Red lowered early Mazda RX-8 coupe on graphite wheels in a circuit paddock

Mazda RX‑8 SE3P.
The coilover guide.

Shop the coilovers

Give the RX-8 room to work. Identify its original suspension, choose a usable height and match the damper package to its road miles or circuit preparation.

Which RX‑8 SE3P do you have?11 listed kits · 5 brandsReviewed 4 November 2026

A rotary coupe with room for four.

An RX-8 on tired bushes and mismatched tyres needs more than a lower spring seat. Inspect the suspension first, then decide what you want to change. A road car needs enough travel and ground clearance for its usual routes; a developed circuit car needs a spring and damping specification that suits its tyres and operating weight.

Use the build date and original market alongside the registration. Early cars, the facelift R3 and special editions can start with different suspension equipment. Record what is fitted now, especially if a previous owner has already replaced the dampers or springs.

Mazda launched the RX-8 in 2003 with its RENESIS twin-rotor engine, rear-wheel drive and rear-hinged back doors. The compact front-midship engine layout left room for four seats within a short coupe body. Double-wishbone front suspension and a multi-link rear gave the chassis its own setup requirements.

The UK PZ was developed with Prodrive. Mazda’s brochure specifies Bilstein dampers, Eibach springs and a 15 mm reduction from the original car. That lower starting point matters when discussing another kit’s quoted lowering range. A replacement should be matched to the actual PZ equipment, not ordered from its badge alone.

Mazda revised the RX-8 in 2008, changing suspension components and body details. The Japanese Type RS had Bilstein dampers; the R3 also used Bilstein suspension in Mazda’s later US specifications. Those market and grade names need identifying separately when choosing parts for a UK car or import.

Production ended in June 2012. An early road car and a later RX-8 prepared for circuit use can now have very different wheels, arms and mounting parts. Keep those changes in the specification you give the fitter, rather than relying on the model year to describe the whole car.

Model history: Mazda RX-8 launch speech, April 2003Original Mazda UK PZ brochureMazda 2008 Japanese refreshMazda original rotary timeline.

Start with your RX‑8 SE3P.

Match the model year, engine and body style before comparing brands.

Red early Mazda RX-8 on graphite wheels beside a stone wall

Early road cars

Start with the exact year and original suspension. The current UK TEIN rows name 2004 to 2009; the BC shop listing names 2003 to 2008. Bilstein and AST/MOTON have their own wider periods and fitting conditions. Match the selected part, including any axle-rating limit.

Find these kits
Blue facelift Mazda RX-8 R3-style car outside pit garages

Facelift and R3

Confirm the grade, build date and existing Bilstein or replacement hardware. A 2009 registration can sit at a supplier’s application boundary. Later Japanese or US TEIN entries do not extend its UK row automatically.

Check my facelift car
Grey early Mazda RX-8 with a PZ-style rear spoiler and dark multi-spoke wheels

PZ and other special editions

Tell us the edition and what remains of its original setup. The Prodrive-developed PZ started with its own dampers and shorter springs. Agree the new height against the correct reference and confirm the mounting parts for the replacement.

Discuss my edition
White modified Mazda RX-8 on bronze wheels outside a garage

Imports and circuit projects

For an import, include the chassis plate and original market. For a stripped or caged car, add the tyres, operating weight and suspension-arm changes. Shared MX-5/RX-8 part references still need the springs and mounts specified for the actual car.

Discuss my RX-8

What do you want
from the car?

Road miles, circuit weekends or a car built around the lap. Start with how you drive.

Kit starts from£936.00inc. VAT · TEIN FLEX Z

A defined spring package for a UK-listed early car.

Read the buying advice

TEIN FLEX Z VSM58-C1SA3 is the road example for its listed UK 2004 to 2009 application. Its twin-tube dampers have a combined 16-position compression and rebound adjustment. TEIN specifies rubber upper mounts, with 8 kgf/mm front and 5 kgf/mm rear springs. Start within the recommended height range and leave enough clearance for the routes you drive.

  • Twin-tube dampers
  • 8 / 5 kgf/mm listed springs
  • Rubber upper mounts
View our recommended kit
Kit starts from£1,500.00inc. VAT · TEIN MONO SPORT

Monotube dampers with a different spring specification.

Read the buying advice

TEIN MONO SPORT GSM56-71SS3 is the mixed-use example, again within its UK 2004 to 2009 application. It uses monotube dampers and 10 kgf/mm front, 7 kgf/mm rear springs, with rubber upper mounts and combined 16-position damping adjustment. Agree a starting setup, record the tyre pressures and change one setting at a time.

  • Monotube construction
  • 10 / 7 kgf/mm listed springs
  • Combined damping adjustment
View our recommended kit
Kit starts from£4,404.00inc. VAT · AST 5300 Motorsport

Separate controls for a car developed around its tyres.

Read the buying advice

AST 5300 RAC-M1205S is the listed RX-8 competition example. It separates rebound from low- and high-speed compression adjustment, with the compression controls on remote reservoirs. Specify the springs and RX-8 mounting hardware with the supplier, then plan hose routing and access. The adjustment names describe damper movement; they are not vehicle-speed settings.

  • Three-way damping adjustment
  • Remote compression reservoirs
  • Application-specific springs and mounts
View our recommended kit

The spring surrounds the rear damper.

A spring surrounding a damperA fixed component diagram. The coil spring surrounds the shock absorber and rests on its spring seats. It does not show vehicle dimensions, mounting hardware or suspension movement.Coil springDamperSpring seat

The rear spring surrounds the damper on a standard Mazda RX‑8 SE3P.

Component layout only. Mounts, dimensions and adjusters vary by kit.

Mazda’s RX-8 workshop drawing shows the rear coil spring and shock absorber together in one assembly. The multi-link arms guide the wheel below it. This is a spring-around-damper arrangement, so there is no separate rear spring seat to choose as an alternative layout.

Confirm which upper seats, bushes and stops the selected kit supplies or reuses. Follow that kit’s height and preload instructions, and check access to its adjuster with the boot trim fitted. A generic camber-plate photograph does not establish the mount contents for this wishbone and multi-link car.

Understand height and preload
Red early Mazda RX-8 on an alignment rack with wheel-carried optical targets

Set the height, then measure the car.

Inspect the arms, joints and bushes before alignment, including adjustment hardware that may have seized with age. Give the fitter wheel widths, offsets, spacers and tyre sizes. Check inside the arch and beside the suspension through movement, with the intended passengers or circuit load accounted for.

Let the car settle at the agreed height before the final alignment. Keep the figures with the damper settings and spring details. A circuit setup should also record tyre condition and pressures, so a change in grip is not automatically blamed on the dampers.

Wheels and clearance

An 18- or 19-inch diameter alone cannot establish clearance. Width, offset, spacers and the tyre’s actual shape also matter. Check the inner damper gap and the outer arch at the working height, including movement with the steering turned.

Bushes and adjustment hardware

Inspect play in the wheel-guiding links and the condition of their mounting points before choosing firmer springs. Have the alignment adjusters checked while the car is apart. A new kit cannot make an insecure or seized joint work correctly.

Tyres and spring selection

Choose tyres for the use and conditions, then discuss the spring package around them. For a caged or stripped RX-8, supply its operating weight and loading. A higher spring-rate number by itself does not establish a better road or track setup.

Mounts, reservoirs and access

Ask which original seats and bushes are retained. Where reservoirs are supplied, agree secure mounting and hose routing away from moving or hot parts. Check how the adjusters will be reached after the trim is refitted.

The current RX‑8 SE3P range.

Compare the controls and hardware included in each range.

TEIN

FLEX Z and MONO SPORT have distinct spring rates and damper construction. The current UK rows name 2004 to 2009, with rubber upper mounts. Both indicate optional EDFC compatibility; confirm the required motors, controller and installation access separately.

View TEIN RX‑8 SE3P kits

Bilstein

B14 has fixed damping; B16 PSS9 has nine combined compression/rebound positions. The retained manufacturer RX-8 application lists 30 to 50 mm lowering, front axle rating up to 860 kg and rear up to 1,030 kg. Follow the part’s current fitting documents and original-suspension conditions.

View Bilstein RX‑8 SE3P kits

BC Racing

The shop’s N-05 listing names 2003 to 2008 and has BR, ER and ZX choices. Confirm the exact selected configuration, springs and mounts. The manufacturer’s broader 2003 to 2012 entry does not silently extend that shop listing’s stated period.

View BC Racing RX‑8 SE3P kits

AST

RX-8 FE appears explicitly beside the M1205 references in the manufacturer workbook. The range includes rebound-adjustable road packages, a two-way 5200 and three-way 5300. Confirm RX-8-specific springs and mounts even where a part number is shared with the MX-5 NC.

View AST RX‑8 SE3P kits

MOTON

The RX-8 row names M 521 002S two-way and M 521 003S three-way packages. The difference is the available compression control. Both need the actual spring, mount and reservoir installation specification agreed for the car.

View MOTON RX‑8 SE3P kits

Find your RX‑8 SE3P coilovers.

Prices include UK VAT. Choose an application and brand, then open a kit for its current options and availability.

11 listings

Match the engine, body style and axle-load limits on the product page before ordering.

6 of 11 shown
All RX‑8 SE3P kit links and part numbers

Before you order.

  1. Identify your car

    Identify the build date, original market, engine specification and exact edition.

  2. Match the kit

    Record the original or modified suspension, including PZ or R3 equipment.

  3. Check what’s included

    Match the selected part, year range, mounts and any axle-rating conditions.

  4. Check your modifications

    Check wheel, tyre, spacer and body clearance at the intended working height.

  5. Plan fitting

    Agree fitting, adjustment access, alignment and current supply timing before booking.

See what the adjustments do.

Choosing coilovers for road and track

Compare the kit against your roads, tyres and setup plans before counting adjusters.

Ride height and spring preload

Understand the two adjustments before choosing a lowering range.

What spring rate tells you

Compare force and movement, read the units and choose a spring with the damper in mind.

Spring rates and top mounts

Read the front/rear figures and check which mounts come with your kit.

Questions about Mazda RX‑8 SE3P coilovers.

Check the details before choosing your kit.

Will an early RX-8 kit fit an R3?

Confirm the exact part and car separately. The current UK TEIN examples name 2004 to 2009, while other-market entries cover different periods. Mazda changed suspension components for the facelift, and R3 cars had their own equipment. Use the build date, market and existing hardware when checking the application.

Does a PZ start at the same height as an ordinary RX-8?

Mazda’s UK PZ brochure specifies a 15 mm reduction with its Prodrive-developed Bilstein damper and Eibach spring package. Establish whether those parts remain fitted. Another kit’s lowering figure must be read against its stated original-suspension reference, not simply subtracted from the current arch gap.

What changes between the FLEX Z and MONO SPORT examples?

FLEX Z VSM58-C1SA3 uses twin-tube dampers and listed 8 kgf/mm front, 5 kgf/mm rear springs. MONO SPORT GSM56-71SS3 uses monotube dampers and 10 kgf/mm front, 7 kgf/mm rear springs. Both UK examples list rubber upper mounts and combined 16-position damping adjustment. Match each part’s application before comparing the packages.

What height does TEIN recommend for these UK RX-8 applications?

Both retained UK rows recommend 15 to 35 mm lowering at the front and 10 to 30 mm at the rear. Use that range for the listed application and check travel, wheel clearance and ground clearance on the car. The wider maximum adjustment figures are not recommended operating heights.

Can the damping be adjusted on a Bilstein B14?

B14 has fixed damping and adjustable ride height. B16 PSS9 adds nine combined compression and rebound settings. They are different packages; confirm the exact part, axle limits and fitting conditions rather than selecting from the B14 or B16 name alone.

Does the RX-8 have a separate rear spring and damper?

The original Mazda workshop drawing shows the rear spring around the shock absorber within one assembly. The multi-link arms locate the wheel. Check the replacement kit’s supplied seats, bushes, mounts and stops, then follow its own height and preload instructions.

Why do some RX-8 kits also mention the MX-5 NC?

The manufacturer workbook explicitly lists some M1205 AST and M 521 MOTON references against both cars. That shared reference does not make every MX-5 part an RX-8 kit. Confirm the actual RX-8 application and the springs and mounts being supplied; use the exact part number when asking.

Do I need three-way dampers for track days?

Choose the adjustment you can use and record. The listed AST 5300 separates rebound and two compression controls, with reservoirs to mount and access. An occasional track-day car can instead be assessed around a simpler verified package, its tyres and a sound alignment. Agree the spring specification and setup support before choosing the more involved system.

Let’s talk suspension.

Use the finder to identify your RX-8, then tell us its edition, original market and current suspension. Wheel details and the way you use the car will help us check the appropriate kit.

Call Coilovers Direct0115 647 9207
or

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