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Discussion Starter · #1 ·
Anyone ever remove the chokes or inserts from the outlets on a set of brp twin pipes? Was told you leave them in for 600 engines and remove them to make the outlet bigger for 800 any truth to this???

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Truth. However the length of the pipe before the expansion may have been changed to alter for rpm of the engine. Trygstad would be the guy to talk about this.
 
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