H&R Sport Springs – BMW 330i RWD Sedan / 430i RWD Coupe (G20/G22, B46)

OVERVIEW

H&R Sport Springs are H&R's best-selling performance street spring and one of the first steps in suspension tuning. Replacing the factory springs on the rear-wheel-drive G20 330i Sedan and G22 430i Coupe lowers the center of gravity, reduces body roll and closes up the fender gap for a cleaner, more aggressive stance.

The progressive spring rate keeps the ride comfortable in normal driving and firms up as load increases, so the chassis stays composed when the road gets twisty. The kit fits cars with or without the factory sport suspension, including those with adaptive suspension; the drop is greater on cars without the sport suspension because they sit higher from the factory.

H&R springs are made from 54SiCr6 spring steel and shot-peened for long service life, so they will not settle or sag. Every spring is 100% tested before it leaves H&R's ISO9001-certified facility in Germany.

SPECS

• 330i Sedan without sport suspension: approx. 1.6" front / 1.5" rear lowering
• 330i Sedan with sport suspension: approx. 1.1" front / 1.1" rear lowering
• 430i Coupe without sport suspension: approx. 1.6" front / 1.2" rear lowering
• 430i Coupe with sport suspension: approx. 1.1" front / 1.0" rear lowering
• Compatible with factory adaptive suspension
• Progressive spring rate design
• Material: 54SiCr6 spring steel
• Shot-peened to increase service life
• Will not settle or sag
• 100% tested before leaving the production facility
• TÜV and ISO9001 certified quality assurance
• Manufactured in-house by H&R in Germany

PARTS INCLUDED

• H&R Sport Spring set — front and rear springs
• Complete kit as supplied by H&R Springs; see the installation instructions for the full bill of materials.

TECH RESOURCES

Additional Parts Required

• None. H&R Springs specifies no additional hardware for this spring kit.
• Four-wheel alignment after installation (installer-supplied service) — required any time ride height is changed.
• Professional installation — H&R specifies that its springs be installed by professional suspension mechanics only.
• Spring compressor (installer-supplied tool) — required to disassemble the factory struts on a spring-only kit.

Installation

• H&R Springs Technical & Installation Information (PDF) — installation requirements, ride-height measurement procedure, bumpstop trimming table and alignment notes.
• H&R Warranties & Claims (PDF) — official H&R warranty terms, coverage periods and claim procedure.

Notes

• Rear-wheel-drive only. xDrive cars, the M340i, M440i, 430i Convertible and 430i Gran Coupe take 28662-2.
• Confirm your exact model, drivetrain and suspension type with Speed Logic before ordering.

PART NUMBER

• 28662-1

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