Quick Look: Flatout Suspension Models

Sep 4th 2024

Understanding the Flatout Suspension Lineup

We receive a lot of questions about the different suspension models we offer. While we have a detailed tech article that dives deep into the GR series, here’s a clear overview of each model and what makes it unique:

Flatout TR – Trail Runner

Our newest addition to the lineup, the Trail Runner is designed for drivers who want a lift without going to a fully adjustable coilover system.

Retains OEM ride quality and comfort
Uses OEM-spec springs and top mounts for a stealthy, factory-like appearance
Compatible with any OEM-style spring and allows the addition of strut spacers for extra height
Unique feature: adjustable compression damping — something most competitors don’t offer.

Ideal for: daily drivers who want a mild lift and stock-like refinement.

Flatout SR – Street Ready

The SR is our entry-level street suspension, designed to be simple, comfortable, and clean.

Perfect for lowering daily drivers
Offers three spring color options and two valving styles for personalization
Shares the same foundation as GR Lite but optimized for on-road performance with street valving and lower travel.

Ideal for: daily drivers who want a clean, lowered look with a comfortable ride.

Flatout CS – Club Sport

Track-ready yet very streetable, the CS adds performance features for spirited driving.

Inverted shocks, external reservoirs, and digressive valving
Shares core components with GR40, but optimized for street and track use through unique travel, valving, and spring rates.

Ideal for: drivers who track their cars or want a sharper, more performance-focused setup.

Flatout CS PRO

For those who want full motorsport capability, the CS PRO turns the CS platform up to 11.

3-way shock damping control: low-speed compression, high-speed compression, and rebound.
True race-grade performance.

Ideal for: competitive drivers and serious track enthusiasts.

Flatout GR Lite – Entry-Level Off-Road

Our most approachable off-road coilover.

Provides up to 2 inches of lift, adjustable to around 3 inches depending on application
Proprietary off-road valving paired with low-rate springs for excellent ride comfort
Designed to maintain OEM ride quality while adding clearance.

Ideal for: daily drivers who want lift and capability without sacrificing comfort.

Flatout GR Plus – The All-Rounder

Our best-selling suspension system.

Everything you love about GR Lite, but with inverted front shocks for added strength and endurance
Balanced valving and spring rates to retain OEM-like ride comfort.

Ideal for: adventurers who spend time both on and off the road.

Flatout GR40 – Rally-Inspired

Takes the GR Plus platform to the next level.

Adds external rear reservoirs (or inverted rears depending on application)
Allows increased compression travel and improved damping control.

Ideal for: off-road enthusiasts, rallycross competitors, and those who want to push their suspension harder.

Flatout GR40R – Full Reservoir Upgrade

Identical to GR40, but adds external reservoirs to the front shocks as well.

Ideal for: drivers who want reservoir shocks at all four corners for maximum performance.

Flatout GR40 PRO – 3-Way Rally Suspension

Builds on the GR40R with 3-way adjustability (low-speed compression, high-speed compression, and rebound).

Ideal for: competitive rallycross and performance off-road driving.

Flatout GR50 – Heavy-Duty Stage Rally

Based on the GR40, but upgraded with 50mm shock inserts and 62mm threaded bodies (vs. 40mm / 52mm on GR40).
Designed for serious off-road and rally abuse.

Ideal for: drivers who need maximum strength and travel.

Flatout GR50R – Full Reservoir Rally

Adds reservoirs to all four shocks using the larger 50/62 setup from GR50.

Ideal for: heavy off-road users and competitive rally drivers.

Flatout GR50 PRO – Top of the Line

Combines the GR50R hardware with 3-way reservoir adjustability.
This is our most advanced suspension, designed for stage rally and serious motorsport use.

Custom Configurations Available

We don’t list every variant of every suspension on our website. If we make a suspension for your vehicle, there’s a good chance we can build a custom configuration to meet your exact needs.
Just ask — our team builds what others won’t.