In case anyone cares:
Off of Ion's website
Warranty: All of our exhaust products manufactured by Brullen (will be explicitly shown) are covered by a limited lifetime warranty against defects from factory. Please note that warranty will not be valid if the product has been modified without our consent, damaged in an accident, or abused. Normal wear and tear is not valid basis for a warranty claim.
For a warranty claim, a Warranty Return Number (WRN#) must be obtained, or no processing of the claim will occur.
Any product that has been used in competition (ie: not normal street use) will void its warranty automatically.
Products not manufactured by us will carry a manufactures warranty that will be handled accordingly. Warranties will be provided for factory defects only. Warranty claims are subject to submission to the manufacturer for approval for repair or replacement of merchandise. iON Performance does not honor warranty caused by shipping carrier, improper handling or installation, any modification, neglect or abuse. All defective merchandise will be either repaired or replaced at the sole discretion of iON Performance from evaluation. No warranty will be honored without WRN#.
Negligence on by the user is not the basis of a valid warranty claim. (ie: installing an exhaust system incorrectly, and causing damage to the part)
We are not responsible for reimbursement of costs associated with a warranty claim. (ie: rental car, labor charges etc).
This is the only thing I could find on Spool's website
We offer the most comprehensive warranty program on the market. All parts are manufactured in house by Spool to insure superior quality and craftsmanship