Until now, people that chose to use the factory Civic EP3 Idler pulley have encountered problems with over-tightened or loose accessory belts. This is because the factory EP3 idler is fixed and not adjustable.
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For K20 Swap EP3 Idler Pulley Belt Serpentine Belt 7PK1283 For Honda Civic Si
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For Honda Civic RSX K20 Swap Adjustable EP3 Idler Pulley Belt Kit Tensioner
K Series Swap EP3 Idler Pulley Belt Tensioner Kit Silver For Honda Civic RSX K20
