flowfx

I put the flowmaster flow fx cat back kit on about 6 weeks ago and twice I’ve gotten the check engine light with the code P0402 which is the EGR valve is flowung more exhaust gases that it should. Has anyone else had problems when they switched their exhaust systems or should I just switch back...

I am looking for any insight on the aFe Quantum Pro Dry S vs the Roush Performance air intakes. I have found some short videos for the Roush and the metrics shown on the aFe site for the Quantum but no direct comparisons. I already have the Flowmaster FlowFX catback and want to make sure that...

Has anyone out there installed one of the FlowFX Cat-back Exhaust Systems yet?: https://www.holley.com/products/exhaust/exhaust_systems/flowfx/parts/717909 ...if so, could you please post a sound clip? Would love to hear the exhaust note and how it compares to Borla / Magnaflow / etc.