Sealing up a tunnel dump exhaust

[kinger]

How is everyone sealing around the exhaust pipe when doing a tunnel dump exhaust given that the pipe moves with the motor? I will have twin 3" pipes going through the tunnel and looking for a clean way to keep the exhaust in the tunnel.

 

[kinger]

Finished my boost cutout exhaust converted from a 3” dump.

Will be a 3” dump at 6psi and otherwise go through the 2nd pipe with baffle in it.

Going to seal up with hi temp caulk and see how it works.


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[kinger]

Fired this and its quiet as stock! woohoo