Lewis124 Posted March 3, 2020 Share Posted March 3, 2020 Hi I’m thinking about doing some track days later in the year. At the moment I've got an WEPR ct9 top mount with an external wastegate and screamer. At the moment it’s fairly loud on fall chat what I personally don’t mind but won’t pass noise testing so what’s the best way to get it quieter to pass noise testing ? Quote Link to post Share on other sites
TrisK Posted March 4, 2020 Share Posted March 4, 2020 plumb the screamer back into the decat Quote Link to post Share on other sites
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