Dinan 21-27 BMW M3/M4 (G80/G82/G83) Adjustable Coil-Over Suspension System

Dinan SKU: DNND190-8210
Price
Regular price $1,05500
Regular price $1,32000 Sale price $1,05500
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2 in stock at our US warehouse. Arrives in about 2 weeks.

✓ No import fees or duties at delivery
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Dinan's design retains the superb factory electronic shocks but swaps the springs to a more aggressive, performance enhancing formula and implements threaded collars that allow the user to change the ride height themselves. While shorter, stiffer springs are commonplace in aftermarket suspensions and are a key element in reduction of body roll it is not a one size fits all approach. In the case of the G8x M3/M4 where the vehicle has a penchant for oversteer, stiffening the rear springs would exacerbate the problem of the rear losing traction before the front when the platform is pushed to the limit. Dinan instead has opted to soften the rear spring rate as well as switch from the factory progressive rate rear to a dual rate spring setup. The combination increases predictability and compliancy, and in turn, provides better rear grip/road holding for a vehicle that needs both. The result is a sleek lowered stance that provides improved handling to go along with its stunning visual appearance. The springs combined with progressive bump stops and other components increase travel that allow the car to be lowered up to 1-1/8" in the front and 2-1/4" inches the rear. However, to retain the ride quality synonymous with Dinan suspension kits the recommended drop of 3/4" (M4) or 7/8" (M3) in front and 3/4" in the rear is advised. For suspension connoisseurs, or those that are just simply very particular, suspension packers are included to fine-tune handling and comfort by changing the clearance of the progressive bump-stops --- something no respectable race car is without.

Installation Instructions
  • Up to 1" of lowering in front and 2-1/4" of lowering in back are possible depending on tire clearance but with diminished ride quality
  • Components are machined from 6061-T6 aluminum and black anodized for a sporty appearance as well as corrosion protection
  • Dinan recommends a 3/4" (M4) to 7/8" (M3) drop in front and a 3/4" drop in the rear to maintain a civilized ride
  • Spring rates are 15% stiffer in front and 10% softer in the rear for increased predictability and compliancy
  • Included suspension packers allow adjustment of bump-stop clearance to fine-tune handling and comfort
  • Stock upper spring mounts are utilized as well as spring isolators for quiet operation
  • Threaded collars allow easy and precise front & rear vehicle height adjustments
  • Dinan-spec progressive bump stops improve ride quality at lowered ride heights
  • Up to 1/2" of lift in front and 1-1/4" in back over stock is also possible
  • Substantial reduction in body roll

This Part Fits:

Year Make Model Submodel
2021-2026 BMW M3 Base
2021-2026 BMW M3 Competition
2022-2026 BMW M3 Competition xDrive
2021-2026 BMW M4 Base
2021-2026 BMW M4 Competition
2022-2026 BMW M4 Competition xDrive
2023 BMW M4 CSL
Shipping information

In stock at our Winnipeg warehouse: ships in 1 to 3 business days.

In stock in Canada: ships from one of our Canadian warehouses in 3 to 5 business days.

In stock at our US warehouse: we bring it into our Winnipeg warehouse first, then ship it to you. 

This takes about 2 weeks.

Special order: contact us at sales@ossmotorsport.com or 431-831-0100 for an ETA.

Tracking is emailed as soon as your order ships.

Absolutely NO refunds/exchanges on special order items. If return of a non special order item is requested, customer must pay shipping and it must be requested within 14 days of purchase.

Any orders not picked up by the customer within 15 days after notification of arrival becomes property of OSS Motorsport Ltd. no credit or refund will be given.

Customers that remove product(s) from OSS Motorsport will have been deemed to agree with all of the above terms and conditions. All items sold are for Off Road Use Only.

All performance modifications are done at your own risk and may void your warranty.

UNWANTED ITEMS

Unwanted items are subject to a 20% restocking fee, in addition to the return shipping to our warehouse(if applicable). Used items cannot be returned.

Electronics

All Electronics are final sale!

TERMS AND CONDITIONS

Please have your mail box or junk mail box checked for status updates.

Shipments, returns & refund

During the payment process, we provide delivery options with different delivery companies with which we have no contractual relationship. We offer commission free this added service so the client can receive its order without having to round trip to our warehouse. If there is any problem with the delivery, it is the consignee responsibility to contact the delivery company he/she dealt with directly. The carrier provide a limited insurance of 100$. If you need more, please contact us prior to purchase as we will get you the quotation for extra insurance from the carrier you will select.

NO return accepted. Exchange upon approval and proof of factory default.

Partial or full refund requests are subject to 5% administrative fees. Refund is immediately issued upon cancellation and a confirmation email is sent. However, depending on the payment method used, it may take one (1) to ten (10) days for the refund to appear in client account.

Special orders are non-refundable.

Disclaimers:

Some products may be used for off-road only. Customer is responsible to check with his/her local/state laws and ordinances.

We are not responsible if the client ordered the wrong item, which does not work on its vehicle.

All parts required professional installation, there is no return or exchange if the client does not know how to install it him/herself.

OSS Motorsport is not responsible for defective or damage caused by unprofessional installation or misuse of the product.

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