There is no warranty on exhaust pipes and mufflers with regards to any discoloration. Discoloration or "blueing" is caused by the characteristics of tuning. It is the purchasers responsibility to ensure correct fitment & compliance with state and local emissions regulations.
Aftermarket parts may require modification and advanced mechanical skill and knowledge to install.
All aftermarket parts will have a fixed shipping rate added upon checkout
No aftermarket parts may be discounted