SKU: iscB005-4-T

ISC Suspension 06-11 BMW 3 Series E90/E91/E92 X-Drive ISC Adjustable N1 Coilovers - Track/Race

$1,049.00 Regular price $1,349.00
Shipping calculated at checkout.
by ISC

ISC Suspension 06-11 BMW 3 Series E90/E91/E92 X-Drive ISC Adjustable N1 Coilovers - Track/Race


The ISC N1 coilover is the optimum suspension tool for improved handling for your street or weekend track car. This product is perfect for someone looking for performance, adjustability, height and dampening and other quality features. Our self-manufactured ISC N1 allows us to have top grade quality control, and innovative R&D capabilities due to our in house/ self-made company dynamic. ISC has been present for over 12 years in Asia and Australia, which accomplished drift, road course, street enthusiasts and podiums alike. Over a decade of experience and feedback has allowed the ISC N1 to evolve into what it is today. *Specs:* * 6061 Aluminum * Top Grade Hardware, Pillowball Bearings * StreetSeal (TM) corrosion protectant technology * Anodized Finish * Light weight * Large Adjustment Range *Details:* * SO9001:2000R Certified * ARTC Certified * 5 Year Warranty: All service, rebuilds and warranty support are done here in our USA facility. All custom coilover orders are hand assembled here in our New Hampshire location. ISC reaches to have some of the best customer service in the industry. *32 Step Damper Adjustable:* * Rebound/ Compression adjusted in unison via 32 step adjustment. *Pillowball Upper mounts:* * For optimal performance Pillowball Upper mounts are a great feature. ISC Coilovers include pillowball upper mounts on all N1’s. *Thrust Bearing Kit:* * We will not charge you 50.00- 100.00 to upgrade to a thrust bearing kit, these are a FREE upgrade on all ISC N1’s. This helps eliminate the chance of spring bind; a common side effect of running aftermarket coilovers. *Front Camber Plates:* * When your vehicle’s suspension geometry allows (vehicle specific, please check our application guide) all ISC N1’s come with adjustable camber plates standard. *Piston Rod Design:* * High rigidity steel piston rods * Meets with race/sport standards * Shafts are valved according to the spring rate you choose. A Shock Dyno is used to ensure quality and consistent results. *Single Cylinder Design:* * Larger cylinder and piston design to advance driving stability and dexterity. * Mono-Tube damper with high pressure nitrogen. * Threaded portion of shaft is powder coated then salt spray coated for optimum street durability- We suggest also using anti seize or other protective products when you install your coilovers for even further protection from the elements if you are exposed to snow and salt. *Sports Spring:* * Made from high quality SAE9254 steel * Dyno tested over 500,000 times on compression inspection with less than 5% deformation. *Fully Custom Spring Rates/Valving:* * Street Comfort, Street/Sport or Track/Race (spring rates vary depending on application, custom spring rates are available). * We understand each driver has unique demands are happy to offer you a custom set for your vehicle. *Ride Height Adjustable:* * Full length height adjustable- 3 inches or more on most applications. * High quality T6061 aluminum alloy used for all adjustment locks to provide a lightweight design that holds spring and vehicle down force. *Bound Adjustable with Separate Spring Locks:* * Preload is separate from ride height; the lower you go the ride quality stays the same! *Aluminum Brackets:* * Made from T6061 aluminum alloy by organic shaping to lighten weight and increase handling performance. * ISC Gold or Black anodized surface to help prevent inside corrosion and surface rust. * Brake lines and mounting brackets are welded onto the bottom mounts *in most applications* for an OEM type installation and fitment.

We have a 20-day return policy, which means you have 20 days after receiving your item(s) to request a return. Please note we charge a 25% restocking fee on all returns. To be eligible for a return, your item must be in the same original/new condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase. To start a return, you can contact us at Items sent back to us without first requesting a return will not be accepted. You can always contact us for any return question at Please inspect your order upon arrival, and contact us immediately if the item is defective, damaged or if you received the wrong item, so that we can evaluate the issue and make it right.

Exceptions/non-returnable items:

Certain items cannot be returned, like sale items, perishable goods, custom products (such as special orders or personalized items), hazardous materials, flammable liquids, and/or gases. Please get in touch if you have questions or concerns about your specific item. Unfortunately, we cannot accept returns on sale items or gift cards.


The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item.


We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method. Please remember, it can take some time for your bank or credit card company to process and post the refund.