OVERVIEW
The H&R Premium Performance Coil Over is the top of the H&R coil over range for the E82/E88 1 Series. It is height adjustable, so ride height is set on the car via the threaded bodies and spring seats instead of being fixed by the spring, and it uses H&R progressive-rate springs matched to custom-valved dampers.
What separates it from the Street Performance kit is the front strut: an ultra-lightweight aluminum body with a black hard-anodized finish, which H&R rates at 30–40% lighter than the stock component. Less unsprung weight lets the suspension follow the road surface more closely, which shows up as better grip and better body control rather than just a lower stance. On the 128i and 135i the adjustment range is roughly 1.2–2.0 inches at the front and 1.0–2.0 inches at the rear; the factory-lowered 135is has a much narrower window.
H&R builds every spring in-house in Germany. The wire is a special 54SiCr6 spring steel, cold-wound and then shot-peened to increase service life by more than 200%, so the spring resists settling and sagging over time. Each spring is 100% tested before it leaves H&R's ISO 9001-certified plant, and the range carries TÜV approval.
SPECS
- Approx. front lowering range: 1.2–2.0" (E82/E88 128i / 135i), 0.25–1.0" (E82 135is)
- Approx. rear lowering range: 1.0–2.0" (E82/E88 128i / 135i), 0.20–1.0" (E82 135is)
- Height adjustable via threaded shock bodies and spring seats
- Ultra-lightweight aluminum front struts, 30–40% lighter than stock
- Black hard-anodized finish on the aluminum components
- H&R progressive-rate springs matched to custom-valved dampers
- Progressive spring rates, increased approximately 10–20% over stock
- Cold-wound from 54SiCr6 spring steel
- Shot-peened to increase service life by more than 200%
- Will not settle or sag
- Every spring 100% tested before leaving H&R's ISO 9001-certified production facility in Germany
- TÜV and ISO 9001 quality assurance certification
PARTS INCLUDED
- Complete kit as supplied by H&R Springs; see the installation instructions for the full bill of materials.
TECH RESOURCES
Required Extras
- Four-wheel alignment. H&R requires the alignment to be checked and reset after installation, and again after any later ride-height change.
- Professional installation. H&R states its springs and suspensions should be installed by professional suspension mechanics only.
- Spanner / C-wrenches for the threaded bodies and locking collars, to set and lock ride height. Installer-supplied.
- Bump-stop trimming. Check the trim chart in the H&R Technical Information Sheet linked below for this kit number before assembly.
- Confirm your car is not fitted with EDC / adaptive dampers. H&R does not list this kit for EDC-equipped cars.
- Optional: replace worn strut mounts and dust boots while the struts are out.
Installation
- H&R Technical Information Sheet (PDF) — ride-height measurement procedure, spring orientation and markings, bump-stop trim chart by kit number, and post-installation alignment requirements.
- H&R technical FAQ and installation guidance (hrsprings.com) — manufacturer installation questions and answers.
- H&R does not publish a vehicle-specific printed installation manual for this kit; installation follows the factory BMW suspension service procedure. Contact Speed Logic if you need help sourcing the procedure.
PART NUMBER
- 39211-11 — H&R Premium Performance Coil Over kit, BMW 1 Series E82/E88
VEHICLE APPLICATIONS
| Make / Model | Chassis | Engine | Years |
|---|---|---|---|
| BMW 1 Series 128i Coupe | E82 | N52 3.0L I6 | 2008–2013 |
| BMW 1 Series 128i Convertible | E88 | N52 3.0L I6 | 2008–2013 |
| BMW 1 Series 135i Coupe | E82 | N54 3.0L Twin-Turbo I6 | 2008–2013 |
| BMW 1 Series 135i Coupe | E82 | N55 3.0L Turbo I6 | 2008–2013 |
| BMW 1 Series 135i Convertible | E88 | N54 3.0L Twin-Turbo I6 | 2008–2013 |
| BMW 1 Series 135i Convertible | E88 | N55 3.0L Turbo I6 | 2008–2013 |
| BMW 1 Series 135is Coupe | E82 | N55 3.0L Turbo I6 | 2013 |
Lowering figures are H&R approximations and vary with the car's options, wheel and tire package and starting ride height. Fitment for a specific coupe (E82) or convertible (E88) build should be confirmed with Speed Logic before ordering.