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The elastomer portion of the pulley helps dampen some noise from the engine accessories (ie
We recommend it for cars up to 50-70% more power(depending on part number)
By inserting these collars in specific subframe locations you can ensure less flex and more accurate suspension feel
Twin-Tube Structure - For Low Resiliency & Securing Sufficient Stroke
These are perfect for those who like to enjoy the weekend autocross
GSC Traditional Exhaust Valve Guide Set - Subaru EJ20 / EJ25 Epic Engineering The elastomer portion of theGSC Power Division makes traditional exhaust valve guides that fit properly, easier to install and shaped to help air flow instead of just copying the OEM design. GSC's Subaru EJ20 EJ25 exhaust valve guides are made from true C67410 Manganese Bronze and turned on a dedicated precision CNC turning center creating some of the tightest tolerances in the industry with the best quality control possible. *Note these guides do not feature a depth stop and
