BMW E30/E36/E46 - Rear True Coilover rear shock mount. *race only* – Ground Control Suspension Systems
These Genuine BMW Strut Tower Reinforcements came factory on all BMW E46 Xi models but are highly recommended for all regular 3 Series and M3's,
Front Strut Tower Reinforcement Kit - BMW E46 3 Series & M3
Garagistic E46 High Adjustment Upper Strut Mount Reinforcement Plate
How To Reinforce BMW E36 M3 Strut Towers
VAC - BMW E36 and E46 Front Strut Tower Race Reinforcement Kit
VADER SOLUTIONS - E36 E46 E9X E8X E6X Valve Cover Breather Fitting (VS – Drift HQ
BMW E36/ E46 Front Upper Strut Mount Reinforcement Plates
Front Adjustable Strut Bar BMW E46
Front Adjustable Strut Bar BMW E46
Front Strut Tower Reinforcement (E36/E46/E9X/E8X)