Porsche 718 GTS & Spyder Boxster/GT4 4.0 Cayman (GPF Pre Feb 2020 Models) - GPF/OPF Bypass
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Sale price
From £2,944.99
Regular price
£3,464.70
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VW Arteon 2.0 TSI - Non Resonated Valved Cat Back Exhaust System
Regular price
Sale price
£1,541.80
Regular price
£1,813.88
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VW Arteon 2.0 TSI - Semi-Resonated Valved Cat Back Exhaust System (Road+ System)
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Sale price
£1,679.70
Regular price
£1,976.12
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VW Arteon 2.0 TSI - Valved Cat Back Exhaust System (ECE Approval Awaiting Testing)
Regular price
Sale price
£1,674.19
Regular price
£1,969.64
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Porsche 718 GTS 2.5T (Boxter/Cayman) - Full System (Including De Cat)
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Sale price
£1,847.33
Regular price
£2,173.33
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Porsche 718 GTS 2.5T (Boxter/Cayman) - Full System
Regular price
Sale price
From £1,847.33
Regular price
£2,173.33
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Porsche 718 GTS 2.5T (Boxter/Cayman) - Back Exhaust
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From £1,012.29
Regular price
£1,190.93
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Audi S8 D4 Quattro - Cat Replacement Pipes
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Sale price
£1,627.96
Regular price
£1,915.25
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Audi S8 D4 Quattro - Hi-Flow Sports Cats
Regular price
Sale price
£4,014.06
Regular price
£4,722.42
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Audi S8 D5 V8 - OPF-Back Exhaust System
Regular price
Sale price
From £4,178.69
Regular price
£4,916.11
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Ford Fiesta MK8 ST 1.5 (Pre Sept 2020) - GPF Back Maxton Designs Dual Outlet
Regular price
Sale price
From £1,100.67
Regular price
£1,294.91
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Ford Puma ST (GPF Equipped) - Valved OPF Back Exhaust System
Regular price
Sale price
From £969.47
Regular price
£1,140.55
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Audi RS6/RS7 C8 - Cat Back Back System
Regular price
Sale price
£4,157.89
Regular price
£4,891.63
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Audi S3 8Y - Part-Resonated Cat-Back Exhaust System
Regular price
Sale price
From £2,032.78
Regular price
£2,391.50
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Audi S3 8Y GPF models - 80mm Resonated Cat-Back Exhaust System
Regular price
Sale price
From £2,175.54
Regular price
£2,559.46
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Audi S3 8Y Sportback GPF models - 'Race' 80mm Non-Resonated (Loudest) Cat-Back Exhaust System
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Sale price
From £1,727.45
Regular price
£2,032.30
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Audi S3 8Y Sportback GPF models - 80mm Non-Resonated Cat-Back Exhaust System
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Sale price
From £1,836.90
Regular price
£2,161.06
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Audi S3 8Y Sportback GPF models - 80mm Resonated Cat-Back Exhaust System
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Sale price
From £1,979.66
Regular price
£2,329.01
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Audi RS6/RS7 C8 & S8 D5 - Large Bore Downpipe & Hi Flow Sports Cat (For OE System)
Regular price
Sale price
£4,216.29
Regular price
£4,960.34
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Audi RS6/RS7 C8 & S8 D5 - Large Bore Downpipe & Hi Flow Sports Cat (For Milltek System)
Regular price
Sale price
£4,229.21
Regular price
£4,975.54
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Audi RS6/RS7 C8 & S8 D5 - Large Bore Downpipes & De-Cat (For OE System)
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Sale price
£2,550.41
Regular price
£3,000.48
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Audi RS6/RS7 C8 & S8 D5 - Large Bore Downpipes & De-Cat (For Milltek System)
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Sale price
£2,563.32
Regular price
£3,015.67
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VW Golf GTI Mk8 - 80mm OPF/GPF Back Exhaust System
Regular price
Sale price
From £1,112.43
Regular price
£1,308.74
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Skoda Octavia vRS 2.0 TSI 245ps (GPF & Post Facelift Models) - Cat Back Exhaust System - Uses OE Tips
Regular price
Sale price
£1,152.04
Regular price
£1,355.34
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Ford Fiesta MK8/8.5 ST 1.5 - GPF Back Exhaust System
Regular price
Sale price
£1,157.71
Regular price
£1,362.01
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Ford Fiesta MK8/8.5 ST 1.5 - GPF Back System
Regular price
Sale price
From £947.41
Regular price
£1,114.60
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Audi RSQ3 - 80mm OPF Back Exhaust System - Fits
Regular price
Sale price
£2,010.06
Regular price
£2,364.78
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BMW G20/21 M340i & G22 M440i - Cat-Back Exhaust System
Regular price
Sale price
From £2,094.69
Regular price
£2,464.34
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BMW G20/21 M340i & G22 M440i - Cat-Back Exhaust System - Uses OE Trims
Regular price
Sale price
£1,768.13
Regular price
£2,080.15
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BMW G20/21 M340i & G22 M440i - OPF Back Exhaust System
Regular price
Sale price
From £1,715.99
Regular price
£2,018.81
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BMW G20/21 M340i & G22 M440i - OPF Back Exhaust System - Uses OE Trims
Regular price
Sale price
£1,389.43
Regular price
£1,634.62
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Audi RS6/RS7 C8 - Non Resonated Cat Back Back System (Twin 80mm)
Regular price
Sale price
£4,659.36
Regular price
£5,481.60
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Mercedes A45/A45S + CLA45/45S AMG - Large Bore Downpipe & De-Cat
Regular price
Sale price
£841.92
Regular price
£990.49
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Mercedes A45/A45S + CLA45/45S AMG - Large Bore Downpipe & Hi-Flow Sports Cat - Includes OPF/GPF Bypass
Regular price
Sale price
£1,461.17
Regular price
£1,719.02
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Large Bore Downpipes & De Cats (Audi RSQ8/SQ8/SQ7)
Regular price
Sale price
£2,416.07
Regular price
£2,842.44
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Large Bore Downpipes & Hi Flow Sports Cats (Audi RSQ8/SQ8/SQ7)
Regular price
Sale price
£3,881.16
Regular price
£4,566.07
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Exhausts
More sound. More flow. More character.
The right exhaust upgrade can completely transform how a car feels. From sharper throttle response to a deeper, more aggressive sound, performance exhaust components are one of the most popular upgrades for enthusiasts.
At Fifty9 Performance, we supply high quality performance exhaust parts in the UK designed to improve exhaust flow, unlock power and give your car the sound it deserves.
- Catback Exhaust Systems - improve sound, flow and overall performance
- Downpipes - reduce restriction and support higher power levels
- Sports Cats - performance catalytic converters for improved flow
- Exhaust Hardware - clamps, gaskets and installation components
If you are looking for performance exhaust systems, sports cats, downpipes or exhaust upgrades, explore our range and take your car’s sound and performance to the next level.

