Flatout Suspension GR40R Coilovers - 2019-2025 Subaru Ascent
Flatout Suspension GR40R Coilovers - 2019-2025 Subaru Ascent
Flatout Suspension
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PRODUCT DETAILS ▾
Flatout Suspension GR40R – Heavy-Duty Coilover System with External Reservoirs
The Flatout Suspension GR40R is engineered for rigs that demand endurance, strength, and control over rough terrain. Built for serious off-roaders, overland explorers, and adventure rigs, the GR40R enhances the proven rally-strength foundation of the GR40 by integrating external reservoirs on all four shocks. This design dramatically increases oil capacity, keeping temperatures low and performance consistent over long, demanding routes. Whether hauling gear, towing, or tackling harsh trails, the GR40R delivers reliability and handling that won’t quit.
Who Is the GR40R For?
Overlanders & Expedition Builds → Ideal for rigs equipped with rooftop tents, full gear, or tow setups.
Hardcore Off-Roaders → Delivers strength and cooling performance for demanding trail and rock conditions.
Heavy-Build Vehicles → Supports added weight from winches, bumpers, recovery gear, and spares.
Adventure Enthusiasts → For those seeking a rugged, fade-free suspension that lasts through every adventure.
DETAILS:
-
0–3” adjustable ride height for custom clearance and larger tires
-
External reservoirs on all four shocks for improved cooling and fade resistance
-
Inverted heavy-duty shock design for proven rally-level durability
-
Bypass piston valving smooths washboard surfaces and absorbs big hits
-
1-way rebound adjustment for tuning between comfort and control
-
Overload-capable springs with upgrade options for heavy-duty builds
-
Fully rebuildable design for long-term expedition and off-road use
-
Electroplated shock bodies with 7–10 years of corrosion resistance
-
Fade-free damping from external reservoir construction
-
Handles heavy loads and extended travel without sag or instability
-
Adjustable rebound for on-road comfort and off-road control
-
Long-lasting, corrosion-resistant, and fully serviceable design
-
Perfect suspension upgrade for explorers and weekend adventurers alike
WHY WE CARRY THIS ▾
We only list parts we’d run ourselves or recommend to a friend building a real car. If it feels vague, unverified, or inconsistent, it doesn’t make the cut.
- Fitment-first mindset — no “universal” roulette
- Brand reputation matters — we favor proven manufacturing
- Support that actually responds with real answers
WHAT TO EXPECT ▾
This is the clean path: correct fitment, clean install, and results that match the intent.
- Install-ready experience with correct mounting where provided
- Finish that holds up to real driving, not just photos
- Selections on this page drive the exact fitment shipped
TRUST, BUILT INTO THE PROCESS.
Anyone can list parts. We curate what belongs on a serious build. Our goal is simple: fewer surprises, cleaner installs, and confidence when you hit “Buy.”
Fitment checked
We prioritize vehicle-specific listings and clear selection logic so you’re not gambling on compatibility.
Brand discipline
Proven manufacturing and consistent quality matter more than hype. We bias toward what actually holds up.
Real support
If you have a question, you’ll get a human answer that helps you finish the build — not a copy-paste shrug.
Flatout Suspension GR40R – Heavy-Duty Coilover System with External Reservoirs
The Flatout Suspension GR40R is engineered for rigs that demand endurance, strength, and control over rough terrain. Built for serious off-roaders, overland explorers, and adventure rigs, the GR40R enhances the proven rally-strength foundation of the GR40 by integrating external reservoirs on all four shocks. This design dramatically increases oil capacity, keeping temperatures low and performance consistent over long, demanding routes. Whether hauling gear, towing, or tackling harsh trails, the GR40R delivers reliability and handling that won’t quit.
Who Is the GR40R For?
Overlanders & Expedition Builds → Ideal for rigs equipped with rooftop tents, full gear, or tow setups.
Hardcore Off-Roaders → Delivers strength and cooling performance for demanding trail and rock conditions.
Heavy-Build Vehicles → Supports added weight from winches, bumpers, recovery gear, and spares.
Adventure Enthusiasts → For those seeking a rugged, fade-free suspension that lasts through every adventure.
DETAILS:
-
0–3” adjustable ride height for custom clearance and larger tires
-
External reservoirs on all four shocks for improved cooling and fade resistance
-
Inverted heavy-duty shock design for proven rally-level durability
-
Bypass piston valving smooths washboard surfaces and absorbs big hits
-
1-way rebound adjustment for tuning between comfort and control
-
Overload-capable springs with upgrade options for heavy-duty builds
-
Fully rebuildable design for long-term expedition and off-road use
-
Electroplated shock bodies with 7–10 years of corrosion resistance
-
Fade-free damping from external reservoir construction
-
Handles heavy loads and extended travel without sag or instability
-
Adjustable rebound for on-road comfort and off-road control
-
Long-lasting, corrosion-resistant, and fully serviceable design
-
Perfect suspension upgrade for explorers and weekend adventurers alike
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