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i currently have a apexi n1 dunk muffler. with custom turbo back piping. no cat or res. but i want the real deal. since i have a turbo could i get the apexi turbo back exhuast system, or would it be better to get the none turbo model? so basicly i guess im asking 3 inch exhuast or 2 1/2 exhuast?

sorry if its a stupid question.

 
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3 inch.

 
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really, i expect 2.5" is fine unless u run up over 12 psi then u get 3 inch

 
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thanks

 
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id say the 3 inch

 
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Best turbo exhaust is no exhaust

but 3" would be best, imo.

Unless you are running some n00b setup or something like that (~4 psi), then 2.5" should be fine.

 
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hey exturbo6...in ur profile it says...u got header and also a turbo kit...how does that work out?

 
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forgot to get rid of that.