cooper-s-f56-2014-18

[@Reddevilhardbass]

Hi! Why I am not able to find ppf back option for F20 LCI M140ix? Or its not possible? Thank you for your reply!

[@Exhaustsounds]

Hi Stefan, we do offer Cat Back options but not the PPF-Back option, I'm afraid. Feel free to check out our cat back system here > cobrasport.com/collections/bmw-1-series-exhaust/products/bmw-m140i-cat-back-performance-exhaust