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ISC Suspension N1 coilovers full view with threaded body
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ISC Suspension 00-05 BMW 320/323/325/328/330 N1 Coilovers - Track/Race

ISCB003-1-T
ISC-B003-1-T
Coilovers
4 Units In Stock - Ships Next Business Day
$ 1,619.00 $ 1,199.00
$ 1,199.00

SKU: ISCB003-1-T

ISC Suspension N1 Coilovers 2000-2005 BMW 3 Series (E46) 320/323/325/328/330 - Track/Race

The ISC Suspension ISCB003-1-T N1 Coilovers are the best track and race-focused coilover kit for 2000-2005 BMW 3 Series (E46) 320/323/325/328/330 owners seeking aggressive drop, precise handling, and maximum adjustability. Featuring 32-level damping adjustment, pillowball mounts, monotube design, and high-performance springs, these coilovers deliver razor-sharp cornering, reduced body roll, and tunable ride height ideal for track days, autocross, canyon carving, or aggressive street builds on the E46 platform.

Key Features

  • 32-Level Damping Adjustment: Independent rebound adjustment for precise tuning of ride firmness and handling
  • Monotube Construction: Superior heat dissipation, fade resistance, and consistent performance under hard driving
  • Pillowball Upper Mounts: Front camber plates included for adjustable camber and improved steering response
  • Threaded Body Design: Full ride height adjustability without changing preload – drop from mild to slammed
  • High-Performance Springs: Progressive-rate springs for balanced comfort and aggressive handling
  • Track/Race Focused: Engineered for maximum grip, reduced body roll, and precise control on the track

Specifications

Specification Detail
Part Number ISCB003-1-T
Compatibility 2000-2005 BMW 3 Series E46 (320i, 323i, 325i, 328i, 330i – Sedan, Coupe, Convertible)
Front Spring Rate Application-Specific (Track/Race Tune)
Rear Spring Rate Application-Specific (Track/Race Tune)
Damping Adjustment 32-Level Rebound
Upper Mount Pillowball (Front Camber Plates Included)
Construction Monotube
Finish Black Powder Coat
Installation Direct Bolt-On (No Modifications Required)
Country of Origin United States
Warranty Limited Lifetime (ISC Suspension)

Product Notes

  • Track/Race tune aggressive damping and spring rates optimized for circuit and autocross performance
  • Full adjustable ride height drop from mild to slammed while maintaining proper geometry
  • Pillowball front mounts with camber plates included ideal for alignment and handling optimization

Installation Notes

  • Estimated time: 4-6 hours, advanced difficulty, professional installation strongly recommended
  • Requires full suspension disassembly, spring compressor, and proper torque alignment essential after install
  • Check for proper bump stop clearance and adjust damping to preference track setup recommended

This Part Fits

Year Make Model Notes
2000-2005 BMW 3 Series (E46) 320i / 323i / 325i / 328i / 330i (Sedan, Coupe, Convertible)

Why Choose ISC Suspension N1 Coilovers?

  • 32-level damping and pillowball mounts deliver precise tuning for track and aggressive street use
  • Monotube design with progressive springs provide superior handling and fade resistance
  • Limited lifetime warranty and trusted quality perfect upgrade for E46 performance enthusiasts

Frequently Asked Questions

  • Q: Will these coilovers fit my 2003 BMW 325i Sedan?
    A: Yes, ISC N1 ISCB003-1-T fits all 2000-2005 BMW E46 3 Series models (320/323/325/328/330).
  • Q: Are camber plates included?
    A: Yes, front pillowball mounts include adjustable camber plates for alignment optimization.
  • Q: Is professional installation required?
    A: Strongly recommended requires full suspension work, spring compressor, and alignment.
  • Q: What drop range can I achieve?
    A: Fully adjustable drop from mild to slammed while maintaining proper geometry and handling.

Shipping & Handling

  • Method: UPS/FedEx Ground (Oversize)
  • Availability: In stock - ships same or next business day
  • Packaging: Secure protective packaging
  • Weight: Application-Specific (Heavy Package)

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