sr20 gaskets

[nissan_doctor]

Conceptua tuning in the UK or if you have more time the frsport in the US.

[Arnie]

I've a set of sr20det engine to mani gaskets, can't remember the brand but know that they will work.
Sometimes it's the nuts that come loose which can be overcome by locking manifold nuts or exhaust paste on the studs but it's messy.