Porsche 992.1 Carrera S/GTS/Dakar - OPF/GPF Back System - Valved (Works
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£2,336.26
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£2,595.84
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Ford Mustang 2.3 (S650 Fastback) - Valved Non-Resonated Cat-back
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From £2,774.19
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£3,082.43
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Ford Mustang 2.3 (S550/S650 Fastback) - Valved Resonated Cat-back
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From £2,861.55
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£3,179.50
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Ford Mustang 5.0 V8 GT (S650 Fastback) - Active Valved Cat Back
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From £2,491.09
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£2,767.88
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Ford Mustang 5.0 V8 Dark Horse/ Mach 1 - Active Valved Cat Back
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From £2,574.04
Regular price
£2,860.04
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Porsche 718 GTS & Spyder Boxter/GT4 4.0 Cayman (GPF PDK Models) - Particulate Filter-Back
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From £2,412.51
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£2,680.57
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Porsche 718 GTS & Spyder Boxter/GT4 4.0 Cayman (GPF PDK Models) - GPF/OPF Bypass
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From £3,223.36
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£3,581.51
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Seat Leon Cupra 2.0 TSI 245ps (GPF Models) - Particulate Filter-back Race System (Loudest) 80mm
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From £1,443.38
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£1,603.76
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Seat Cupra Formentor 2.0TSI 245ps (GPF Models) - System (Loudest) 80MM OPF/GPF Back System
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From £1,443.38
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£1,603.76
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Seat Cupra Formentor 2.0TSI 245ps (GPF Models) - 80MM OPF/GPF Back System
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From £1,431.23
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£1,590.26
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BMW G8X M3/M4 - OPF/GPF Back
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From £2,740.97
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£3,045.52
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BMW G87 M2 - Non Resonated Cat-Back
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From £3,216.62
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£3,574.02
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BMW G87 M2 - (Loudest) Cat-Back
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From £3,198.42
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£3,553.80
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BMW G87 M2 - OPF/GPF Back
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From £2,679.30
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£2,977.00
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BMW G87 M2 - Centre Resonator Back System
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From £2,559.01
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£2,843.34
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Seat Leon Cupra 2.0 TSI 245ps (GPF Models) - Particulate Filter-back System
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From £1,431.23
Regular price
£1,590.26
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Audi RS6/RS7 C8 - Signature Series Titanium Axle back
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From £7,442.06
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£8,268.96
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VW Arteon 2.0 TSI (USA Non Valved/Downturn Tips) - 76mm Non-Resonated Non-Valved (Loudest) Catback
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Sale price
£1,473.65
Regular price
£1,637.39
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VW Arteon 2.0 TSI (USA Non Valved/Downturn Tips) - 76mm Part Resonated Non-Valved Cat-Back System (Road+)
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£1,619.67
Regular price
£1,799.63
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VW Arteon 2.0 TSI (USA Non Valved/Downturn Tips) - 76mm Resonated Non-Valved Cat-back System
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£1,613.84
Regular price
£1,793.15
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BMW G20 M340i & G22 M440i - Cat-back Fits to OE Trims
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£1,900.24
Regular price
£2,111.38
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BMW G20 M340i & G22 M440i - Cat-Back Quad
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£2,420.99
Regular price
£2,689.99
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BMW G20 M340i & G22 M440i - Cat-back
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£2,246.01
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£2,495.57
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VW Golf R MK7 - 80mm Race Cat-back
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Sale price
From £1,594.40
Regular price
£1,771.56
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Audi RSQ3 - 80mm OPF Back Race (Loudest) Exhaust System - Fits
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Sale price
£2,184.61
Regular price
£2,427.35
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VW Golf R MK8/MK8.5 - 80mm Systems Non Valved
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From £1,665.75
Regular price
£1,850.83
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VW Golf GTI Mk8 - Particulate Filter-Back - Golf R Style - Road+
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From £1,848.09
Regular price
£2,053.43
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VW Golf GTI Mk8 - Particulate Filter-Back - Golf R Style - (Loudest)
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From £1,667.26
Regular price
£1,852.51
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BMW X3 G01/X4 G02 S58 LCI - Primary Cat-Back System
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From £3,772.96
Regular price
£4,192.18
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BMW X3 G01/X4 G02 S58 LCI (GPF Equipped) - OPF/GPF Bypass System
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From £3,910.47
Regular price
£4,344.97
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Porsche 911 991.1 3.8L - Rear Silencer Fits to OE Side Silencers and
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Sale price
£1,530.25
Regular price
£1,700.28
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Skoda Octavia vRS 1.4 TSI 245ps (GPF Models) - OPF/GPF Back System - Uses OE Tips
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From £1,052.94
Regular price
£1,169.93
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Audi TTRS MK3 Quattro - 80mm Resonated Cat Back
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From £2,650.48
Regular price
£2,944.98
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Audi RS3 8V Facelift - Maxton x Milltek Quad Outlet Rear Diffuser
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From £560.70
Regular price
£623.00
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Audi SQ7/SQ8 V8 Pre LCI - Front Pipe Back Exhaust System - Fits to OE Tailpipes
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Sale price
£4,364.98
Regular price
£4,849.98
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Audi SQ7/SQ8 V8 Pre LCI - OPF/GPF Back Exhaust System - Fits to OE Tailpipes
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Sale price
£5,267.17
Regular price
£5,852.41
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Exhaust Systems
More sound. More flow. More character.
Upgrading your exhaust system is one of the best ways to transform how your car feels and sounds. A performance exhaust improves exhaust flow, reduces restriction and delivers a deeper, more aggressive tone.
At Fifty9 Performance, we supply high quality performance exhaust systems in the UK designed to improve sound, response and overall driving enjoyment.
- Catback Exhaust Systems - improved sound and exhaust flow
- Valved Exhaust Systems - control sound with adjustable valves
- Performance Mufflers - reduce restriction and enhance tone
- Full Exhaust Systems - complete upgrades for maximum performance
If you are looking for performance exhaust systems, catback exhausts or valved exhaust upgrades, explore our range and transform the sound of your car.

