EXHAUST
BUYING GUIDE
An exhaust buying guide has been prepared due to the number of customers we see who have had a stainless steel exhaust fitted to their car by other companies only to find the system is unsuitable we have decided to put together this exhaust buying guide. As market leaders, we feel customers should have a better understanding of the pros and cons of exhaust systems to help you make an informed decision and prevent you paying twice to get the work done again.
Not all exhaust companies are producing shoddy quality work and supplying inferior products; however, to reduce your chances of being duped into believing what they say, we strongly recommend you do some due diligence by reading our exhaust buying guide. There are many factors to agree; what tube diameter, welds, silencers, and tubing will be used and check them after the work has been completed this is because some companies fit reduced diameter tubes because firstly its cheaper and easier to install but can reduce the sound and performance causing power loss, see our exhaust buying guide
Many factors will determine an excellent stainless steel exhaust system. One of the most crucial components is the silencer, also known as a muffler. Anyone can make a claim however the essential factor is to see evidence to back it up, one of the biggest complaints we receive from customers who have had exhausts built by other companies is that the exhaust is far too loud but when they drove it away from having the exhaust fitted it sounded reasonably good but over time it has become louder to a stage where driving the vehicle has become extremely difficult due to the constant loud drone which is a booming sound emitting from the exhaust during fixed speed trips.

Most companies never show you the underside of your vehicle as stated in our exhaust buying guide, they don’t even show you the mufflers and the workmanship all you get to see is a pair of shiny tailpipes, here at Profusion Customs we are proud to document our work, by photographing before and after pictures, and making sure our customers are satisfied with the work we propose to do as in the exhaust buying guide.
We believe in clarity and giving you the right information to enable you to make the right informed decision. Below you will see an illustration of a typical Profusion Customs muffler identifying areas that set us apart from other mufflers available in the industry. Not all mufflers are the same and there are significant differences; what you see on the outside is of little importance compared to what's inside. We will identify each area of the muffler and explain its pros and cons in our exhaust buying guide.
Some customers look at the cost to find the cheapest and ask. How much? Read our exhaust buying guide.
Customers have a fear that they may need to re-mortgage their house to get a new stainless steel exhaust, perhaps at one time they were only affordable by the wealthy or dedicated enthusiasts, however in recent years we have seen prices have come down to the degree that now anybody can afford a stainless steel exhaust system and in some cases it can work out better and cheaper than the one supplied by dealers.
Engines work in different ways, technology has progressed from early motorcars, so a muffler used on one car may not be suitable for another vehicle, therefore, it is vital to establish if the company you are dealing with has the right products at hand for your specific vehicle.


Engines work in different ways, technology has progressed from early motorcars, so a muffler used on one car may not be suitable for another vehicle, therefore, it is vital to establish if the company you are dealing with has the right products at hand for your specific vehicle, as there are many companies that boast they have a wide selection of mufflers and carry colossal stock, but in reality, they hold no inventory but only order in when the need arises and will use the same muffler in a city-run around and a powerful sports car with dire results and boy racer sound.
OEM exhausts rely on baffles and Chambers to keep the sound down, whereas performance exhausts have a straight-through perforated tube which is surrounded by sound deadening material. Customers who purchased a cheap exhaust ofter complain of the noise becoming much louder and embarrassing, an increase in fuel consumption and loss of power apart from cracking and leaking joints. When asked why they decided on that exhaust system, the answer is always, because it was cheap. I think that says it all; people think a budget system will work exactly like a top-end product.
The sad thing is, in their endeavor to save money, customers end up spending more money in the long term to fix the problem apart from all the aggravation involved. We try to give you enough information so that you don’t fall victim. We have noticed some companies have raised prices but continue to supply inferior products to make you believe that you have paid for a top-end system. That’s like paying for butter, thinking you are getting butter, but you get margarine and left with a nasty aftertaste.
There are a limited number of brands of stainless steel exhaust suppliers in the UK and without naming anyone: we will highlight what to look for, we do urge you to read reviews and conduct some research before you decide on an exhaust system.


Exhaust Fitting Companies
It’s essential to know how to choose the right company to install your exhaust system, in the UK there are many franchise companies and dedicated independent workshops, some are specialists whereas some are general servicing garages who thought it would be a great idea to build exhausts without any experience.
We have seen many workshops open up offering lifetime warranty exhausts; however, within a few years, they have packed their bags and gone leaving your lifetime warranty worthless. We have also seen general service garages who are struggling to make money because of their shoddy work and start building exhausts thinking it’s easy and work behind a facade of fantastic marketing.
Some boast that they only use TIG welding, but they don’t tell you that TIG welding is only suitable if it is purge welded, which welds the inside at the same time and leaves a smooth finish, as exhausts expand and contract MIG welding can be a better option, but it depends where the weld is applied, we use TIG and MIG. Read our exhaust buying guide.
Profusion Customs, only specialise in stainless steel exhausts. Customers have driven to us from as far as Europe as well as almost every part of the UK. We provide clear instructions of what we propose to install and make sure you have access to the best components for a perfect job.
We will highlight and conduct a comparison of a budget mufflers compared with a top end branded Profusion ones.


Body
Ribbed Body to compensate.
Usually Unbranded.
Can create resonance.
Tinny Sound.
Hangers cannot be welded to body.
Folded seams.
End Caps
Recessed to meet body.
Weak point at weld
Prone to splitting and leaks.
Internal Core
May not be Stainless Steel.
Not Mandrel bent.
Cheap construction method.
Small internal diameter.
Internal filling
Cheap glass fibre mat.
Prone to vibration.
Can break down and empty.
Little or no stainless fiber used.
Loud exhaust.
Fully polished muffler
Made to look shinny and impressive
Little welding done.
Prone to splitting.


Body
Usually made in-house.
Not the best for strength.
Can Drone
Not consistent.
End Caps
Usually cut from flat sheet.
Pressed edges.
Fused end caps.
creates weak points.
prone to splitting.
Internal Core
Low grade steel.
Internal core does not protrude.
Weaker joints.
Tube is welded to end cap.
Internal filling
Cheap glass fibre mat.
Prone to vibration.
Can break down and empty.
Little or no stainless fiber used.
Loud exhaust.
possibilities of loud drone.
Fully polished muffler
Only polished to eliminate scratches.
No branding.
As good as the person putting it together.
Basic structure.


Body
Fully Polished.
Heavy-gauge 304 Stainless Steel.
Requires no additional strengthening.
Fully branded.
Heavy wall reduces the chance of vibration.
Creates a much deeper sound.
The body of these mufflers can be welded anywhere.
The joints are fully welded for maximum strength.
End Caps
Heavy-gauge press curved end caps.
Overlaps the body.
Fully welded.
Extremely strong.
Hangers can be welded to any point.
Welds are only polished, not ground down.
Protruding central core.
Strongest Structure.
Internal Core
304 stainless steel.
Mandrel bent.
Maximum Flow
No restrictions.
Internal filling
Fine stainless-steel wire mesh.
Acoustic fibre Stays put.
No sound degradation.
Deep Sound.
Costly to manufacture but is best.
Fully polished muffler
Profusion mufflers are fully polished.
Welds remain intact.
Creates a much stronger muffler.
Built to last.
By far the most superior silencers on the market.
HERE ARE A FEW CASE STUDIES OF SOME EXHAUST WE HAVE REMOVED TO REPLACE WITH QUALITY PROFUSION SYSTEM



EXHAUST BUYING GUIDE
An exhaust buying guide has been prepared due to the number of customers we see who have had a stainless steel exhaust fitted to their car by other companies only to find the system is unsuitable we have decided to put together this exhaust buying guide. As market leaders, we feel customers should have a better understanding of the pros and cons of exhaust systems to help you make an informed decision and prevent you paying twice to get the work done again.
Not all exhaust companies are producing shoddy quality work and supplying inferior products; however, to reduce your chances of being duped into believing what they say, we strongly recommend you do some due diligence by reading our exhaust buying guide. There are many factors to agree; what tube diameter, welds, silencers, and tubing will be used and check them after the work has been completed this is because some companies fit reduced diameter tubes because firstly its cheaper and easier to install but can reduce the sound and performance causing power loss, see our exhaust buying guide
Many factors will determine an excellent stainless steel exhaust system. One of the most crucial components is the silencer, also known as a muffler. Anyone can make a claim however the essential factor is to see evidence to back it up, one of the biggest complaints we receive from customers who have had exhausts built by other companies is that the exhaust is far too loud but when they drove it away from having the exhaust fitted it sounded reasonably good but over time it has become louder to a stage where .
driving the vehicle has become extremely difficult due to the constant loud drone which is a booming sound emitting from the exhaust during fixed speed trips.
Most companies never show you the underside of your vehicle as stated in our exhaust buying guide, they don’t even show you the mufflers and the workmanship all you get to see is a pair of shiny tailpipes, here at Profusion Customs we are proud to document our work, by photographing before and after pictures, and making sure our customers are satisfied with the work we propose to do as in the exhaust buying guide.
We believe in clarity and giving you the right information to enable you to make the right informed decision. Below you will see an illustration of a typical Profusion Customs muffler identifying areas that set us apart from other mufflers available in the industry. Not all mufflers are the same and there are significant differences; what you see on the outside is of little importance compared to what's inside. We will identify each area of the muffler and explain its pros and cons in our exhaust buying guide.
Some customers look at the cost to find the cheapest and ask. How much? Read our exhaust buying guide.
Customers have a fear that they may need to re-mortgage their house to get a new stainless steel exhaust, perhaps at one time they were only affordable by the wealthy or dedicated enthusiasts, however in recent years we have seen prices have come down to the degree that now anybody can afford a stainless steel exhaust system and in some cases it can work out better and cheaper than the one supplied by dealers. Engines work in different ways, technology has progressed from early


Customer review


motorcars so a muffler used on one car may not be suitable for another vehicle, therefore, it is vital to establish if the company you are dealing with has the right products at hand for your specific vehicle.
As there are many companies that boast they have a wide selection of mufflers and carry colossal stock, but in reality, they hold no inventory but only order in when the need arises and will use the same muffler in a city-run around and a powerful sports car with dire results and boy racer sound.
OEM exhausts rely on baffles and Chambers to keep the sound down, whereas performance exhausts have a straight-through perforated tube which is surrounded by sound deadening material. Customers who purchased a cheap exhaust often complain of the noise becoming much louder and embarrassing, an increase in fuel consumption and loss of power apart from cracking and leaking joints. When asked why they decided on that exhaust system, the answer is always, because it was cheap. I think that says it all; people think a budget system will work exactly like a top-end product.
The sad thing is, in their endeavour to save money, customers end up spending more money in the long term to fix the problem apart from all the aggravation involved. We try to give you enough information so that you don’t fall victim. We have noticed some companies have raised prices but continue to supply inferior products to make you believe that you have paid for a top-end system. That’s like paying for butter, thinking you are getting butter, but you get margarine and left with a nasty aftertaste.
We do urge you to read our exhaust buying guide and reviews, conduct some research before you decide on an exhaust system.
Exhaust Fitting Companies
It’s essential to know how to choose the right company to install your exhaust system, in the UK there are many franchise companies and dedicated independent workshops, some are specialists whereas some are general servicing garages who thought it would be a great idea to build exhausts without any experience.
We have seen many workshops open up offering lifetime warranty exhausts; however, within a few years, they have packed their bags and gone leaving your lifetime warranty worthless. We have also seen general service garages who are struggling to make money because of their shoddy work and start building exhausts thinking it’s easy and work behind a facade of fantastic marketing.
Some boast that they only use TIG welding, but they don’t tell you that TIG welding is only suitable if it is purge welded, which welds the inside at the same time and leaves a smooth finish, as exhausts expand and contract MIG welding can be a better option, but it depends where the weld is applied, we use TIG and MIG. Read our exhaust buying guide.
Profusion Customs, only specialise in stainless steel exhausts. Customers have driven to us from as far as Europe as well as almost every part of the UK. We provide clear instructions of what we propose to install and make sure you have access to the best components for a perfect job.


We will highlight and conduct a comparison of a budget mufflers compared with
a top end branded Profusion ones.


Body
Ribbed Body to compensate.
Usually Unbranded.
Can create resonance.
Tinny Sound.
Hangers cannot be welded to body.
Folded seams.
End Caps
Recessed to meet body.
Weak point at weld
Prone to splitting and leaks.
Internal Core
May not be Stainless Steel.
Not Mandrel bent.
Cheap construction method.
Small internal diameter.
Internal filling
Cheap glass fibre mat.
Prone to vibration.
Can break down and empty.
Little or no stainless fiber used.
Loud exhaust.
Fully polished muffler
Made to look shinny and impressive
Little welding done.
Prone to splitting.


Body
Usually made in-house.
Not the best for strength.
Can Drone
Not consistent.
End Caps
Usually cut from flat sheet.
Pressed edges.
Fused end caps.
creates weak points.
prone to splitting.
Internal Core
Low grade steel.
Internal core does not protrude.
Weaker joints.
Tube is welded to end cap.
Internal filling
Cheap glass fibre mat.
Prone to vibration.
Can break down and empty.
Little or no stainless fiber used.
Loud exhaust.
possibilities of loud drone.
Fully polished muffler
Only polished to eliminate scratches.
No branding.
As good as the person putting it together.
Basic structure.


Body
Fully Polished.
Heavy-gauge 304 Stainless Steel.
Requires no additional strengthening.
Fully branded.
Heavy wall reduces the chance of vibration.
Creates a much deeper sound.
The body of these mufflers can be welded anywhere.
The joints are fully welded for maximum strength.
End Caps
Heavy-gauge press curved end caps.
Overlaps the body.
Fully welded.
Extremely strong.
Hangers can be welded to any point.
Welds are only polished, not ground down.
Protruding central core.
Strongest Structure.
Internal Core
304 stainless steel.
Mandrel bent.
Maximum Flow
No restrictions.
Internal filling
Fine stainless-steel wire mesh.
Acoustic fibre Stays put.
No sound degradation.
Deep Sound.
Costly to manufacture but is best.
Fully polished muffler
Profusion mufflers are fully polished.
Welds remain intact.
Creates a much stronger muffler.
Built to last.
By far the most superior silencers on the market.
HERE ARE A FEW CASE STUDIES OF SOME EXHAUST
WE HAVE REMOVED TO REPLACE WITH QUALITY PROFUSION SYSTEM







