Don't wastr your money
If this is American Thunder it must be left over from the liw performance 1980's. Thid exhsust is quieter than the factor pipes...what a waste. I hope it rusts out fast so I have an excuse to throw it away, as for now I'm low on funds from this poir choice. Flowmaster should be embarrased I would never describe this as an aggressive sounding system. DO NOT WASTE YOUR MONEY!
This product was as advertised. I had my catalytic converter stolen from my truck so I purchased the Maganaflow catalytic converter had it installed and then I took my truck to have it smog tested and it passed. I would like to also thank Roy the customer service representative at auto anything. Thank you