Exhaust gasket tip

[Theshur]

Hello,

For those who have changed their exhaust, what did you use to connect the manifolds to the Y-Pipe in terms of gaskets and screws? 
One of my manifolds unscrewed  and I'm thinking of using screws of this type (with spring): https://www.akr-performance.fr/p/srs-boulon-ecrou-et-ressort-dechappement-bs-870

And in terms of gaskets, what do you think of Donut-type gaskets? https://www.akr-performance.fr/p/honda-joint-dechappement-donut-76mm300-18229-s6m-a51

Is it useful to add these gaskets? https://www.akr-performance.fr/p/srs-joint-de-bride-dechappement-2-trous-76mm300-ga-a

In short, what do you recommend for sealing and fixing the manifolds to the Y-Pipe?

Thanks in advance.

++ Shu

[Theshur]

Little up 🤷‍♂️😀