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BMW Z3 (1996-2002)

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S54 VAC Harmonic SuperDamper By ATI - Standard Size Crank Pulley ...

T#:639878

Part#: VAC-HPCDK-S54-ST

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$ 1,049.99 USD

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If you are breaking crankshafts and oil pumps, the cause may be a mystery to you as it has been to many of our customers. We know that controlling the harmonic resonance of the BMW 6 is highly important as RPMs rise, but the ideal configuration of the inline-6 motor makes even experienced engine builders overlook some fundamental principals of engine harmonics that can be destructive. ATI Performance Products has partnered with VAC Motorsports to develop new dampers for BMW 2.5L, 2.8L, 3.0L and 3.2L straight-6 engines found in the E36 and E46 M3, E9X and E6X, as well as newer Z3s and Z4s. These dampers eliminate crankshaft harmonic vibration, which allows the engine to produce more horsepower and torque, while also reducing internal engine wear at the same time. Broken oil pumps and timing chains will be a thing of the past! When used with a VAC accessory pulley, these dampers are a direct replacement over the OEM balancer. They have a 7” outer diameter and include OEM style timing alignment tabs. BMW enthusiasts should know that all ATI Super Dampers exceed SFI 18.1 Safety Certification and are approved for competition. The advantages of the ATI SuperDamper include eliminating vibration issues with inline 6 engines equipped with lightweight clutch and flywheel assemblies, reduced bearing, engine accessories, oil pump wear, and compatibility with underdrive pulleys. Made in the USA.

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VAC Harmonic SuperDamper By ATI - M50/S50/M52/S52

For use only with OBD1 engine management systems. For use only with OBD1 engine management systems. Will not work with S50B30 & S50B32 Eu...

T#:639877

Part#: VAC-HPCD-M50-TR

Ships on Sep 18, 2026

$ 1,139.99 USD

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$ 1,139.99 USD

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If you are breaking crankshafts and oil pumps, the cause may be a mystery to you as it has been to many of our customers. We know that controlling the harmonic resonance of the BMW 6 is highly important as RPMs rise, but the ideal configuration of the inline-6 motor makes even experienced engine builders overlook some fundamental principals of engine harmonics that can be destructive. ATI Performance Products has partnered with VAC Motorsports to develop new dampers for BMW 2.5L, 2.8L, 3.0L and 3.2L straight-6 engines found in the E36 and E46 M3 as well as newer Z3s and Z4s. These dampers eliminate crankshaft harmonic vibration, which allows the engine to produce more horsepower and torque, while also reducing internal engine wear at the same time. Broken oil pumps and timing chains will be a thing of the past! When used with a VAC accessory pulley, these dampers are a direct replacement over the OEM balancer. They have a 7” outer diameter and include OEM style timing alignment tabs. BMW enthusiasts should know that all ATI Super Dampers exceed SFI 18.1 Safety Certification and are approved for competition. The advantages of the ATI SuperDamper include eliminating vibration issues with inline 6 engines equipped with lightweight clutch and flywheel assemblies, reduced bearing, engine accessories, oil pump wear, and compatibility with underdrive pulleys. Kit includes: Damper Lightweight VAC Billet Crankshaft Pulley Mounting and Installation Hardware Trigger Ring for OBD1 systems Note: Will NOT work with S50B30 & S50B32 Euro Engines, For Street/Track cars with Air Conditioning, the Additional A/C Pulley Option is REQUIRED as the OE A/C pulley is not compatible. The additional mounting and installation hardware is also included. Made in the USA

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HJS Exhaust Gasket Ring - E36, E46, Z3, Z4

T#:388461

Part#: 18111723379

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$ 10.99 USD

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Seals the mid-pipe to the muffler

E38 Z3M Rear Exhaust Hanger

T#:17937421

Part#: 18211704198

Back Ordered

$ 17.99

This product was last offered at the strikethrough price on
05-07-2026

$ 16.99 USD

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$ 16.99 USD

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Fix your sagging or broken rear exhaust hanger to make sure your tailpipes are sitting correctly in your rear diffuser. 2 required per vehicle for E38, 4 for Z3m, and 6 for Z8! Broken or sagging exhaust hangers can lead to much larger issues such as premature failure of the flex joints, pulling on the o2 sensor wires and overall much more expensive components needing to be replaced. The HJS exhaust hangers a premium and price conscious alternative to this specific exhaust hanger found on just the Z3M, E38 and Z8's.

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BMW Z3 (1996-2002)

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S54 VAC Harmonic SuperDamper By ATI - Standard Size Crank Pulley ...

VAC Harmonic SuperDamper By ATI - M50/S50/M52/S52

HJS Exhaust Gasket Ring - E36, E46, Z3, Z4

E38 Z3M Rear Exhaust Hanger

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