View single post by Jensen Healey
 Posted: 09-20-2005 01:57 pm
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Jensen Healey

Joined: 03-11-2005
Location: San Anselmo, California USA
Posts: 983
I have the 1 5/8" that were on the 40's when I bought them.  They may be original JH stacks.

I think its longer for horsepower and shorter for torque.