Dial in your IS350’s handling with coilovers that offer precise damping adjustments for street or track. Finding the best coilovers for lexus is350 can transform how your car feels on every corner. We have tested and researched the top options to help you make the right choice.
Coilovers are a complete suspension replacement that lowers your car and improves handling. They replace your struts and springs with a single adjustable unit. This gives you control over ride height, damping, and sometimes camber.
Your Lexus IS350 deserves suspension that matches its sporty character. Factory parts are comfortable but soft for serious driving. Upgrading to coilovers sharpens steering response and reduces body roll.
This guide covers everything you need to know. We compare brands, explain features, and help you choose based on your driving style. Let’s get your IS350 handling like a dream.
Best Coilovers For Lexus Is350
We have narrowed down the top coilover kits for your IS350. Each option suits different budgets and driving needs. Below are our top picks with honest pros and cons.
Fortune Auto 500 Series
Fortune Auto is a favorite among IS350 owners for good reason. Their 500 Series coilovers offer digressive valving for excellent control. You get 24-way adjustable damping for fine-tuning.
These coilovers come with a lifetime warranty on the damper body. They are rebuildable in the USA, which adds long-term value. The ride quality is firm but not harsh for daily driving.
- Adjustable damping: 24 clicks
- Ride height adjustable: Yes
- Spring rates: 8k front / 10k rear (customizable)
- Warranty: Lifetime on damper body
- Price range: $1,200 – $1,400
Fortune Auto also offers Swift spring upgrades for better response. The build quality is excellent for the price. Many track enthusiasts run these without issues.
KW Variant 3
KW is a premium German brand known for precision engineering. The Variant 3 coilovers feature independent rebound and compression adjustment. This gives you more control over handling characteristics.
These are ideal if you want a dual-purpose setup. They work great on the street and perform well at autocross or track days. The stainless steel construction resists corrosion.
- Independent adjustment: Rebound and compression
- Ride height adjustable: Yes
- Spring rates: Optimized for IS350
- Warranty: 5 years
- Price range: $2,200 – $2,500
KW coilovers are more expensive but offer superior ride quality. The damping range is wide enough for comfortable daily driving. They are a solid investment for serious drivers.
BC Racing BR Series
BC Racing is a popular budget-friendly option that does not skimp on features. The BR Series offers 30-way adjustable damping and ride height adjustment. They are a great entry point for coilover upgrades.
These coilovers come with pillow ball upper mounts for reduced deflection. The monotube design provides consistent damping performance. Many owners report good reliability for the price.
- Adjustable damping: 30 clicks
- Ride height adjustable: Yes
- Spring rates: 6k front / 8k rear (customizable)
- Warranty: 2 years
- Price range: $900 – $1,100
BC Racing coilovers are a solid choice if you are on a tighter budget. They offer good performance for daily driving and occasional track use. Just know they are not as refined as pricier options.
Ohlins Road & Track
Ohlins is a top-tier brand used in motorsports worldwide. Their Road & Track coilovers for the IS350 use dual-flow valve technology. This provides exceptional damping control and comfort.
These are the best coilovers for lexus is350 if you want maximum performance. They are lightweight and feature a separate reservoir for the rear. The build quality is second to none.
- Adjustable damping: 20 clicks
- Ride height adjustable: Yes
- Spring rates: 7k front / 9k rear
- Warranty: 2 years
- Price range: $2,800 – $3,200
Ohlins coilovers are expensive but deliver race-level handling. They are perfect for track-focused builds. The ride quality remains compliant on rough roads.
Tein Flex Z
Tein is a Japanese brand with a strong reputation for reliability. The Flex Z coilovers feature a full-length ride height adjustment system. This means lowering does not affect suspension travel.
These coilovers are pre-assembled for easy installation. They come with a durable zinc coating to prevent rust. The damping is adjustable with 16 clicks.
- Adjustable damping: 16 clicks
- Ride height adjustable: Yes (full-length)
- Spring rates: 7k front / 7k rear
- Warranty: 1 year
- Price range: $800 – $950
Tein Flex Z coilovers are a great value for the money. They are comfortable for daily driving and offer decent handling improvement. Not the best for hardcore track use but solid for street.
How To Choose Coilovers For Your Is350
Selecting the right coilovers depends on your goals. Consider these factors before making a purchase.
Determine Your Driving Style
Are you mostly driving on the street? Do you plan to track your car? Street-focused coilovers prioritize comfort while track setups focus on stiffness.
For daily driving, look for softer spring rates around 6k to 8k. Track use may require 10k or higher. Some coilovers allow you to customize spring rates.
Check Adjustability Features
More adjustability gives you finer control. Basic coilovers only adjust ride height. Better ones offer damping adjustment for rebound and compression.
Independent adjustment is useful for fine-tuning. If you are new to coilovers, 24-way damping is plenty. You do not need complex setups unless you are experienced.
Consider Build Quality And Warranty
Look for coilovers made from stainless steel or with corrosion-resistant coating. Rebuildable units last longer and save money over time. A good warranty shows the brand stands behind its product.
Fortune Auto and KW offer excellent warranties. Cheaper options may have shorter coverage but still work well for many owners.
Budget Realistically
Coilovers range from $800 to over $3,000. Set a budget that matches your needs. Do not overspend if you only drive on the street.
Entry-level coilovers like BC Racing or Tein are fine for most people. Spend more if you want premium ride quality or track performance.
Installation Tips For Is350 Coilovers
Installing coilovers is a moderate DIY job. You need basic tools and a jack. Follow these steps for a smooth installation.
Gather Necessary Tools
You will need a floor jack, jack stands, socket set, torque wrench, and spring compressors. Some coilovers come pre-assembled, which saves time.
Have penetrating oil ready for rusted bolts. The IS350’s suspension bolts can be tight. Take your time to avoid stripping anything.
Remove Old Suspension Components
Jack up the car and secure it on stands. Remove the wheels. Unbolt the strut assembly from the knuckle and top mount.
Be careful with the brake lines and ABS sensors. Do not let them stretch or get damaged. Use a zip tie to hold them out of the way.
Install New Coilovers
Set the ride height roughly before installation. Install the coilover into the knuckle and top mount. Torque all bolts to factory specifications.
Do not tighten the control arm bolts until the car is on the ground. This prevents bushing bind. Lower the car and bounce it a few times to settle the suspension.
Get A Professional Alignment
After installation, get a wheel alignment. Coilovers change your camber and toe settings. A proper alignment ensures even tire wear and good handling.
Tell the alignment shop your desired ride height. They can adjust camber if your coilovers have camber plates. This step is critical for safety.
Setting Up Your Coilovers For Street Or Track
Once installed, you need to dial in the settings. Proper setup makes a huge difference in how your IS350 drives.
Set Ride Height First
Adjust the ride height to your preference. Lowering too much can cause rubbing or bottoming out. A good starting point is a 1.5-inch drop front and rear.
Measure from the center of the wheel to the fender edge. Write down your starting height. Make small adjustments and test drive before changing further.
Adjust Damping For Street Driving
For daily driving, set damping to a softer setting. Start at 10-12 clicks from full stiff for most coilovers. This provides comfort while still controlling body roll.
Test drive on your usual roads. If the ride feels too harsh, soften it by 2-3 clicks. If it feels bouncy, stiffen it slightly.
Set Damping For Track Use
For track days, stiffen the damping to reduce body roll. Start at 5-8 clicks from full stiff. Adjust based on how the car feels during cornering.
Pay attention to tire temperature. If the tires are overheating on the edges, adjust camber or damping. Track setup takes trial and error.
Fine-Tune With Corner Weighing
For serious track use, consider corner weighing. This balances the car’s weight distribution. It improves traction and consistency.
Corner weighing requires specialized scales. Many race shops offer this service. It is worth it if you compete in autocross or track events.
Common Issues With Is350 Coilovers
Coilovers are not without potential problems. Know these issues before you buy.
Ride Quality Too Harsh
Some coilovers are too stiff for daily driving. Cheap brands often use high spring rates without good damping. This makes the car uncomfortable on rough roads.
Solution: Choose coilovers with adjustable damping. Start with softer settings. Upgrade to Swift springs if needed.
Noise And Clunking
Clunking noises can come from loose bolts or worn top mounts. Pillow ball mounts transmit more noise than rubber ones. This is normal but can be annoying.
Solution: Check all bolts are torqued correctly. Use rubber top mounts if you want a quieter ride. Apply grease to moving parts.
Premature Wear
Cheaper coilovers may leak or fail after a few years. Salt and road debris can damage the damper body. This is more common with budget brands.
Solution: Buy from reputable brands with good warranties. Clean your coilovers regularly. Consider stainless steel options for corrosion resistance.
Alignment Issues
Lowering your IS350 changes suspension geometry. You may need camber arms or toe links to correct alignment. Without them, tire wear can be uneven.
Solution: Plan for additional alignment parts. Many coilover kits include camber plates. Budget for a full alignment after installation.
Frequently Asked Questions
What are the best coilovers for lexus is350 for daily driving?
For daily driving, Fortune Auto 500 Series or KW Variant 3 are excellent. They offer good comfort with adjustable damping. BC Racing BR Series is also a solid budget option.
Can I install coilovers on my IS350 myself?
Yes, with basic mechanical skills and tools. The job takes 4-6 hours. You need a jack, stands, and torque wrench. Get a professional alignment afterward.
How much lower will my IS350 be with coilovers?
Most coilovers allow 1-3 inches of lowering. A common drop is 1.5 inches. You can adjust height to your preference, but too low causes rubbing.
Do coilovers affect ride comfort?
Yes, coilovers are firmer than stock suspension. Quality coilovers with good damping can still be comfortable. Cheaper ones may be harsh. Adjustable damping helps find a balance.
What is the best coilover brand for track use?
Ohlins Road & Track and KW Variant 3 are top choices for track use. They offer precise damping control and high build quality. Fortune Auto is also good for intermediate track drivers.
Final Thoughts On Upgrading Your Is350
Choosing the best coilovers for lexus is350 comes down to your driving needs. Street drivers will love Fortune Auto or BC Racing for their balance. Track enthusiasts should consider Ohlins or KW for maximum performance.
Do not forget to budget for installation and alignment. A proper setup makes a huge difference in how your car handles. Take your time adjusting settings to find what works for you.
Your IS350 deserves suspension that matches its potential. With the right coilovers, you will enjoy every twisty road and track day. The upgrade is one of the best mods you can make for your car.
We hope this guide helps you make an informed decision. Happy driving and enjoy your improved handling. Your Lexus will thank you for it.