Description LS Intercooler Tubes: (Replace thoseheavy,and ugly,sand cast aluminum stock intercooler tubes!) Designed for your Lotus Exige S, S240, and S260. Our tubes are precision CNC mandrel bent from aircraft aluminum and anodized in black. Larger and smoother inner diameter for less flow restriction. – made in the USA to exact specifications (unlike the copycats) – official supplier to Lotus, UK – anodized black to prevent corrosion – simple, 10 minute installation Stock Exige intercooler tubes: 4.34 lbs, RLS tubes: 1.68 lbs.