Post pics of your GX380 GX270 Predator 389cc and 420cc exhaust!

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dwcopple

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I just mounted a 420cc Predator in my tractor. The exhaust needs to be moved for me to use my OEM sheet metal. The dang Predator is not NPT threaded in the exhaust port...argh. I will need to weld up something. If anyone has a spare stock manifold pipe lying around, PM me. I want it. Let's see what you guys did!!!
 

bob58o

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Robertson Torque Tube H Loop from kartpipes.com via bullfrog motosports.
That link has some other cool pipes too.
 

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mckutzy

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Ya big block have an actual manifold then separate exhaust muffler.
Maybe make a flange that fits the exhaust port using the manifold as a template... Weld a pipe fitting to accept pipe threads... And Carry on with how you want it...
 

dwcopple

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Ya big block have an actual manifold then separate exhaust muffler.
Maybe make a flange that fits the exhaust port using the manifold as a template... Weld a pipe fitting to accept pipe threads... And Carry on with how you want it...

Yeah, I inquired robertson's above about a flange. I could just weld a coupler to that and use black pipe from there on out. Good freakin idea!
 

mckutzy

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If you really don't mind that look... Ya it's a simple one...
At least the pipe fittings are easier to weld than I'm guessing the manifold of mystery cast metal...(Ok the fittings are probably more mystery then anything... But hey, already have a bit of track reccord.)
 

dwcopple

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this is one solution
 

Joe-405

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I really liked the header that's $39.99 from Vegas karts ...................

I just cut the end at the bend and welded the tip back on to fit my application.
 

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