longtube headers

So I recently got texas long tube headers and had them installed by a shop. I have been hearing a strange rattle from engine passenger side and decided to check around the headers and saw that a part of the headers is touching another part(have no idea what part that is) and there’s even a...

I have a 2015 Mustang GT. With Texas Speed Longtube headers that have a catted connection. I’ve noticed that there’s only o2 bungs before the cats themselves and not after. Do i get holes threaded in? is this intentional? If i get a tune, will i have to get dummy connectors? i’m all new to this.

So I have Texas Speed Catted Long Tube Headers for my 2015 mustang gt. I have a corsa extreme catback exhaust and a K&N Drop in filter. The car is STOCK. i was wondering if a tune would be required after installation. i’ve read that you don’t need a tune because it comes with O2 Extensions...

Is anyone having a problem with stainless power catted headers not fitting? I bought a pair for my 2020 Mustang GT and the shop has tried moving the motor mounts and all and it still will not fit the passenger side. The driver side fit fine. We sent the part to stainless and they claim it fits...

I just installed a set of long tubes and a new mid pipe. I had Borla Ataks with the active cables welded on the mid pipe due to figment issues. Problem I’m having now is my valves don’t work. I checked the wires and they seem fine. I didn’t find any blown fuses. I disconnected the battery for a...

So I ordered SCT BDX tuner with Steeda tunes for life for a 2016 GT. I have Texas Speed catless headers on order. When I was filling out the tune form I noticed it said "This will not turn the catalytic monitors off". Does that mean I can't use an offroad midpipe? If that's the case should I...