Eibach XT Barrel Coil-Over Spring - 2.5 to 3 in ID - 16 in Length - 125 lb H769001M Spread port heads have the

Spread port heads have the center exhaust ports spread apart 5/8'' over stock L98 GM heads

Provides up to 57% reduction

Flows 100 Percent Better Than Stock

Stainless Steel Outer Braid

Smooth top breather

Eibach XT Barrel Coil-Over Spring - 2.5 to 3 in ID - 16 in Length - 125 lb H769001M Spread port heads have theEibach ERS 16. 00 in. Length x 2. 50 in. ID XT Barrel (Extreme Travel) Spring Product Description: Coil Spring XT Barrel Coil Over Barrel 2. 5 to 3 in ID 16 in Length 125 lb in Spring Rate Red Powder Coat Eibach has been committed to creating the finest race springs in the world for over two decades. Eibach products are created to meet the extreme requirements of racing from Le Mans to Daytona. Eibach produces the finest racecar springs in the world.