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BMW M3 S54 Intake valve 35x5.97x117.50mm/ SS/Blk. Nitrided/Stk.size ...
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T#:641912
Part#: BMIVN-1040
In Stock
$ 32.99

This product was last offered at the strikethrough price on
05-03-2026

$ 28.99 USD
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$ 32.99

This product was last offered at the strikethrough price on
05-03-2026

$ 28.99 USD
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BMW M3 S54/ Exhaust valve 30.5x5.95x126.10mm/ SS/Blk. Nitrided/Stk.si...
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T#:641911
Part#: BMEVN-1040
Ships in 5 Business Days
$ 29.99 USD
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BMW M50/52 Single Groove Intake valve 33x5.97x106.10mm/ SS/Blk. Nitri...
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T#:3428565
Part#: BMIVN-1030S
Ships in 8 Business Days
$ 32.99 USD
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BMW S54 Forged Connecting Rod/ 4340 alloy/ H beam/ ARP 3/8" - 20...
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T#:36337145
Part#: CR-BMS54-H139
Ships in 8 Business Days
$ 194.99 USD
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Valve Stem Seal - Set Of 16 - Upgraded Viton Seals
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T#:29931717
Part#: VSI-MIN-R56KT
In Stock
$ 34.99 USD
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BWM S63 V8 Conical spring kit - 83lbs @35.7mm (Ex) 80@ 36mm (in) - 16...
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T#:51110151
Part#: SPRK-BMS63B
Ships in 8 Business Days
New Item
$ 1,522.99 USD
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84.00mm Piston Ring Set - Single Piston - 1x3.10/1.2x3.50/2.8x3.10mm,...
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Supertech - Corporate Logo
T#:44021159
Part#: R84-GNH8400
In Stock
$ 28.99

This product was last offered at the strikethrough price on
05-15-2026

$ 25.99 USD
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$ 28.99

This product was last offered at the strikethrough price on
05-15-2026

$ 25.99 USD
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Valve Stem Seal - Priced Each - Upgraded Viton Seals
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T#:29931716
Part#: VSI-MIN-R56
In Stock
$ 2.99 USD
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87.50mm Piston Ring Set - Single Piston - 1x3.30/1.2x3.60/2.8x3.10mm ...
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T#:44021158
Part#: R87.5-GNH8750
In Stock
$ 28.99

This product was last offered at the strikethrough price on
05-03-2026

$ 25.99 USD
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$ 28.99

This product was last offered at the strikethrough price on
05-03-2026

$ 25.99 USD
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Supertech BMW S52 Steel Spring Retainer - Set Of 24
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T#:20056517
Part#: RET-HBK-ST-24
In Stock
7% off MSRP $ 281.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 261.99 USD
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7% off MSRP
$ 281.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 261.99 USD
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Rev higher and drive faster with this performance steel spring set.
Titanium Retainers - Set Of 8 - BMW B48
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T#:49023066
Part#: RET-BMB48-TE-8
In Stock
New Item
$ 172.99

This product was last offered at the strikethrough price on
05-03-2026

$ 157.99 USD
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$ 172.99

This product was last offered at the strikethrough price on
05-03-2026

$ 157.99 USD
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Valve Stem Seals "Viton Seals" - Priced Each
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T#:50934290
Part#: VSI-M6E
In Stock
New Item
$ 2.99

This product was last offered at the strikethrough price on
05-03-2026

$ 1.99 USD
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$ 2.99

This product was last offered at the strikethrough price on
05-03-2026

$ 1.99 USD
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Valve Stem Seals "Viton Seals" - Set of 8
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T#:50934530
Part#: VSI-M6E-8
In Stock at Vendor
New Item
$ 16.99 USD
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Supertech BMW B58 82mm Bore 36cc 11:1 CR Pistons - Set Of 6 (Excl Rin...
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T#:53820942
Part#: P4-MINB48-82-CR1
In Stock at Vendor
New Item
$ 1,106.99 USD
$ 1,106.99 USD
MINI R55 to R61 Titanium Retainer - Set Of 16
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Supertech - Corporate Logo
T#:31324212
Part#: RET-MC56/T1KT
Ships in 5 Business Days
$ 319.99 USD
Free Shipping on orders $49 and up

Upgrade your MINI's performance and durability with the Titanium Retainer Set. Specifically designed for MINI R55 to R61 models, this set of 16 titanium retainers offers superior strength and lightweight construction compared to standard components. Engineered to withstand high stress and extreme conditions, these retainers enhance reliability and performance.

  • Superior Strength: Titanium construction provides enhanced durability and resistance to stress.
  • Lightweight Design: Reduces overall weight, improving vehicle dynamics.
  • Enhanced Performance: Ideal for high-performance applications and demanding driving conditions.
  • Direct Fit: Engineered specifically for MINI R55 to R61 models for easy installation.

These titanium retainers are a perfect upgrade for MINI enthusiasts seeking improved performance and longevity.

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Valve Stem Seals "Viton Seals" - Priced Each - Set Of 16 ...
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T#:50934587
Part#: VSI-M6EKT
Ships in 5 Business Days
New Item
$ 32.99 USD
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Valve Stem Seal Exhaust Side - Priced Each
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T#:9222684
Part#: VSI-BM60-E
Ships in 5 Business Days
$ 2.99 USD
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Supertech 7mm Exhaust Valve Stem Seal - Viton - BMW S14 S38
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T#:641012
Part#: VS-VW7E
Ships in 5 Business Days
$ 1.99 USD
Free Shipping on orders $49 and up
Looking to replace your valve stem seals due to leaks, cracks, splits, or even during an upgrade of your camshafts, valve springs, or valves? Supertech valve stem seals are the way to go! This cheap but effective seal replaces the stock BMW seals that are notoriously prone to issues due to heat cycles and chemicals which cause the seals to become weak and brittle. Supertech seals offer a significantly longer life span and are resistant to both heat and chemicals thanks to their use of Viton or Polyacrylic construction (dependant on valve type). That means less time in the garage and more time on the street or track! These seals are also great for anyone who is looking to upgrade to dual valve springs thanks to the seal's overall thinner outer diameter! Guide OD: 9.8mm/.385" Seal OD: 13.2mm/.520"
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Valve Stem Seal Exhaust Side - Viton Seals - Set Of 8
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T#:50934389
Part#: VSI-BM60-EKT
Ships in 5 Business Days
New Item
$ 16.99 USD
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Valve Stem Seal Intake Side - Priced Each
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T#:9222685
Part#: VSI-BM50-I
Ships in 6 Business Days
$ 11.99

This product was last offered at the strikethrough price on
01-14-2026

$ 1.99 USD
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$ 1.99 USD
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Valve Guide Intake & Exhaust - Oversized - Priced Each
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Supertech - Corporate Logo
T#:15213946
Part#: GDE-MIN-R56-0S
Ships in 8 Business Days
$ 10.99 USD
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Valve Guide Intake & Exhaust - Oversized - Set Of 16
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T#:50934488
Part#: GDE-MIN-R56-0SKT
Ships in 8 Business Days
New Item
$ 167.99 USD
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Titanium Valve Retainers
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T#:18766679
Part#: RET-BMS65-BE1-32
Ships in 8 Business Days
9% off MSRP $ 721.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 654.99 USD
9% off MSRP
$ 721.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 654.99 USD
Forged Pistons (Set Of 4) - 82.50mm (0.5mm+) P4-MINB48-825-CR11-4 ...
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T#:29234334
Part#: P4-MINB48825CR11
Ships in 8 Business Days
$ 798.99 USD
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Performance Valve Springs Kit - Single Groove SPRK-TS1015-MC2 ...
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T#:40545944
Part#: SPRK-TS1015/MC-2
Ships in 8 Business Days
$ 789.99 USD
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Exhaust Valve - Priced Each - head 25.20(+2.3mm)
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T#:54388381
Part#: MCEVN-1010FS
Ships in 8 Business Days
New Item
$ 28.99 USD
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Factory valves can stretch, cup, or drop a head entirely under extreme stress. Supertech’s advanced metallurgy and precision engineering provide the peace of mind required to turn up the boost, stretch the powerband, and dominate the track.
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Conical Spring Kit
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T#:22064608
Part#: SPRKFE20N54BE2
Ships in 8 Business Days
$ 965.99 USD
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Single Valve Spring Kit
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T#:36100117
Part#: SPRK-A2416N-V6
Ships in 8 Business Days
$ 651.99 USD
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BMW S54 Dual valve spring kit:82lbs @ 41.00mm (24)SPR-2521/2+(24)RET-...
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T#:32450118
Part#: SPRK-2521-2BM-ST
Ships in 8 Business Days
$ 1,026.00 USD
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BMW S65 (V8) / S85(V10) Exhaust valve / 30.5mm(std) x 4.95 x 110.2mm ...
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T#:50136732
Part#: BMEVI-1065-16
Ships in 8 Business Days
New Item
$ 812.99 USD
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6mm Single Valve Keeper - Priced Each
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T#:14816649
Part#: KPR-6S/7
Ships in 8 Business Days
$ 1.99 USD
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BMW S65 (V8) / S85(V10) Intake valve / 35.4mm(std) x 4.97 x 111.75mm ...
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T#:50136733
Part#: BMIVN-1065-16
Ships in 8 Business Days
New Item
$ 575.99 USD
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High Performance Titanium Valve Springs With Titanium Retainers ...
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T#:21078442
Part#: SUPHPVSKB5884
Ships on Jun 19, 2026
$ 1,308.99 USD
$ 1,308.99 USD