Rossi ep91 Posted August 23, 2010 Share Posted August 23, 2010 hey guys!im running a wepr ct9 power up kit with the external wastegate manifold the screamer pipe then runs from the wastegate back into the downpipe.my cars been mapped already im thinking about cutting the screamer pipe off welding the downpipe back over and extending the screamer pipe to have a external screamer will this affect my map or not???i just want noise!!! cheers! Quote Link to post Share on other sites
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