rear cats

[Houstonsrt10]

I installed an x pipe and some magnaflow magnapacks on my qc today it sounds pretty good however I left the rear cats on there should I take em off and what will it do will it give more power or deeper sound etc............

 

[FATJACK]

Will help the sound and the power.

 

[bigike]

You can take off you mids and run a long pipe in there and break the big front ones up

It's free