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It is a cooper pipe.

Cant tell what size-need deminsions.

Wish they were still available.

 

Tom

so what made them so good..or better than the next pipe? i have a brand new .80 size pipe and ran it on a VAC .91 and it was not so great...others say to run it on a 1/8 scale unl?? not a pissing session,just looking for opinions..

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I tried a cooper on my nova 67 mono and with limited testing it was surprisingly good.

The engine is nearly broken in so I will test some more,,Nice and quiet but also unassuming ..This one is 2.238" across at widest with .425" stinger ID.

post-19417-0-34194400-1526091512_thumb.jpg

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Randy, You see, I was also right. Irwin sold to cooper. Who is the non believer now? I run mine in a scale, sprort40 and and a cat with an ops80. The same size pipes and I can't find a better pipe. They are not really very restricted but I get 76db's out of them.

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