70A durometer rating - slightly stiffer than stock for improved shifting quality and driveline performance. Constructed of 304 stainless steel with bonded and constrained polyurethane.
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80A durometer rating - perfect for aggressive enthusiast driving. Constructed of 304 stainless steel with bonded and constrained polyurethane.
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Increase performance and durability without sacrificing comfort - an ECS Tuning exclusive!
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Designed for track use to eliminate deflection and drive line slop
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Brand:
ES#:
3438526
Mfg#:
017730TMS03
In Stock
ON SALE!
SAVE 27%
$113.99
This product was last offered at the strikethrough price on 05-02-2026
Unlike simple inserts, these are complete re-engineered replacements designed to outperform and outlast the BMW factory units.
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