<nodding> They're just a little slow to react, I think it's SP that do a boost actuated one that should be instant, add in a solenoid triggered by a Hobbs switch and you have an on demand free flowing exhaust that's quiet the rest of the time.
The "check valve" is used to prevent boost pressure entering the CC nothing more...
The PURGE line needs to be hooked up to some type of control either mechanical or electric so it will only purge under certain conditions as purging at idle will make your idle unstable, usually only purge...
Look at it this way your exhaust will only flow as well as the point of greatest restriction, this applies to ANYTHING that "flows" the restriction becomes a choke point.
It would work as long as you can be 100% sure of the alignment before tacking (a preheat on the housing would help)
I went the drill and tap route using a grub screw so it can be moved if needed.
Agreed of course you should measure everything to verify the block is a virgin, sorry misunderstood your first post as you didn't mention any of the tunnel ID's.
My point is if someone in authority see's this posted you may not have access to a tame inspector, it's happened here many times over the years.
Don't for a second think because SM is USA based no officials browse it. :(
Probably NOT a good idea to post this on an open forum....
I ended up building a custom system here that flowed 550rwhp @ 88Db while being tucked up and legal.
They exempt themselves ;)
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