Nationwide product support SUMMER20Summer Sale deals live now Free U.S. shipping over $99

Fast USA delivery FREEFree shipping on qualifying orders Tracked delivery

Real specialist support FSPPerformance parts from trusted brands Genuine parts only

Summer sale live nowSALE Grab ongoing Summer Sale deals Limited time only

Delivery & returns

Free USA shipping on qualifying ordersMon–Fri, 9:00 AM–5:30 PM ET

FULL SEND PARTSPerformance without compromise

Wishlist0

American performance collection

supertech.

Refine your build

Fitment status

Verified vehicle fitment

Universal fit

Fitment review required

Fitment not verified

Supplier availability

In stock

Available from supplier

Department

Product attributes

Special order

Clearance

CARB status

Not CARB approved

Acknowledgement required

No CARB restriction indicated

Product type

Brand

Sort by

Clear

Sale

Supertech

Supertech BMW S54 88mm Dia 1.2mm Thick Cooper ring Head Gasket

$330.64 $413.18

Sale

Supertech

Supertech BMW S54 Connecting Rod Forged 4340 H-Beam ARP2000 Bolt 3/8in C-C Length 139mm - Set of 6

$1,077.96 $1,347.12

Sale

Supertech

Supertech BMW S54 Dual Valve Spring Kit (w/SEAT-BMS54)

$1,038.78 $1,298.10

Sold out

Supertech

Supertech BMW S54 Dual Valve Spring Kit (w/SEAT-BMS55)

$922.45 $1,152.72

Sale

Supertech

Supertech BMW S54 Manganese Bronze Intake/Exhaust Valve Guide 6mm Stem 12.03mm OD

$9.46 $11.83

Sold out

Supertech

Supertech BMW S54 Manganese Bronze Intake/Exhaust Valve Guide 6mm Stem 12.03mm OD - Set of 12

$113.70 $142.09

Sale

Supertech

Supertech BMW S54B32 E46 87.5mm (+0.5) 32mm CH 12.5:1 CR Piston - Set of 6 (Excl Rings)

$1,137.21 $1,421.10

Sold out

Supertech

Supertech BMW S63 (V8) 32V Black Nitrided Intake Valve - Set of 16 (Use w/ Keeper KPR-6S-7)

$460.54 $575.51

Sold out

Supertech

Supertech BMW S63 V8 32v 29mm(std) x 5.95 x 106mm Inconel Sodium Filled Exhaust Valve - Set of 16

$989.28 $1,236.24

Sold out

Supertech

Supertech BMW S63 V8 Conical Spring Kit - Rate 83lbs (Ex) 80lbs (In)

$1,368.29 $1,709.86

Sale

Supertech

Supertech BMW S65 V8 / S85 V10 Black Nitrided Intake Valve - +3mm Oversize - Single

$32.34 $40.41

Sale

Supertech

Supertech BMW S65 V8 / S85 V10 Inconel Exhaust Valve - +2mm Oversize - Single

$45.66 $57.06

Sale

Supertech

Supertech BMW S65 V8 18.7mm Outer Dia Beehive Spring - Set of 16

$263.76 $329.60

Sale

Supertech

Supertech BMW S65/S84 Beehive Valve Spring - Set of 24 (Use w/Factory Retainer & Base)

$396.36 $495.31

Sale

Supertech

Supertech BMW S65/S84 Beehive Valve Spring - Set of 32 (Use w/Factory Retainer & Base)

$527.89 $659.66

Sale

Supertech

Supertech BMW S65/S85 30.5x 4.95 x 110.2mm Inconel Exhaust Valve - Set of 16

$730.75 $913.17

Sale

Supertech

Supertech BMW S65/S85 35.4x4.97x111.75mm Black Nitrided Intake Valve - Set of 16

$517.43 $646.60

Sold out

Supertech

Supertech BMW S65/S85 Beehive Valve Spring - Set of 40 (Use w/Factory Retainer & Base)

$659.41 $824.02

Sale

Supertech

Supertech BMW S85 V10 Black Nitrided Intake Valve - +3mm Oversize - Set of 20

$646.78 $808.24

Sale

Supertech

Supertech BMW S85 V10 Inconel Exhaust Valve - +2mm Oversize - Set of 20

$913.43 $1,141.46

Sale

Supertech

Supertech BMW/Mini B48 2.0L 82mm Bore 10.2:1 CR Pistons - Set of 4 (Excl Rings)

$737.83 $922.01

Sale

Supertech

Supertech BMW/Mini B48 2.0L 82mm Bore 11.0:1 CR Pistons - Set of 4 (Excl Rings)

$737.83 $922.01

Sale

Supertech

Supertech BMW/Mini B48 29.5x5.95x 100.1mm Sodium Filled Inconel Exht Valve - Set of 8 (Req KPR-6S-7)

$514.71 $643.20

Sold out

Supertech

Supertech BMW/Mini B48 Connecting Rod Forged 4340 H-Beam ARP2000 C-C Length 148.3mm - Set of 4

$918.68 $1,148.02