BMW E90 GT6 Front Brake Kit: Six-Piston, 345–405 mm
Reviewed by the SteedLuxParts engineering team
Last updated September 28, 2026
BMW E90 GT6 front brake kit for the 2006 to 2011 saloon: six-piston calipers, 18 to 21 inch rows from 345 mm to 405 mm, and a VIN check before the order.
Set price
Quantity pricing updates automatically
$788.00
/ set
1-9 sets
Wholesale tier pricing Lower pricing for larger orders
1-9 sets
Sample or retail orders
$788.00/ set
10-49 sets
Small wholesale batch Recommended
$758.00/ set
Save $30 per set
50-199 sets
Core dealer volume
$718.00/ set
Save $70 per set
Product details
2 calipers; 2 adapter brackets; 2 rotors; 4 brake pads; 2 brake hoses
Shipping and lead time
Ships to
United States
Shipping
Calculated by destination
Delivery
about 20-35 business days
Fitment information
We check OEM wheels with the vehicle year and VIN in our database. For aftermarket wheels, we also need ET, J, spoke, and inner-barrel details.
Warranty and returns
5 years against manufacturing/quality defects only View the full returns policy.
Product information
Product Details & Fitment
The application shown on this page is a reference configuration. It is not a universal-fit claim and it is not the only vehicle application we can review.
Fitment review required
Confirm the vehicle and wheel before production
We check OEM wheels with the vehicle year and VIN in our database. For aftermarket wheels, we also need ET, J, spoke, and inner-barrel details.
- Vehicle model and year
- VIN / chassis number
- Wheel size
- OEM or aftermarket wheel
- Front calipers, rear calipers, or front and rear kit
| Brand | steedluxparts | Category | Big Brake Kits |
|---|---|---|---|
| SKU | SLP-BMW-E90-FRONT-GT6-6P-345-405MM | Minimum order quantity | 1 set |
| Compatible Vehicles | BMW E90 saloon, the four-door body of the fifth-generation 3 Series range; the E91 estate, E92 coupe, E93 convertible and the E90 M3 saloon are kept as separate records | Year Range | Saloon production ran from December 2004 to October 2011 and covers the 2006 to 2011 model years, with the facelift arriving for the 2009 model year; the coupe and convertible of the same platform ran to 2013 and the model year and VIN confirm the car |
| Brake Line / Interface Notes | 2 hoses per set, made to the original specification; the fitting is checked on the vehicle record before production | Installation Type | Confirm before order |
| Additional Setup Required | Depends on the vehicle | Brake Kit Notes | GT6 six-piston front caliper kit; rotor rows 18 inch 345 mm / 355 mm, 19 inch 362 mm / 380 mm, 20 inch 380 mm / 405 mm and 21 inch 405 mm; wheel scope 18 to 21 inch; rotor thickness To be confirmed |
| Included Brake Parts | 2 calipers; 2 adapter brackets; 2 rotors; 4 brake pads; 2 brake hoses | Warranty | 5 years against manufacturing/quality defects only |
| Packaging | Standard export packaging | Carton Size | 45 x 45 x 45 cm |
| Gross Weight | about 45 kg | MOQ | 1 set |
What this E90 GT6 front record releases
Key takeaways
- Vehicle and axle: the BMW E90 saloon of the fifth-generation 3 Series, front axle only. The E91 estate, E92 coupe and E93 convertible sit on other files, and so does the E90 M3 saloon.
- Caliper: a GT6 six-piston front caliper set, built as an aftermarket kit. The page claims no authorization and no part-number match from any brake manufacturer.
- Rotor rows: four planning rows between 18 and 21 inch wheels, from a 345 mm entry row to a 405 mm top row. They are planning numbers, and the rotor thickness is not on file.
- Before release: the model year, the VIN or body number, the wheel record and the disc measured on the car. Installation type stays Confirm before order.
Why the wheel record opens this file, not the piston count
BMW built the E90 saloon from December 2004 to October 2011, sold as the 2006 to 2011 model years, with a facelift arriving for 2009. This record is the BMW E90 GT6 front brake kit for that saloon body, and it answers three questions: which rotor row a wheel points to, what leaves in one set, and what a buyer sends before the order is released. The coupe and convertible of the same platform carried on into 2013, and they are not this file.
Who the file is written for
The first group is owners who already chose the wheel and now need the front axle to match it. The second is tuning and repair shops fitting the same bracket set onto the next car that arrives. The third is caliper suppliers and repair shops holding one SKU across repeat orders. Public records list saloon kerb weight across the range as 1,425–1,825 kg, so a row is picked from the wheel and the build record rather than from the car’s weight.
Where the file stops
This SKU is a front axle product, so the rear axle, the rear rotors and the parking brake are a second file. It doesn’t settle whether a non-original wheel clears the caliper either, because that answer lives in ET, J, spoke shape and the inner barrel. Nothing on this record measures this caliper against an E90 wheel.
The site keeps another E90 file around a V6 six-piston caliper, with rows that stop at 380 mm. This GT6 record runs to 405 mm, so the two are separate products and their rows are not interchangeable.
Fields the quotation reads before anything is cut
We quote from the vehicle record rather than from a shelf. Offset, written ET, is a fitment requirement: it fixes where the wheel’s mounting face sits against the rim centre line, and on a built car it decides most clearance questions. J is the rim width in inches. A two-piece rotor is a disc system built from a separate friction ring on an aluminium hat, which is why one kit line covers more than a single row.
| Control field | On the record now | Send with the enquiry |
|---|---|---|
| Vehicle identity | BMW E90 saloon, the four-door body of the fifth-generation 3 Series, built from December 2004 to October 2011. | The model year, plus the VIN or body number. It checks the file and stays off the page. |
| Original front brakes | Not recorded. Factory front brakes change with the build, so they are read from the VIN. | The VIN, and the factory option or build code when it is known. |
| Original wheels | Held in the company vehicle database and read from the model, the model year and the VIN. | Wheel diameter and width in inches. |
| Aftermarket wheels | No record of those sits behind the car. Spoke shape and inner barrel decide what fits behind a non-original wheel. | ET, J, and photographs of the spokes and the inner barrel. |
| Rotor interface | Planning rows follow the wheel and are listed below; the thickness is not on file. Hat height, centre bore and PCD follow the car rather than a catalogue, so no values appear for them. | The disc diameter and thickness read off the car, plus the PCD when it is available. |
| Hose interface | 2 hoses travel with the set, cut to the original layout. The fitting type is confirmed against the vehicle record. | Nothing extra at enquiry stage; the fitting is settled before production is released. |
Four rotor rows between 18 and 21 inch wheels
Planning reference only. A rotor row is a planning step, not a released fitment: the wheel file and the vehicle record are checked before an order is confirmed, and the rotor thickness is still open. The public model record lists factory wheel diameters from 16 inch to 20 inch for this generation, so a car sitting on 21 inch wheels is a built car.
| Wheel diameter | Rotor row on file | What still has to be measured |
|---|---|---|
| 18 inch | 345 mm / 355 mm | Spoke and inner-barrel clearance at the chosen row. |
| 19 inch | 362 mm / 380 mm | Clearance again, plus the disc thickness measured on the car. |
| 20 inch | 380 mm / 405 mm | Clearance on a larger rotor, which leaves less room behind the spokes. |
| 21 inch | 405 mm | Clearance again, on a wheel size that sits above the factory range. |
Two mistakes arrive with these enquiries. Reading a wheel diameter as clearance is the first one, because offset, spoke shape and inner barrel settle the space behind the wheel. Carrying a rotor row over from the other E90 six-piston file is the second: that record tops out at 380 mm and this one runs 25 mm further, so the rows are not interchangeable.
What leaves in one front axle set
| Component | Qty | How it is matched to the car |
|---|---|---|
| GT6 six-piston caliper | 2 | Housing in 7050 aluminium alloy. A series reference, not a fitment statement. |
| Adapter bracket | 2 | Cut for this body and its original mounting position. It is not a shared part. |
| Rotor | 2 | Friction ring in high-carbon cast iron. The row follows the wheel, and the thickness is still open. |
| Brake pad | 4 | Ceramic friction material, supplied with the set. |
| Brake hose | 2 | Cut to the original layout, with the fitting confirmed against the vehicle record. |
Installation type on this record stays at Confirm before order. No drawing, template or measurement sits behind it, so the kit isn’t presented as a finished fit; the bracket row is checked against the vehicle record before production starts. Caliper, bracket and hat colours can be chosen with the order, and the choice changes how the kit looks rather than how it is matched.
One carton carries 2 calipers, 2 brackets, 2 rotors, 4 pads and 2 hoses: 45 x 45 x 45 cm at about 45 kg measured, which is the figure freight and resale planning runs on. Buyers who want calipers on their own can ask, and the answer is written against the same vehicle record.
Materials on file, and the paperwork that is not
Three material names sit on this record. 7050 aluminium alloy is used for the caliper housing, the hat and the adapter bracket. Rotors are high-carbon cast iron, and the pads carry ceramic friction material. Every caliper page on this site uses the same three names, taken from the shared manufacturing record.
No drawing, dimension sheet, material report, template, brake test or certificate is held for this kit. That boundary cuts both ways: the material names describe the parts, while fitment, clearance and rotor thickness stay with the vehicle record and the final check.
GT6 is the series label this record is sold under. The page doesn’t present the kit as a genuine or licensed product of any brake manufacturer, and it makes no part-number match.
Owners, shops and suppliers: three buying routes
Three ways this kit gets bought
Owners of a built car. The wheel is already on the car or already ordered, and the front axle is the last piece of the build. The rotor row and the colour are the open questions.
Tuning and repair shops. The same bracket set goes onto the next E90 that arrives, so one file answers for the batch instead of one part number per car.
Caliper suppliers and repair shops. One SKU sits behind repeat orders, which puts the carton, the weight and the build window onto the same page as the caliper.
Terms and the build clock
Minimum order is 1 set. The build window is 3–7 business days, delivery adds about 20–35 business days, and a 30% deposit puts the set into production ahead of the balance and the formal quotation.
Warranty covers 5 years against manufacturing and quality defects only. Wear, wrong fitment, misuse and unauthorised changes are not covered.
Nothing here comes off a shelf, so no price is printed. We write the quotation from the vehicle record: model, model year, wheel data and the disc already on the car.
Questions that arrive before an E90 GT6 order
Does the set include the rear axle or the handbrake parts?
No. This is a front axle kit, and rear calipers, rear rotors and parking brake parts are quoted from a second file.
What is still missing before production can start?
The rotor thickness, and the wheel and disc data from the car. Nothing on this record measures the kit against an E90, so installation stays at Confirm before order until an approved release is signed.
Will a 21 inch wheel take the 405 mm row?
The file holds no measurement of this caliper behind an E90 wheel, so the row isn’t released on the wheel diameter alone. Send the wheel data and photographs, and the row is confirmed against the car before production.
How does this file differ from the site’s V6 six-piston E90 record?
That record tops out at 380 mm, and this one runs to 405 mm. Both cover the same body, so the quotation follows whichever record matches the car and the wheel.
Can a shop order one set and reorder the same bracket later?
Yes. The minimum order is 1 set, and the bracket is cut from the same vehicle record on the next order, so a workshop keeps a file rather than a part number.
Do colour choices change the build or the bracket?
No. Caliper, bracket and hat colours are chosen with the order and change how the kit looks. Bracket geometry, the rotor row and the hose fitting are set by the vehicle record.
Photos on the file, and the first message to send
Three photographs sit behind this record: an installation sequence, a contents sheet and an export loading shot. None of them shows this kit on an E90, so none is used as fitment evidence, and each caption says so.
One message starts the order. Give the model year and the VIN or body number first. Then the wheel diameter and width, and whether those wheels came with the car. If those wheels didn’t come with the car, add the ET and J figures. Finish with the front disc diameter and thickness measured on the car, which is the number this file is still missing.
Send the VIN, wheel record and disc measurement
Sources checked for the chassis background. Each one covers a single point, and neither proves fitment for this kit.
- BMW 3 Series (E90) gives the body codes, the saloon window from December 2004 to October 2011, the 2009 facelift and the kerb weight range quoted above.
- BMW 3 Series places the F30 generation as the saloon’s successor, which is why this file follows the E90 window instead of the 2013 date that belongs to the coupe and convertible.
Market checks stay in the working file: the r/E90 clearance thread and the retrofit videos read on 2026-09-28 shaped the wheel questions above, and none of them proves this kit fits an E90.
This record was updated on 2026-09-28. Values come from the seller’s product record, the two sources above and the public model record.
Fitment resources before ordering
OE lookup, wheel size, packing, RFQ.
01
Buyer resource
OE lookup center.
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02 Buyer resource Buyer FAQ.Fitment, warranty, packing, quote answers.
03 Buyer resource Browse Big Brake Kits.Compare nearby variants first.
04 Buyer resource Shipping and claim support.Export packing and freight evidence.
05 Buyer resource Terms and claim rules.Approval, payment, shipping and return limits.
06 Buyer resource Request fitment review.Send model, year, VIN and wheel data.
07 Buyer resource Solutions and technical guide.Fitment, installation and packing checks.
08 Buyer resource Buyer application scenarios.Sourcing workflows for international buyers.
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