608 - RSS Underdrive Pulleys


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Part #: 608
Notes: The RSS Harmonic Dampened Lightweight Underdrive Pulley is made from 6061-T6 aluminum
Offers improved HP & TQ by reducing drag from the power steering pump, A/C, water pump and alternator
A must for any street or track enthusiast
Works on 997 3.8L Porsche models
Installation tool (wrench) included
Dyno Image shows HP & TQ gain on 2005 997.1 Carrera S:
Baseline Dyno Run Mods: OEM Crank Pulley, OEM Software, Cargraphic Headers, Hi flow 200 Cell Cats, and Medium Sound Cargraphic Sport Mufflers
Modified Dyno Run: Added RSS Pulley (Part #608) to baseline car with existing mods:
+16 HP / +8 ft lbs TQ
MADE IN USA. We recommend using the appropriate length belt RSS # 6PK which can also be purchased on our website.
Your Price: $375.00

All Fitments

PORSCHE
Year Model SubModel Cylinders Liter Aspiration Eng Desg. Fuel Notes
2005 - 2008 911 CARRERA 4S
CARRERA S
TARGA 4S
ALL ALL ALL ALL ALL Fits 997 mk1 3.8L Models Only. Harmonic Dampened. Call for Assistance.

Product Description

The RSS Harmonic Dampened Lightweight Underdrive Pulley is made from 6061-T6 aluminum; Offers improved HP & TQ by reducing drag from the power steering pump, A/C, water pump and alternator; A must for any street or track enthusiast; Works on 997 3.8L Porsche models; Installation tool (wrench) included; Dyno Image shows HP & TQ gain on 2005 997.1 Carrera S:; Baseline Dyno Run Mods: OEM Crank Pulley, OEM Software, Cargraphic Headers, Hi flow 200 Cell Cats, and Medium Sound Cargraphic Sport Mufflers; Modified Dyno Run: Added RSS Pulley (Part #608) to baseline car with existing mods:; +16 HP / +8 ft lbs TQ ; MADE IN USA. We recommend using the appropriate length belt RSS # 6PK which can also be found on our website.