So I have finally done adding Nameless Catless Resonated OP/FP and GReddy Supreme SP Catback last week. Crawford BPB is also installed.
A month before the GReddy CB, I have this rattling nose from FP every Cold start and it lasts for about 5-6 seconds. Adding the CB makes the sound louder. Currently OFT Stage 2 93 Octane with BPB Tune.
Done a full inspection under the car and there is issue with installation.
So I showed to the shop and very close friends about this. All said it's normal for the tune.
I even ordered another nameless OP/FP pipe with ball resonator and it's on the way.
Here I am just to re-assure that if there is something I can do to eliminate the rattle from the cold start. Please see the video below.
Thank you!
Video Link -