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Engine & Performance

Choose from Engine & Performance products for Harley-Davidson, American V-twin and compatible motorcycle applications. Across the range you will find products for engine components. Compatibility varies, so match the stated model, year and technical details before ordering.

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£2,074.28
£2,074.28 - £2,074.28
£2,074.28
£1,808.95
£1,808.95 - £1,808.95
£1,808.95

2-into-1 Big Sexy Exhaust System

Only 1 left!

Description2-into-1 Big Sexy Exhaust SystemThree-step header with a high-flow merge mufflerDouble-slip joints for heat expansion and exhaust seal q...

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£2,074.28
£2,074.28 - £2,074.28
£2,074.28
£1,808.95
£1,808.95 - £1,808.95
£1,808.95
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£1,797.73
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£1,797.73
£1,635.90
£1,635.90 - £1,635.90
£1,635.90

2-into-1 Big Sexy Exhaust System

in stock

Description2-into-1 Big Sexy Exhaust SystemThree-step header with a high-flow merge mufflerDouble-slip joints for heat expansion and exhaust seal q...

View full details
£1,797.73
£1,797.73 - £1,797.73
£1,797.73
£1,635.90
£1,635.90 - £1,635.90
£1,635.90
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£717.02
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£605.72
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£605.72

Assault Charge High-Flow Air Cleaner Kit

in stock

DescriptionAssault Charge High-Flow Air Cleaner KitFeatures a billet aluminium backing plate with hidden integrated breather system and a plexiglas...

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£717.02
£717.02 - £717.02
£717.02
£605.72
£605.72 - £605.72
£605.72
Save 16% Save %
Save 9% Save %
£1,797.73
£1,797.73 - £1,797.73
£1,797.73
£1,635.90
£1,635.90 - £1,635.90
£1,635.90

2-into-1 Big Sexy Exhaust System

in stock

Description2-into-1 Big Sexy Exhaust SystemThree-step header with a high-flow merge mufflerDouble-slip joints for heat expansion and exhaust seal q...

View full details
£1,797.73
£1,797.73 - £1,797.73
£1,797.73
£1,635.90
£1,635.90 - £1,635.90
£1,635.90
Save 9% Save %
Save 9% Save %
£1,797.73
£1,797.73 - £1,797.73
£1,797.73
£1,635.90
£1,635.90 - £1,635.90
£1,635.90

2-into-1 Big Sexy Exhaust System

Only 5 left!

Description2-into-1 Big Sexy Exhaust SystemThree-step header with a high-flow merge mufflerDouble-slip joints for heat expansion and exhaust seal q...

View full details
£1,797.73
£1,797.73 - £1,797.73
£1,797.73
£1,635.90
£1,635.90 - £1,635.90
£1,635.90
Save 9% Save %
Save 9% Save %
£1,797.73
£1,797.73 - £1,797.73
£1,797.73
£1,635.90
£1,635.90 - £1,635.90
£1,635.90

2-into-1 Big Sexy Exhaust System

in stock

Description2-into-1 Big Sexy Exhaust SystemThree-step header with a high-flow merge mufflerDouble-slip joints for heat expansion and exhaust seal q...

View full details
£1,797.73
£1,797.73 - £1,797.73
£1,797.73
£1,635.90
£1,635.90 - £1,635.90
£1,635.90
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Save 19% Save %
£57.67
£57.67 - £57.67
£57.67
£46.72
£46.72 - £46.72
£46.72

Fuel Tank Cover

in stock

DescriptionFuel Tank CoverProtect your tank in style while servicing or storing your motorcycleSaddlemen Race Development inspired graphicSoft inne...

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£57.67
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£57.67
£46.72
£46.72 - £46.72
£46.72
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£57.67 - £57.67
£57.67
£58.16
£58.16 - £58.16
£58.16

Fuel Tank Cover

in stock

DescriptionFuel Tank CoverProtect your tank in style while servicing or storing your motorcycleSaddlemen Race Development inspired graphicSoft inne...

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£57.67 - £57.67
£57.67
£58.16
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£58.16
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£112.69
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£112.69
£102.54
£102.54 - £102.54
£102.54

Big Sucker® Upgrade Air Filter

in stock

DescriptionBig Sucker® Upgrade Air FilterThe increase in airflow provided by the filter results in a 3hp gain on factory displacement M8 engines, u...

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£112.69
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£112.69
£102.54
£102.54 - £102.54
£102.54
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£611.42
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£611.42
£556.39
£556.39 - £556.39
£556.39

Monster Sucker Air Cleaner

in stock

DescriptionMonster Sucker Air CleanerHidden breather technology for a reliable intake that enhances the performance of the engineHidden breathers a...

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£611.42
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£611.42
£556.39
£556.39 - £556.39
£556.39
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£611.42
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£611.42
£556.37
£556.37 - £556.37
£556.37

Monster Sucker Air Cleaner

in stock

DescriptionMonster Sucker Air CleanerHidden breather technology for a reliable intake that enhances the performance of the engineHidden breathers a...

View full details
£611.42
£611.42 - £611.42
£611.42
£556.37
£556.37 - £556.37
£556.37
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£611.42
£611.42 - £611.42
£611.42
£556.37
£556.37 - £556.37
£556.37

Monster Sucker Air Cleaner

Only 3 left!

DescriptionMonster Sucker Air CleanerHidden breather technology for a reliable intake that enhances the performance of the engineHidden breathers a...

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£611.42
£611.42 - £611.42
£611.42
£556.37
£556.37 - £556.37
£556.37
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£683.66
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£683.66
£577.70
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£577.70

Stage 2 Oval Air Cleaner Kit

Only 1 left!

DescriptionStage 2 Oval Air Cleaner KitOpen face filter design for maximum airflow Performance black pre-oiled air filter features a high flow plea...

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£683.66
£683.66 - £683.66
£683.66
£577.70
£577.70 - £577.70
£577.70
Save 15% Save %
Save 9% Save %
£611.42
£611.42 - £611.42
£611.42
£556.37
£556.37 - £556.37
£556.37

Monster Sucker Air Cleaner

in stock

DescriptionMonster Sucker Air CleanerHidden breather technology for a reliable intake that enhances the performance of the engineHidden breathers a...

View full details
£611.42
£611.42 - £611.42
£611.42
£556.37
£556.37 - £556.37
£556.37
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Thrashin Supply Co. Points Cover Polished Dished 6061 Billet Aluminium
£75.14 - £75.14
£75.14
£75.14 - £75.14
£75.14

Thrashin Supply Co. Points Cover Polished Dished 6061 Billet Aluminium #TSC-3027-2

in stock

DescriptionPoints Cover6061 billet aluminium constructionMade in the USASpecifications Colour/Finish: Polished Type: Point Product Name: Cover ...

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£75.14 - £75.14
£75.14
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£65.67 - £65.67
£65.67
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£65.67

Thrashin Supply Co. Points Cover Black Dished 6061 Billet Aluminium #TSC-3027-4

in stock

DescriptionPoints Cover6061 billet aluminium constructionMade in the USASpecifications Colour/Finish: Black Type: Point Product Name: Cover Sty...

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£65.67 - £65.67
£65.67
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£65.67
£61.68 - £61.68
£61.68
£61.68 - £61.68
£61.68

Thrashin Supply Co. Points Cover Black Dished 6061 Billet Aluminium #TSC-3026-4

in stock

DescriptionPoints Cover6061 billet aluminium constructionMade in the USASpecifications Colour/Finish: Black Riding Style: Street Type: Point Ma...

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£61.68 - £61.68
£61.68
£61.68 - £61.68
£61.68
Thrashin Supply Co. Points Cover Polished Dished 6061 Billet Aluminium
£72.32 - £72.32
£72.32
£72.32 - £72.32
£72.32

Thrashin Supply Co. Points Cover Polished Dished 6061 Billet Aluminium #TSC-3026-2

in stock

DescriptionPoints Cover6061 billet aluminium constructionMade in the USASpecifications Style: Dished Units: Each Riding Style: Street Product N...

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£72.32 - £72.32
£72.32
£72.32 - £72.32
£72.32
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£598.66
£598.66 - £598.66
£598.66
£509.06
£509.06 - £509.06
£509.06

Boom Box Air Cleaner Kit

in stock

DescriptionBoom Box Air Cleaner KitThe forward offset, along with the slanted and angled filter are design to maximise airflow while maintaining mo...

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£598.66
£598.66 - £598.66
£598.66
£509.06
£509.06 - £509.06
£509.06
Save 15% Save %
Save 15% Save %
£598.66
£598.66 - £598.66
£598.66
£509.06
£509.06 - £509.06
£509.06

Boom Box Air Cleaner Kit

Only 2 left!

DescriptionBoom Box Air Cleaner KitThe forward offset, along with the slanted and angled filter are design to maximise airflow while maintaining mo...

View full details
£598.66
£598.66 - £598.66
£598.66
£509.06
£509.06 - £509.06
£509.06
Save 15% Save %
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£584.06
£584.06 - £584.06
£584.06
£496.64
£496.64 - £496.64
£496.64

Boom Box Air Cleaner Kit

in stock

DescriptionBoom Box Air Cleaner KitThe forward offset, along with the slanted and angled filter are design to maximise airflow while maintaining mo...

View full details
£584.06
£584.06 - £584.06
£584.06
£496.64
£496.64 - £496.64
£496.64
Save 15% Save %
Save 15% Save %
£598.66
£598.66 - £598.66
£598.66
£509.06
£509.06 - £509.06
£509.06

Boom Box Air Cleaner Kit

in stock

DescriptionBoom Box Air Cleaner KitThe forward offset, along with the slanted and angled filter are design to maximise airflow while maintaining mo...

View full details
£598.66
£598.66 - £598.66
£598.66
£509.06
£509.06 - £509.06
£509.06
Save 15% Save %
Trask Tornado Turbo Performance Kit Polished
£7,549.18 - £7,549.18
£7,549.18
£7,549.18 - £7,549.18
£7,549.18

Trask Tornado Turbo Performance Kit Polished #TM-7600-PO

in stock

DescriptionTornado Turbo Performance KitBolt on 40%-50% more power for stock 107", 114" and 117" M-Eight motorsTrask compressor and turbine housing...

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£7,549.18 - £7,549.18
£7,549.18
£7,549.18 - £7,549.18
£7,549.18
Trask Tornado Turbo Performance Kit Black
£7,549.18 - £7,549.18
£7,549.18
£7,549.18 - £7,549.18
£7,549.18

Trask Tornado Turbo Performance Kit Black #TM-7600

Only 1 left!

DescriptionTornado Turbo Performance KitBolt on 40%-50% more power for stock 107", 114" and 117" M-Eight motorsTrask compressor and turbine housing...

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£7,549.18 - £7,549.18
£7,549.18
£7,549.18 - £7,549.18
£7,549.18

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