Miltek - (2.75in, 200 cell metal cat) - 799.99
GHL - (3in) couldn't find any specific info on just the DP, if it's even sold alone.
Techtonics (2.5in, 400 cell ceramic cat)- $449.99
EIP - (2.5in, ???* cell ceramic cat ) - 499.90
EIP - (2.5in, catless) - $429.90
EIP - (3in, ???* ceramic cat ) -...