Austin 18 stainless steel exhaust

Custom Built Performance System

Original Austin 18 exhaust is built in such a way that it causes excessive back pressure which does not allow the engine gasses to vacate quickly causing loss of performance and excessive fuel consumption. Most original exhaust systems are made of mild steel, which can deteriorate over time and when the time comes to replace it, the dealer replacement parts can cost anywhere into the thousands. We have the perfect solution for your Austin 18 , we can replace your existing exhaust system with a custom built bespoke T-304 grade stainless steel exhaust, which comes with lifetime warranty, we will only supply high quality branded Magnaflow and Profusion components and fabricate the exhaust for a perfect fit.

With a massive range of mufflers we can help you achieve the perfect sound you require; your choices are quiet mid or loud. Our mufflers have been dyno tested to deliver Quality, Power and Sound. The Wide open technology allows your engine to breath freely without restrictions which in turn delivers an increase in performance.

Profusion Customs are UK’s Exclusive Distributor for Magnaflow & the Largest Stockists outside of Magnaflow

QUALITY – As Market leaders, we supply and fit high end custom stainless steel exhausts using premium components and the latest technology, backed with a lifetime warranty for total peace of mind.

POWER – With years of experience we’ve learned that automotive enthusiasts always want more. If it doesn’t produce power, we don’t supply it.

SOUND – You want to have the best sound possible. With this in mind, our mufflers have a free flowing, straight through design with a perforated stainless steel core mesh wrap and acoustical fiber fill to deliver that smooth distinct, deep tone, to ensure long life and NO SOUND DEGREDATION.

Click here to see the build process

When we build a stainless steel exhaust system we take the following into account:

Welds are well penetrated.
No holes or gaps left in welds
Only stainless steel welding wire will be used.
Visually check hard to see areas using Mirrors and probe cameras.
Position exhaust away from plastic and rubber parts.
Avoid damaging other parts while removing or re-building.
Make sure there is no strain on the system.
Fitted high as possible for maximum ground clearance.
Hanger points are secure and sound.
The correct mufflers are used for the right sound
Bends have smooth transitions for faster flow
Tail pipes are aligned visually for perfect alignment.
Dual systems have similar symmetry.
Joins are clamped securely with no leaks.
Dual systems have equal smoke from perfect Y-Pipes
If X pipe is used it is fitted at the right distance from engine.
Thorough inspection before delivery.
Road test on speed bumps check.

No other company has such a high standards of quality control, when we build your system it is built with a lot of care. We only specialize in exhausts and tuning, nothing else.

We can offer you free technical support to help you make the right decision, read our free exhaust-buying guide for more information.

The next step is to fill out our quick quote form and you might be pleasantly surprised how little it can cost.

We Can Replace Any Exhaust Part:

Faulty Lambda sensor
Faulty Catalytic converter
Faulty DPF (Diesel Particle Filter)
Worn or broken Flexi pipe
De-cat pipe
Tips or Tailpipe replacement
Damaged or worn Mufflers
Damaged or worn Tubing
Broken Hangers
Broken Mountings
Small section to full cat-back exhaust system.
Stainless steel manifolds for street or race
Turbo Manifolds
Leaking flanges


 I had a stainless steel  exhaust built by another company for just £400 but noticed that after 1000 miles the car had become significantly louder to the degree it was embarrassing, having trawled the internet it emerged that the company who did the work had supplied a muffler that cost them £7 now once I got my breath back, I was so please I had found Profusion and Raj, who did the work deserves every praise I can give, he was so professional with his approach, he told me very clearly what my options were and we agreed on having the system replaced with Magnaflow mufflers and my god what a difference, the sound is just right, I am only disappointed I did not find them sooner, but it was my fault for trying to save money.Thank you Raj. – Lloyd Deakin

 I was recommended to use Profusion Customs for a first class job, I did and bought my mate a drink for sending me to you guys. I was pleasantly surprised how little it did cost. Many thanks. – Samuel Johnson

 I hope you guys will use my testimonial on your website because people deserve to know, I went to XXXXX XXXXXXX to get my såçingle exit exhaust changed to a dual exit, once they did the work I did notice that the exhaust smoke was just emanating from one tip on one side and not the one they had made, when I asked them about it they said it will take a little time, so be patient, as an accountant I did as they said having spent £350 for the work, 6 months later I noticed that one of the tips started to change colour but the other one was still shiny, I went to profusion customs for a second opinion and when the car was on the ramp I looked at what these crooks had done to my car I was horrified, all they did was weld a straight pipe from one tip to the other, Profusion Customs told me what needed to be done to get it right and I can recommend them to anyone, don’t go anywhere else just trying to save a buck get the job done once and get it right. I’m sure you have heard this before but I wish I found you earlier. – P. Kumar.

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