E60 M5 and E61 M5 Touring Discussion
Gentlemen,
I had been debating about doing catless headers on my car for a while now and turned to actually putting some bucks down on a set. Now let me tell you, I love the V10 note with the RPI (Section 1, 2 & 3) I currently have. Its simply majestic, amazing and balanced in terms of melody...