Supertech for BMW Z Series E85/6 (2003-2008)

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Supertech BMW S54 Dual VALVE Spring Kit - E46 M3 Z3M Z4M
Supertech BMW S54 Dual VALVE Spring Kit - E46 M3 Z3M Z4M
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Supertech - Corporate Logo
T#:7403169
Part#: SPRK-2521-2BM-T1
In Stock
$ 1,050.99

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

$ 919.99 USD
Limited Qty Sale
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$ 1,050.99

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

$ 919.99 USD
Limited Qty Sale
Free Shipping
Add to Wish List
Dual valve spring kit to be used with triple groove valves and OEM locks.
Supertech High Performance Valve Spring Set - E46 M3, MZ3 (S54), MZ4
Supertech High Performance Valve Spring Set - E46 M3, MZ3 (S54), MZ4 ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Supertech - Corporate Logo
T#:11760
Part#: TMS11760
Ships in 8 Business Days
$ 1,038.99 USD
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$ 1,038.99 USD
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Add to Wish List
For BMW's with S54 engines, these valve springs are made with premium Superclean Chrome Silicon Vanadium Steel alloy for high performance and durability at high rpms, with better memory. These are extremely high quality, offered at the best price.

Computer designed to ensure that the wire stress levels do not overpass the limits of stress defined in the diagrams of fatigue for long durability under extreme racing conditions. Computer software allows Supertech to make sure that the harmonics are well under control.

The retainers are manufactured with high quality military certified Titanium alloy, CNC machined for a tight fit that will ensure a long durability.

This item fits the following BMWs:
2001-2006 E46 BMW M3
2001-2002 Z3 BMW M Roadster M Coupe
2006-2008 E85 BMW Z4 M Roadster M Coupe
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