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Clown Puncher

05-21-2004 04:19 PM

What size exhaust ...

What size exhaust is on a 71'... is it 2" or 2 1/4" or 2 1/2" ? I want to put the original size on there.

Gordonm

05-21-2004 04:48 PM

Re: What size exhaust ... (Clown Puncher)

Only the LT1 and the BB had the 2 1/2 inch. The standard SB got a 2 inch system. For performance I would install a good 2 1/2 inch system. The stock 2 1/2 pipes are bent and squished which lowers the flow.

flynhi

05-21-2004 08:24 PM

Re: What size exhaust ... (Clown Puncher)

With either size, you will see some benefit from mandrel bends in the pipes.

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