Flatout Suspension SR Coilovers Lexus IS250 | IS350 (2006-2013) w/ Front Camber Plates

Our SR series is the ideal coilover option for daily drivers that aspire to keep comfort while adding a faster-responding suspension for backroads and occasional autocross competitions.

Fitment Information

• Lexus IS250 | IS350 (2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013) 

Specs & Features

• Flatout SR Coilovers
• w/ Front Camber Plates
• Lowering Range:
• Front: 0.5" Min to 3.0" Max
• Rear: 0.5" Min to 3.0" Max
• Designed for Street Comfort
• 2 Front Assemblies
• 2 Rear Assemblies
• Radial bearing on Front Assembly
• Linear Rate Springs
• Electro-Plated Steel Cartridge
• Rebuildable Monotube Shock
• CNC Machined High-flow Aluminum Piston
• Stainless Steel Shims
• Medium Weight Synthetic Shock Oil
• Dual height adjustable
• Rebound Adjustable : 20pts
• Camber/ Pillowball upper mounts standard
• Brackets for Sensor Lines on Lower Mounts
• Individual Parts Available
• 3-Year Warranty Against Defect
• Approx 2wks to hand assemble and ship

Wheel Spacers

Because there’s nothing worse than installing your Coilovers, then finding out the new suspension rubs on your tire, you’ll receive 5mm wheel spacers for FREE with your SR or ST Coilovers. It’s just one more thing among the many standard features that we include. 

Product Description

Our SR series is the ideal coilover option for daily drivers that aspire to keep comfort while adding a faster-responding suspension for backroads and occasional autocross competitions.

The SR series features a mono-tube shock which makes rebuilds much easier as the entire assembly is completely modular. If you ever want to upgrade the suspension to a higher spec, it's as easy as breaking down the shock and using new components available through us. We can do the upgrade, or we can send you the parts if you are the do-it-yourself type.

Our modular shock body features a 52x1.5mm thread pitch which is extremely common in the suspension industry. Inside the shock is a Chromoly piston rod (14mm on a-arm/ 20mm on strut-based suspensions) that houses our proprietary aluminum piston, stainless steel shims, and medium-weight synthetic shock oil. Further down the assembly is an aluminum floating piston that separates the nitrogen and shock oil. The final touch to the suspension is a sand-blasted, nickel-plated shock casing that will give you 5+ years of corrosion resistance.

On the outside of the assembly is a cold-wound linear coil spring. We use the optimal rate and length to allow for the most range of adjustments without sacrificing any available stroke. On short-stroke suspensions, we use a barrel spring (wider in the center) to prevent spring binding common in short-stroke suspensions. Some applications (BMW 3 series, typically European and multi-link) use a special spring with an open end on top or bottom. Due to this, we are limited on the rates we can offer as we have them made in bulk.

Finally, the coilovers come with camber plates as standard. On a-arm suspensions, you will get a pillow ball upper mount. The multi-link rear will generally have you transfer your OEM rear upper shock mount. In some extreme cases, you will transfer both your front and rear top mounts (5th/6th Gen Camaro, for instance).

We include everything you will need, some by request; such as rear knob extensions. Some applications benefit from an adjustable front end-link for the sway bar (some require new front and rear links (Porsche 996 C4, for example) so we generally include those, or we relocated the upper bracket to accommodate.

Redline360 is an authorized Flatout dealer.  Flatout honors your warranty when purchasing your Flatout Coilovers from Redline360.