AWeb80 Posted November 22, 2002 Report Share Posted November 22, 2002 I was on the rsmracing.com website and saw a 61 mm throttle body for a 3100 grand prix. here is the link. http://webhome.idirect.com/~rsm1/otra.htm I was wondering if anybody has this on their car or heard of anybody that has it. does it help with performance and what are some specs. on it. Is it worth getting. Thanks. Quote Link to comment Share on other sites More sharing options...
RedZMonte Posted November 22, 2002 Report Share Posted November 22, 2002 I wonder how a 3400sfi T/B compares to a 3100SFI T/B. I know they are interchangeable from a few different years. larger ports means more air flow. then if you hone/port&Pollish the manfiolds you will get yet more gains. Quote Link to comment Share on other sites More sharing options...
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