H&R Sway Bar Kit – BMW M235i/M240i (F22, N55/B58), 335i (F30, N55) & 435i/440i (F32/F33/F36, N55/B58) RWD

OVERVIEW

H&R's matched front & rear sway bar set increases torsional stiffness over the factory bars on the rear-wheel-drive six-cylinder F22/F30/F32-family cars, reducing body roll and sharpening turn-in. The front bar is two-hole adjustable, letting you choose between a street-friendly setting and a stiffer track setting.

H&R sells this as a single part number across the RWD M235i/M240i (F22), 335i (F30), and 435i/440i (F32/F33/F36) — these chassis share the same front/rear suspension geometry and subframe mounting points on the six-cylinder RWD platform, so one bar set covers all of them.

SPECS

• 28mm front bar / 20mm rear bar
• Front bar is two-hole adjustable for street/track roll-stiffness tuning
• Larger diameter than the factory bars for reduced body roll
• Includes H&R mounting bushings and hardware
• RWD-specific geometry — not compatible with xDrive models

PARTS INCLUDED

• Front sway bar
• Rear sway bar
• H&R mounting bushings and hardware
• Installation instructions

TECH RESOURCES

Additional Parts Required

• None. H&R includes the mounting bushings and hardware needed for installation.
• A four-wheel alignment is recommended after installation (service, sold separately).

Installation

• H&R general technical & installation information (PDF, hosted on our Shopify) — H&R does not publish a sway-bar-specific install guide separate from this general technical document.

Notes

• RWD-only fitment. H&R sells a separate part (72878-3) for the xDrive/AWD version of these same chassis — confirm drivetrain before ordering.
• This SKU's original bundled-listing variant name only referenced "F22 M235i-M240i / F30 335i," but cross-checked fitment data from Turner Motorsport, ECS Tuning, and Vivid Racing all confirm the same H&R part 72878-2 also covers the RWD F32/F33/F36 435i and 440i; those rows are included below as genuine fitment, not the bundling error the shorter name suggested.
• hrsprings.com's product catalog is JavaScript-only and could not be crawled directly; the part number below is confirmed against this SKU's own Shopify variant field and cross-checked against Turner Motorsport, ECS Tuning, and Vivid Racing listings for the same H&R part.

PART NUMBER

• 72878-2 — Front & Rear Set

VEHICLE APPLICATIONS