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Posted by: jeffdon Jun 29 2010, 02:53 PM

My 2056 will be getting its first drive soon. My 40 IDFs currently have the stock "stacks" on them (see below) . They are about 1.5" high, and have a bit of widening in ID at the tops, but nothing like some of the velocity stacks i have seen.

Would I see much difference in going to an aftermarket stack? Seem to remember Mr. Raby once saying that 1 7/8" seemed to give good benefits to most street motors.

Posted by: dinomium Jun 29 2010, 04:16 PM

QUOTE(jeffdon @ Jun 29 2010, 01:53 PM)

My 2056 will be getting its first drive soon. My 40 IDFs currently have the stock "stacks" on them (see below) . They are about 1.5" high, and have a bit of widening in ID at the tops, but nothing like some of the velocity stacks i have seen.

Would I see much difference in going to an aftermarket stack? Seem to remember Mr. Raby once saying that 1 7/8" seemed to give good benefits to most street motors.

Posted by: jeffdon Jun 29 2010, 04:25 PM

[/quote]
2 inch chromed stacks look very kewl... cant seem to locate any of mine right now...
[/quote]

Oh, no doubt. But do they DO anything?