http://www.autopartsdealer.com/flowmaster_stainless_steel_force_ii_exhaust_systems-p41178-p.html?utm_source=froogle&utm_medium=na&utm_campaign=froogle&utm_content=74695
http://www.autopartsdealer.com/flowmaster_stainless_steel_force_ii_exhaust_systems-p41181-p.html?utm_source=froogle&utm_medium=na&utm_campaign=froogle&utm_content=150405
Both are the same system, you just need the 6 cyl. version if you have the 6 cyl in your challenger, check with summit racing also on that system as it might be cheaper through them.
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