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How much quieter would a catted UPR be than the o/r UPR
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2004 SVT Cobra Black (500 RWHP/480 TQ)
Stieg Stage IV Port | 2.76 BilletFlow Upper Pulley | NGK's | SCT XCal II | Magnaflow Cat Back | UPR Catted x-pipe | Afco Dual Pass Heat Exchanger | LFP Intercooler Reservoir | Motive 3.90 Gears with 8.8 bearing kit | Billetflow IRS Brace | 60lb injectors | Diablosport MAF.ia | K&N | BAP | 315 Nitto DR's
The List:
2008 MazdaSpeed3 (stock)
2007 Subaru STI (gay) - sold
2004 SVT Cobra (502/480)
1998 Jeep Sahara (Stock) - sold
1992 Dodge Stealth R/T (Stock) - sold
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Linear Mode
