Dinan exhaust valve rattle

[Mitch P.]

Hi all. I tried searching but didn't find anything. Is it normal for the Dinan exhaust fart cannon valves to rattle upon cold start? Mine rattle like a newly wed car leaving the venue??

[blown99]

I know this is kind of old but reviving because one of mine is doing this now

[Mitch P.]

Originally Posted by blown99

I know this is kind of old but reviving because one of mine is doing this now

Originally Posted by blown99

I know this is kind of old but reviving because one of mine is doing this now

I had my springs tightened and it went away, but is actually starting to happen again. Dinan support is quite good and I would recommend reaching out to them and asking for help.

[Cbozz]

Originally Posted by blown99

I know this is kind of old but reviving because one of mine is doing this now

oh no!! Can you post a video of the noise? which one is it?

[blown99]

Originally Posted by Cbozz

oh no!! Can you post a video of the noise? which one is it?

Messaged you

[Bobby_Drake]

How long have you had your Dinan exhaust? I've had mine for over 3 yrs (about 30K mi)...so far so good.

[blown99]

Originally Posted by Bobby_Drake

How long have you had your Dinan exhaust? I've had mine for over 3 yrs (about 30K mi)...so far so good.

Valves and spring are transferred over from oem. It's an 18 with 44k miles. Just replaced the springs and solved it. Now I'm thinking I should have just removed the springs and pinned the valves open. I don't think I ever want them closed 🤣🤔

[Mitch P.]

Originally Posted by Bobby_Drake

How long have you had your Dinan exhaust? I've had mine for over 3 yrs (about 30K mi)...so far so good.

Two yrs and maybe 20kmi on it, but it has been doing this since new. First fix was tightening the springs so maybe that needs to be done again or new springs.

[Mitch P.]

Originally Posted by blown99

Valves and spring are transferred over from oem. It's an 18 with 44k miles. Just replaced the springs and solved it. Now I'm thinking I should have just removed the springs and pinned the valves open. I don't think I ever want them closed 🤣🤔

Ah I didn't know that they were transferred from the OEM unit, good to know.

And agreed about pinning them open! I hate the one second wait and then forcing the flaps open during a cold start!

[blown99]

Originally Posted by Mitch P.

Ah I didn't know that they were transferred from the OEM unit, good to know.

And agreed about pinning them open! I hate the one second wait and then forcing the flaps open during a cold start!

Your flaps open during cold start?? Mine don't….wonder if my valves are shot 🤔.

Even more reason to take the springs out and pin them open ha. Not worth buying 2 new valves at $125 each

[Bobby_Drake]

Originally Posted by Mitch P.

Two yrs and maybe 20kmi on it, but it has been doing this since new. First fix was tightening the springs so maybe that needs to be done again or new springs.

Dinan has very good customer service. You should be able to have your issue resolved. Agree with new springs. Or you can just keep the valves open all the time.

[Mitch P.]

Originally Posted by blown99

Your flaps open during cold start?? Mine don't….wonder if my valves are shot 🤔.

Even more reason to take the springs out and pin them open ha. Not worth buying 2 new valves at $125 each

No you have to open them. I programmed M2 for them to open 👍 amongst a few other settings.

[Mitch P.]

Originally Posted by Bobby_Drake

Dinan has very good customer service. You should be able to have your issue resolved. Agree with new springs. Or you can just keep the valves open all the time.

Agreed and I'd suggest this to others as well 👍

[blown99]

Originally Posted by Mitch P.

No you have to open them. I programmed M2 for them to open 👍 amongst a few other settings.

I did too, I only use sports/+. I use BM3 to have it open the valves in that mode. However it's not right now. I'm going to reflash and see. Anyone know of the valves are on their own fuse? Maybe I have a fuse issue….?

[viktorhanacek]

You have to touch the pedal for flaps to open after you select sport mode. Fuse is 146.

[blown99]

Originally Posted by viktorhanacek

You have to touch the pedal for flaps to open after you select sport mode. Fuse is 146.

Thanks for the fuse info! I re flashed BM3 tune and now they work correctly. Weird but works. Glad to know the fuse for the future. Thank you!