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  1. Performance Modifications for the NG900 / Old 9-3
    What up? I've got a 99 9-3 HOT and am on the verge of a Stage 4 car, here's what I have: TD04 GS Intake Saabsport exhaust Upgraded intercooler Forge BOV Here's what I think need: Tuned ECU 3" DP 3.5 FPR ??? My questions are; 1. Do I need the 3.5 FPR and at what point will I need to upgrade...
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