- • Fit 88-99 Chevy/GMC trucks and SUVs (2WD & 4WD) 5.0L/5.7L(305/350 cu. in.)
• Full length design for power gain from mid to high RPM range
• Long transition collector for decreased back pressure
• Fully mandrel bent tubes made of 16-gauge mild steel
• Head flanges laser-cut from 5/16-inch thick steel plates
• Flanges flattened by hydraulic press for precise and leak-free seal
• All joints TIG welded for resistance against cracking and wearing
• Black paint coating that withstands up to 500 degrees Celsius
