www.thermalrd.com
their Stealth lineup features OEM styling combined with 100% stainless steel construction from the catalytic converter to the tips, and produces a deep, mellow sound. increased diameter tuned to the specific vehicle's output increases performance without sacrificing mid range power due to too large of a diameter pipe.
each bend is also made by a mandrel bender for less restriction.
this is by far the best exhaust i have ever owned.