ISC Suspension - BMW 5 Series 04-10 E61 X-Drive ISC N1 Coilovers FRONTS AND REAR STRUTS ONLY (No rear springs or perches) (E61xi fronts and rear shocks no springs)
Vendor: ISC Suspension
Available: In stock
SKU: ISC Suspension-E61xi fronts and rear shocks no springs
On all products!
60 days return policy
If you are looking to keep your OEM rear air bag but use the ISC rear struts. Not a full kit, does not include rear springs or spring perches. If you want to replace the rear shocks but keep the rear OEM air bags then this kit is for you!
The ISC N1 Coilover system is the optimum suspension tool for
improved handling for your street, track, or drift car. This product is
perfect for someone looking for performance, adjustability, and other
high quality features in a package that will not break the bank. ISC
coilovers are also 100% rebuildable!
Our Self Manufactured N1
allows us to have top grade quality control and innovative R&D
capabilities due to our in house/self-made company dynamic. ISC
Suspension utilizes some of the best modern engineering techniques and
suspension design. ISC has been present in the world for over 13 years
and has accomplished drift, road course, street, and other various
podiums alike. Over a decade of experience, knowledge, engineering, and
feedback have shaped the ISC N1 system into what it is today. All ISC
Coilover systems are proudly serviced and distributed in Gilford, NH.
warranties its coilover systems to the ORIGINAL PURCHASER against
defects in workmanship and material for 5 years. Product registration is
required, for more details visit here: Warranty
ISC Coilovers all come with 32 way adjustable damping that is rebound and compression in unison via 32 step adjustment.
Single Cylinder Mono-tube Design:
cylinder and piston design work hand in hand to increasing driving
stability and dexterity. ISC utilizes a mono-tube design damper, not
twin tube like other manufacturers. Mono-tube dampers provide consistent
valving and much less potential for cavitation. They are also high
pressure to reduce body roll, and are 100% efficient through all
temperatures. Our larger pistons also allows more oil which provides
better damping control and the ability to absorb higher forces. All ISC
Dampers also utilize a double o-ring to prevent leaks.
Multiple Valving Options:
ISC Suspension offers three valving options to choose from, street comfort, street sport, and track race.
Comfort is designed to feel close to OEM and is the most comfortable
valving that we offer. If you are looking for a mild drop and
comfortable ride this is for you!
is designed to be above OEM, and is more aggressive and ideal for
street, drift, and occasional autocross. If you’re looking to bring your
car to its limits on the street, this one is for you!
is our most aggressively valved and is suggested for road course,
slammed show cars, and some form of drifting. If you are installing
these coilovers on a dedicated weekend track car, this option is for
ISC also offers custom valving, please contact for an accurate ETA.
Piston Rod Design:
utilizes high rigidity steel piston rods that meet all race and sport
standards. ISC shafts are valved according to the spring rate chosen by
the customer. A shock dyno is used to ensure quality and consistent
results. All ISC dampers are 100% fully rebuildable.
For optimal performance pillowball upper mounts are a great feature. ISC includes these upper mounts of all N1 Systems.
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.
many coilover companies charge for thrust bearings ISC does not. These
come standard on all N1 coilovers and help to eliminate spring bind; a
common side effect of utilizing aftermarket coilovers.
Suspension offers a variety of different spring’s rates. Our springs
are made from high quality SAE9254 Steel. They are dyno tested over
500,000 times on a compression inspection with less than 5% deformation.
We are fully capable of offering custom spring rates as well! Every
driver is different and we understand some may need custom spring rates.
Triple S Springs also available as an upgrade visit here for more information: Triple S Springs
Ride Height Adjustable:
length height adjustability. Most applications can achieve 3 inches or
more. High quality T6061 aluminum allow used for all adjustment locks to
provide a lightweight design that holds spring and vehicle force down.
Bound Adjustable with Separate Spring Locks:
Preload is separate from ride height; the lower you go the quality of the ride stays the same!
from T6061 aluminum allow by organic shaping to lighten weight and
increase handling performance. ISC Gold or Black anodized surfaces help
to prevent corrosion and surface rust. Most applications also feature
mounting points for OEM brake line installation.