Injen Technology offers a Limited Lifetime Warranty to the original purchaser against defects in material and workmanship on all intake systems, air filters, and hydroshields. Injen Technology will replace, at no charge, any intake pipe, air filter, or hydroshield considered by Injen Technology to be defective. Any and all warranty coverage is limited to the repair or replacement of the defective part only, at Injen Technology’s discretion. Proof of purchase is required. The warranty does not cover incidental or consequential damages, damages caused from improper installation, nor does it cover the cost of installation or removal of the defective part or its replacement. All warranty items must be sent freight prepaid with a valid RMA (Return Merchandise Authorization) number and copy of original invoice.