Originally Posted by lippi
Ilia, would let me test the AMS catless downpipe?
Your car will be a beast with downpipes.
Originally Posted by star21
When you mentioned a reputable company making the downpipes you definitely weren't kidding!
I've noticed several of the other tuner downpipes on the market currently have no provisions for a flex section. I'm assuming most are deeming them unnecessary? The only one I've seen so far with a flex section is the Agency Power.
Good question. At this point I can't speak to whether or not the car needs a flex section in that position. Typically cars with soft engine mounts that allow a great deal of engine motion under load or exhausts that move significantly would need a flex section, and from what I've seen the F10 M5 does not have either issue. It may be that a flex section is not necessary, but we will test this thoroughly as soon as the car returns from California.