I had installed a Borla Dual-tip/"Hush-Back" on my '02 WRX Wagon years ago and I remember I used some longer urethane exhaust hangers because the muffler tips came pretty close to the bumper.

Now I'll be doing the same thing to my '07 WRX Wagon and wondering if it's still required? Do I need to replace all 3 hangers with longer ones or just the 2 at the rear?

Any advice on what specs/brand & p/n appreciated for what folks are using these days.
Thanks