Looking for a front and rear sway bar kit for your 2015-2021 Subaru WRX STI Base, Limited? The Whiteline Front and Rear Sway Bar Kit is made for it. In the box: 2 sway bars, 4 links, 4 bushings, 2 braces, 2 lateral locks, 4 spacers, 4 bolts, 20 washers, and 2 nuts. Whiteline”s note for this fit: Contains BSF48Z, BSR49XZ, KLC172 and KLC182. The part number is BSK019. The listing names the Base and Limited trims. It is listed for the VA chassis. Position: front and rear.
A sway bar is a torsion spring that links the left and right wheels. When the body leans, the bar twists and resists, which keeps the car flatter and spreads load more evenly across the tires. A matched front and rear set lets you control not only how much the car rolls but also how its balance feels. Adjustable mounting points let you step the stiffness up or down without changing the bar.
Expect a moderate job of about 4 hours. No alignment is needed afterward. To go with it on the WRX STI, see 14mm Adjustable Front Camber Bolts, Adjustable Front Sway Bar Link, and Rear Subframe Mount Bushing.
Features
Specifications
| Part Number | BSK019 |
| Part Name | Sway Bars |
| Vehicle | 2015-2021 Subaru WRX STI Base, Limited |
| Chassis Code | VA |
| Bushing Material | Polyurethane |
| Sway Bar Adjustable – Front | Yes |
| Sway Bar Diameter – Front | 26 mm |
| Sway Bar Included – Front | Yes |
| Sway Bar Links Included – Front | Yes |
| Grade Type | Performance |
| Installation Difficulty | Moderate |
| Installation Time (hrs) | 4 |
| Kit Contents | 2 Sway Bars, 4 Links, 4 Bushings, 2 Braces, 2 Lateral Locks, 4 Spacers, 4 Bolts, 20 Washers, 2 Nuts |
| Sway Bar Adjustable – Rear | Yes |
| Sway Bar Diameter – Rear | 22 mm |
| Sway Bar Included – Rear | Yes |
| Sway Bar Links Included – Rear | Yes |
| Vehicle Placement | Front and Rear |
| Wheel Alignment Required | No |
| Notes | Contains BSF48Z, BSR49XZ, KLC172 and KLC182 – essential to Activate more grip |


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