Quick view G-Sport GESI G-Sport 400 CPSI GEN2 EPA Compliant 6in x 4in Substrate Only Up to 1,200HP - 85600 Compare $1,096.39 $1,041.99 6.00" x 4.00" - GEN2 EPA Compliant G-Sport Ultra High Output-X Substrate Only - Up to 1,200HP - 400 CPSI. Add to Cart Add to Cart