Originally Posted by felixd exhaust doesnt do much without header n cat upgrade actually with the way the CL9's exhaust is setup... you shouldnt get any gains at all lol!
2003 CL9 5AT *ECU REFLASHED* CT-E Icebox|Ralco RZ pulleys|K&N filter|DC Header|250cell Cat|Cusco Tower & H Brace| H.Drive Coilovers | Rays RE30 18x8.5 | S/S Brakelines | Rigid Collars
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Originally Posted by felixd
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