Skip to content
Find us Hours of Business Email Us Shipping Cookie policy Returns Terms & Conditions Privacy Policy Refunds

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.

Filters

Save 8% Save %
£191.79
£191.79 - £191.79
£191.79
£175.62
£175.62 - £175.62
£175.62

Trask Assault Breather Kit for Various Various Harley-Davidson Motorcycles (See Fitment List)

in stock

DescriptionExternal Breather Kit for Assault Charge Air CleanerVents breathers to atmosphere instead of recirculating oil mist back through the int...

View full details
£191.79
£191.79 - £191.79
£191.79
£175.62
£175.62 - £175.62
£175.62
Save 8% Save %
Save 8% Save %
£1,435.12
£1,435.12 - £1,435.12
£1,435.12
£1,314.24
£1,314.24 - £1,314.24
£1,314.24

Trask Black Ceramic 2-into-1 Assault Exhaust System for 2021-2026 Harley-Davidson Softail

in stock

Description2-into-1 Assault Exhaust SystemMade from high-quality stainless steel, mandrel bent, then TIG-weldedIncluded custom heat shields with wi...

View full details
£1,435.12
£1,435.12 - £1,435.12
£1,435.12
£1,314.24
£1,314.24 - £1,314.24
£1,314.24
Save 8% Save %
Save 8% Save %
£1,580.25
£1,580.25 - £1,580.25
£1,580.25
£1,447.16
£1,447.16 - £1,447.16
£1,447.16

2-into-1 Assault Exhaust System Softail

Only 3 left!

Description2-into-1 Assault Exhaust SystemMade from high-quality stainless steel, mandrel bent, then TIG-weldedIncluded custom heat shields with wi...

View full details
£1,580.25
£1,580.25 - £1,580.25
£1,580.25
£1,447.16
£1,447.16 - £1,447.16
£1,447.16
Save 8% Save %
Sold out
£1,580.25
£1,580.25 - £1,580.25
£1,580.25
£1,447.16
£1,447.16 - £1,447.16
£1,447.16

Trask Black 2-into-1 Assault Exhaust System for 2004-2022 Harley-Davidson Sportster

Out of stock

Description2-into-1 Assault Exhaust SystemMade from high-quality stainless steel, mandrel bent, then TIG-weldedIncludes custom heat shields with wi...

View full details
£1,580.25
£1,580.25 - £1,580.25
£1,580.25
£1,447.16
£1,447.16 - £1,447.16
£1,447.16
Sold out
Save 8% Save %
£1,580.25
£1,580.25 - £1,580.25
£1,580.25
£1,447.16
£1,447.16 - £1,447.16
£1,447.16

2-into-1 Assault Exhaust System Sportster

Only 4 left!

Description2-into-1 Assault Exhaust SystemMade from high-quality stainless steel, mandrel bent, then TIG-weldedIncludes custom heat shields with wi...

View full details
£1,580.25
£1,580.25 - £1,580.25
£1,580.25
£1,447.16
£1,447.16 - £1,447.16
£1,447.16
Save 8% Save %
Save 8% Save %
£2,059.89
£2,059.89 - £2,059.89
£2,059.89
£1,886.41
£1,886.41 - £1,886.41
£1,886.41

Trask Polished Big Sexy 2-into-1 High Performance Exhaust System for 2007-2016 Harley-Davidson Touring Models

Only 5 left!

Description2-into-1 Big Sexy Exhaust SystemMade for big power Twin Cam engines3 step header, high flow merge and muffler designDouble slip joint fo...

View full details
£2,059.89
£2,059.89 - £2,059.89
£2,059.89
£1,886.41
£1,886.41 - £1,886.41
£1,886.41
Save 8% Save %
Save 8% Save %
£1,786.30
£1,786.30 - £1,786.30
£1,786.30
£1,635.86
£1,635.86 - £1,635.86
£1,635.86

Trask Black Big Sexy 2-into-1 High Performance Exhaust System for 2007-2016 Harley-Davidson Touring Models

in stock

Description2-into-1 Big Sexy Exhaust SystemMade for big power Twin Cam engines3 step header, high flow merge and muffler designDouble slip joint fo...

View full details
£1,786.30
£1,786.30 - £1,786.30
£1,786.30
£1,635.86
£1,635.86 - £1,635.86
£1,635.86
Save 8% Save %
Save 8% Save %
£1,786.30
£1,786.30 - £1,786.30
£1,786.30
£1,635.86
£1,635.86 - £1,635.86
£1,635.86

Trask Stainless Steel 2-into-1 Big Sexy Exhaust for 2007-2016 Harley-Davidson Touring Models

in stock

Description2-into-1 Big Sexy Exhaust SystemMade for big power Twin Cam engines3 step header, high flow merge and muffler designDouble slip joint fo...

View full details
£1,786.30
£1,786.30 - £1,786.30
£1,786.30
£1,635.86
£1,635.86 - £1,635.86
£1,635.86
Save 8% Save %
Save 8% Save %
£175.74
£175.74 - £175.74
£175.74
£160.94
£160.94 - £160.94
£160.94

Trask Big Power Filter Kit

in stock

DescriptionBig Power Filter KitFits all Assault Charge air cleaners6061 Machined billet aluminium armsRechargeable long life filterIncludes rain so...

View full details
£175.74
£175.74 - £175.74
£175.74
£160.94
£160.94 - £160.94
£160.94
Save 8% Save %
Save 8% Save %
£175.74
£175.74 - £175.74
£175.74
£160.94
£160.94 - £160.94
£160.94

Trask Black Big Power Assault Air Filter

in stock

DescriptionBig Power Filter KitFits all Assault Charge air cleaners6061 Machined billet aluminium armsRechargeable long life filterIncludes rain so...

View full details
£175.74
£175.74 - £175.74
£175.74
£160.94
£160.94 - £160.94
£160.94
Save 8% Save %
Save 8% Save %
£175.74
£175.74 - £175.74
£175.74
£160.94
£160.94 - £160.94
£160.94

Trask Chrome Big Power Assault Air Filter

in stock

DescriptionBig Power Filter KitFits all Assault Charge air cleaners6061 Machined billet aluminium armsRechargeable long life filterIncludes rain so...

View full details
£175.74
£175.74 - £175.74
£175.74
£160.94
£160.94 - £160.94
£160.94
Save 8% Save %
£872.01 - £872.01
£872.01
£885.22
£885.22 - £885.22
£885.22

4.5" MotoPro45 Slip-on Mufflers for Indian

in stock

Description4.5" MotoPro45 Slip-On Mufflers for IndianRINEHART 4.5" MOTOPRO45 SLIP-ON EXHAUST FOR INDIAN4.5” Slip on mufflers for 2014 and later bag...

View full details
£872.01 - £872.01
£872.01
£885.22
£885.22 - £885.22
£885.22
£872.01 - £872.01
£872.01
£885.22
£885.22 - £885.22
£885.22

4.5" MotoPro45 Slip-on Mufflers for Indian

in stock

Description4.5" MotoPro45 Slip-On Mufflers for IndianRINEHART 4.5" MOTOPRO45 SLIP-ON EXHAUST FOR INDIAN4.5” Slip on mufflers for 2014 and later bag...

View full details
£872.01 - £872.01
£872.01
£885.22
£885.22 - £885.22
£885.22
£811.91 - £811.91
£811.91
£824.21
£824.21 - £824.21
£824.21

Muffler Slip-On 4" DBX40 Duals for Indian

in stock

Description4" Slip-On Muffler DBX40 Duals for Indian4" DBX40 SLIP-ON EXHAUST FOR INDIAN4” Slip on mufflers for 2014 and later bagger, touring and e...

View full details
£811.91 - £811.91
£811.91
£824.21
£824.21 - £824.21
£824.21
£764.80 - £764.80
£764.80
£776.39
£776.39 - £776.39
£776.39

Muffler Slip-On 4" DBX40 Duals for Indian

in stock

Description4" Slip-On Muffler DBX40 Duals for Indian4" DBX40 SLIP-ON EXHAUST FOR INDIAN4” Slip on mufflers for 2014 and later bagger, touring and e...

View full details
£764.80 - £764.80
£764.80
£776.39
£776.39 - £776.39
£776.39
£725.45 - £725.45
£725.45
£736.44
£736.44 - £736.44
£736.44

Muffler Slip-On 4" DBX40 Duals for Indian

Only 4 left!

Description4" Slip-On Muffler DBX40 Duals for Indian4" DBX40 SLIP-ON EXHAUST FOR INDIAN4” Slip on mufflers for 2014 and later bagger, touring and e...

View full details
£725.45 - £725.45
£725.45
£736.44
£736.44 - £736.44
£736.44
£655.32 - £655.32
£655.32
£665.26
£665.26 - £665.26
£665.26

Moto series 90° Velocity Air Cleaner Softail, Touring, Trike

in stock

Water resistant.

£655.32 - £655.32
£655.32
£665.26
£665.26 - £665.26
£665.26
Save 8% Save %
£188.90
£188.90 - £188.90
£188.90
£172.96
£172.96 - £172.96
£172.96

Klassic End Cap Tip

in stock

DescriptionKlassic End Cap TipCan be rotated 360° at 90° incrementsMachined in AmericaFits all 4-1/2" Khrome Werks mufflers that accept billet alum...

View full details
£188.90
£188.90 - £188.90
£188.90
£172.96
£172.96 - £172.96
£172.96
Save 8% Save %
Save 8% Save %
£188.90
£188.90 - £188.90
£188.90
£172.96
£172.96 - £172.96
£172.96

Klassic End Cap Tip

in stock

DescriptionKlassic End Cap TipCan be rotated 360° at 90° incrementsMachined in AmericaFits all 4-1/2" Khrome Werks mufflers that accept billet alum...

View full details
£188.90
£188.90 - £188.90
£188.90
£172.96
£172.96 - £172.96
£172.96
Save 8% Save %
Save 8% Save %
£162.11
£162.11 - £162.11
£162.11
£148.46
£148.46 - £148.46
£148.46

Khrome Werks Chrome Right 4-1/2 in. Klassic Tip

in stock

Description4-1/2" Klassic TipCan be rotated 360° at 90° incrementsFits all 4-1/2" Khrome Werks mufflers that accept billet aluminium tipsMachined i...

View full details
£162.11
£162.11 - £162.11
£162.11
£148.46
£148.46 - £148.46
£148.46
Save 8% Save %
Save 8% Save %
£162.11
£162.11 - £162.11
£162.11
£148.46
£148.46 - £148.46
£148.46

Khrome Werks Chrome Left 4-1/2 in. Klassic Tip

Only 5 left!

Description4-1/2" Klassic TipCan be rotated 360° at 90° incrementsFits all 4-1/2" Khrome Werks mufflers that accept billet aluminium tipsMachined i...

View full details
£162.11
£162.11 - £162.11
£162.11
£148.46
£148.46 - £148.46
£148.46
Save 8% Save %
Save 8% Save %
£713.17
£713.17 - £713.17
£713.17
£653.10
£653.10 - £653.10
£653.10

Khrome Werks Eclipse Ghost Pipe for 2009-2025 Harley-Davidson Touring Motorcycles

in stock

DescriptionSidekick Ghost PipeDesigned to increase horsepower and torque while providing an aggressive, low-frequency sound level16-gauge HP-Plus m...

View full details
£713.17
£713.17 - £713.17
£713.17
£653.10
£653.10 - £653.10
£653.10
Save 8% Save %
Save 8% Save %
£778.00
£778.00 - £778.00
£778.00
£712.49
£712.49 - £712.49
£712.49

Khrome Werks Black 4.5 in. War Hammer Muffler with out Bags for Various Indian Motorcycles

Only 5 left!

Description4-1/2" War Hammer MufflersFeaturing a 16-gauge muffler body with a 2-1/2” perforate core baffleIndustry-leading signature Khrome Werks d...

View full details
£778.00
£778.00 - £778.00
£778.00
£712.49
£712.49 - £712.49
£712.49
Save 8% Save %
Save 8% Save %
£759.03
£759.03 - £759.03
£759.03
£695.11
£695.11 - £695.11
£695.11

Khrome Werks Black 4.5 in. War Hammer Muffler with Bags for Various Indian Motorcycles

in stock

Description4-1/2" War Hammer MufflersFeaturing a 16-gauge muffler body with a 2-1/2” perforate core baffleIndustry-leading signature Khrome Werks d...

View full details
£759.03
£759.03 - £759.03
£759.03
£695.11
£695.11 - £695.11
£695.11
Save 8% Save %

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare