DISCLAIMER: This is a made to order item. The lead time for this product is 4-8 weeks.

Flatout GR40R Heavy-Duty Coilover System for 2019–2025 Subaru Ascent

The Flatout GR40R Coilover System is engineered for 2019–2025 Subaru Ascent owners who demand extreme off-road performance, long-term durability, and load-carrying capability. Based on the proven GR40 rally-strength platform, the GR40R adds external reservoirs on all four shocks, providing fade-free performance even under heavy loads and punishing terrain.

Built for overlanders, expedition vehicles, and adventure rigs, the GR40R keeps your Ascent performing optimally when carrying rooftop tents, spare tires, recovery gear, or off-road trailers, tackling rocks, washboard trails, or long backcountry drives.

Key Features of the GR40R Coilovers

• 0–3” Adjustable Ride Height → customize stance, ground clearance, and tire fitment.

• External Reservoirs on All Four Shocks → increased oil capacity for cooler, fade-free damping.

• Inverted Heavy-Duty Shock Design → rally-proven durability for extreme off-road conditions.

• Bypass Piston Valving → smooths washboard roads and absorbs big impacts and drops.

• 1-Way Rebound Adjustability → fine-tune suspension for heavy loads or technical trails.

• Overload-Capable Springs → optional spring upgrades for heavily equipped rigs.

• Rebuildable Design → serviceable for long-term expeditions.

• Electroplated Shock Bodies → corrosion-resistant for mud, snow, and salt, rated 7–10 years.

Who Is the GR40R For?

• Overlanders & Expedition Vehicles → perfect for heavily loaded SUVs and trucks.

• Hardcore Off-Roaders → designed for rocks, sand, mud, and rugged trail conditions.

• Adventure Builds & Heavy Rigs → handles armor, winches, bumpers, and spare tires without sag.

• Long-Term Reliability Seekers → for drivers who need a suspension built to last.

Customer Benefits

• Fade-free performance with reservoir shocks on all four corners.

• Stronger and longer-lasting than standard shock and spring combos.

• Adjustable rebound for on-road comfort and off-road control.

• Handles heavy loads without sagging or instability.

• Built for trails, expeditions, and backcountry adventures.

The Flatout GR40R is the ultimate heavy-duty coilover upgrade for the Subaru Ascent, giving serious off-road and adventure drivers the strength, adjustability, and durability they need for every journey.