Paxton's Air-to-Air Charge Cooler provides a more consistent discharge temperature allowing precise tunability for greater horsepower and torque gains. This charge cooler is made of welded aluminum with aluminum discharge tubing. Silicone sleeves, stainless steel clamps and all required fasteners are included for a true bolt-on installation. No battery relocation is necessary. A 3.48" (9-10 psi) pulley upgrade is also included. Please note: Adding this charger cooler to the NOVI-1200 or Vortech V3 Standard Output System will require ECM programming, which we can supply free of charge as long as you have a tune on file with us. We typically see gains of around 30-50hp from the cooler intake air temperatures and smaller pulley which included with this kit. If you currently have a polished head unit use the drop down above and select "polished" so your tubing will be polished.