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the factory air cleaner outlet tube is trimmed just after the second bend
stronger braking control
and with no permanent modifications
improved performance
While the 300 Series has exceptional ride characteristics in stock form
2020-2026 GM HD LP-25 Progressive Rate Load Leveler Helper Springs (2518) Power Package the factory air cleaner outletThe Hellwig LP 25 Helper Spring set the standard for all other aftermarket helper springs. Featuring a Fulltime Spring Rate design it is the workhorse of the Hellwig Spring line. This is ideal for fleet applications or vehicles that consistently carry a heavy load day in and day out. Features 1 ton applications Easy Installation Install Kit Required (see LP installation kits) Level Load Capacity up to 2,500lbs Tunable Specifications Color Finish:
