Performance Sway Bars & Adjustable End Links
A sway bar (anti-roll bar) connects the left and right suspension via a torsion bar — reducing body roll during cornering and dialing in balance front-to-rear. Larger or stiffer bars stiffen one axle relative to the other, biasing oversteer or understeer. End links transmit the load — adjustable versions let you fine-tune preload and add longevity.
Top Sway Bar & End Link Brands We Carry
Whiteline (Performance, Heavy Duty), Cusco (Standard, Adjustable, Roll Bar), Eibach (Anti-Roll-Kit, Pro-Kit, Sport Sway Bars), Hotchkis (Sport, Sport Sport Pack), Megan Racing, Progress Technology, RSR, Tanabe, Sustec, Steeda, ST Suspensions, Hellwig, Suspension Techniques, Ultra Racing, Beatrush, Stoptech, Energy Suspension (urethane end links), Moog (OE-style).
Popular Vehicle Fitments
Honda Civic Si/Type R, Integra DC2/DC5, S2000, Accord; Toyota Supra A80/A90, GR86, Camry; Nissan 350Z, 370Z, GT-R R35, Skyline R32–R34, Silvia, 240SX; Mazda RX-7, RX-8, Miata MX-5; Subaru WRX/STI, BRZ, Forester; Mitsubishi Evo IV–X, Lancer; BMW E36/E46/E90/E92/F8x; Audi A4/S4 B5–B8; VW Golf MK4–MK8; Ford Mustang, Focus ST/RS.
Balance Tuning — Stiffer Front or Rear?
Most FWD platforms benefit from a stiffer rear bar to combat understeer (Whiteline, Eibach Pro-UTS). RWD platforms benefit from a stiffer front bar to settle rear traction (Cusco, Megan Racing). AWD platforms (Evo, STI, R35 GT-R) typically pair a stiffer front and softer rear for neutrality. Adjustable end links let you fine-tune corner balance, especially on lowered cars where the bar's working angle changes.
Free Bar Sizing Help
Email sales@sp-power.com with vehicle, current suspension setup, and behavior you want to change (less understeer, less body roll, more rotation). We'll spec the right bar diameter and adjustment setting.
SP Engineering — Suspension specialists since 1996.
