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allowing fluid to spread quickly through material
Butler Built Air Ducts are used by many top NASCAR competitors
Reducer fits inside 1-3/4" lower radiator hoses which have molded-in reinforcement springs and reduces the I
Can be converted to left or right side air
Allstar Performance Spring Pre-Loader - 3" - 12" Tall Spring SR71760H allowing fluid to spread quicklyPre loader allows use of a softer spring rate that is pre loaded at ride height. The pre loaded spring will have less rate increase as the suspension travels. For example, a 150 lb. in. spring can be preloaded to 400 lbs. at ride height, but still only increases at a rate of 150 lb. in. as suspension travels. The entire unit may also be exchanged with another unit with a different rate spring pre installed to allow spring rate changes without
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