{"product_id":"qa1-proma-star-double-adjustable-coil-over-shock-bjgm-dd303","title":"QA1 Proma Star Double-Adjustable Coil-Over Shock | 9-1\/2 in Compressed, 12-3\/4 in Extended, Bearing (Eye-B\/Eye-B) | DD303","description":"\u003cp\u003eThe QA1 Proma Star Coil-Over brings coil-over shock performance to a wide range of custom and non-direct-fit suspension builds. This double-adjustable shock has a compressed height of 9-1\/2 inches and an extended height of 12-3\/4 inches, with bearing eyelet top and bottom (Eye-B\/Eye-B). Independent compression and rebound adjustment let ride quality be tuned for the street, drag strip, and road course. The included hardware kit provides quick ride height adjustment, and a correctly rated 2.5 inch spring is added separately to complete the coil-over. QA1 Proma Star shocks are made in the USA, dyno tested, and backed by a Limited Lifetime Warranty.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSeries: QA1 Proma Star\u003c\/li\u003e\n\u003cli\u003eType: Double-Adjustable coil-over shock\u003c\/li\u003e\n\u003cli\u003eCompressed height: 9-1\/2 in\u003c\/li\u003e\n\u003cli\u003eExtended height: 12-3\/4 in\u003c\/li\u003e\n\u003cli\u003eMounting: Bearing (Eye-B\/Eye-B)\u003c\/li\u003e\n\u003cli\u003eSpring seat: 2.5 in\u003c\/li\u003e\n\u003cli\u003eMade in USA, dyno tested\u003c\/li\u003e\n\u003cli\u003eLimited Lifetime Warranty\u003c\/li\u003e\n\u003cli\u003ePart number: DD303\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch5\u003eWhat is the compressed and extended length of the QA1 DD303 shock?\u003c\/h5\u003e\u003cp\u003eThe QA1 DD303 Proma Star shock has a compressed height of 9-1\/2 inches and an extended height of 12-3\/4 inches.\u003c\/p\u003e\u003ch5\u003eDoes this QA1 Proma Star coil-over shock include a spring?\u003c\/h5\u003e\u003cp\u003eNo. The shock uses a 2.5 inch coil-over spring that is purchased separately in the correct length and spring rate for the application.\u003c\/p\u003e\u003ch5\u003eWhat is the difference between single and double adjustable valving?\u003c\/h5\u003e\u003cp\u003eA single-adjustable shock changes overall compression and rebound together with one knob, while a double-adjustable shock adjusts compression and rebound independently for finer tuning.\u003c\/p\u003e\u003ch5\u003eWhere are QA1 Proma Star shocks made?\u003c\/h5\u003e\u003cp\u003eQA1 Proma Star shocks are made in the USA, dyno tested, and covered by a Limited Lifetime Warranty.\u003c\/p\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is the compressed and extended length of the QA1 DD303 shock?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The QA1 DD303 Proma Star shock has a compressed height of 9-1\/2 inches and an extended height of 12-3\/4 inches.\"}}, {\"@type\": \"Question\", \"name\": \"Does this QA1 Proma Star coil-over shock include a spring?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No. The shock uses a 2.5 inch coil-over spring that is purchased separately in the correct length and spring rate for the application.\"}}, {\"@type\": \"Question\", \"name\": \"What is the difference between single and double adjustable valving?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"A single-adjustable shock changes overall compression and rebound together with one knob, while a double-adjustable shock adjusts compression and rebound independently for finer tuning.\"}}, {\"@type\": \"Question\", \"name\": \"Where are QA1 Proma Star shocks made?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"QA1 Proma Star shocks are made in the USA, dyno tested, and covered by a Limited Lifetime Warranty.\"}}]}\u003c\/script\u003e","brand":"QA1","offers":[{"title":"Default Title","offer_id":42720388546608,"sku":"BJGM_DD303","price":334.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/909bcaec0b6ab_203d9834-7370-40d5-90de-f998d95ac738.jpg?v=1769097319","url":"https:\/\/berryperformancesales.com\/products\/qa1-proma-star-double-adjustable-coil-over-shock-bjgm-dd303","provider":"Berry Performance Sales","version":"1.0","type":"link"}