Flatout Suspension 05-08 Audi A4 B7 [GR40] GR4-AUDIA4B7

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

The Flatout GR40 Coilovers for the 2005-2008 Audi A4 B7 are engineered for drivers who demand precision, durability, and consistency in rally and motorsport competition. Designed as a 0–2” adjustable rally suspension system, the GR40 allows you to increase ride height and fine-tune chassis setup for tarmac, gravel, or rallycross conditions while maintaining control and structural integrity under extreme use.

Built to handle punishing terrain and repeated high-speed impacts, the GR40 features inverted front shocks for maximum strength and reduced flex. Select applications include external reservoir rear shocks, increasing oil capacity for improved cooling and fade resistance during extended competition sessions.

Flatout’s proprietary rally valving combined with bypass piston technology delivers compliant behavior over small surface chatter while maintaining control during aggressive driving. Soft rate LPS 2.5 ID linear springs provide comfort during transit stages and consistent performance in competitive environments.

OEM-style top mounts preserve quiet operation and minimize NVH, while electroplated shock bodies offer 7–10 years of corrosion resistance. The fully rebuildable coilover design ensures long-term serviceability and race-ready longevity.

With 1-way rebound adjustment offering 20 points of tuning and backed by a 3-year warranty, the GR40 is proven in rallycross and grassroots motorsport applications where reliability and consistency are critical.

FITMENT

Vehicle: Audi A4 B7
Years: 2005-2008
Chassis: B7
Application: Rally, rallycross, and motorsport competition
Ride Height Adjustment: 0–2" increase over OEM

Key Features

0–2" adjustable ride height increase
Inverted front shocks for rally-grade strength
External reservoir rear shocks on select applications
Proprietary rally valving with bypass pistons
Soft rate LPS 2.5 ID linear springs
OEM-style top mounts for reduced NVH
Electroplated shock bodies with 7–10 years corrosion resistance
Fully rebuildable coilover construction
1-way rebound adjustable with 20 tuning points
3-year manufacturer warranty