EVO All Evo Model Discussion

Thunderheader difference in rear pipe design?

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Old Oct 9, 2019 | 04:57 PM
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Default Thunderheader difference in rear pipe design?

Is there a difference in performance in the #1017 (wraps around the front of cone) vs #1027 ( S curve behind cone)?

Exhaust would be going on 98 heritage classic, wood 6, 10.1, hillside heads.
 
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Old Oct 9, 2019 | 11:39 PM
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Well, guess the 1027 is listed as both designs of pipe. Just curious if the length of pipe is of any noticeable difference is the way the engine reacts?

Would think they have both designs where both front and rear pipes are at the optimum length. But, that's why I'm asking.
 
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Old Oct 10, 2019 | 06:28 AM
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Maybe to fit floorboards vs forward controls
 
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Old Oct 10, 2019 | 07:56 AM
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Either one, the Thunderheader is a tuned pipe. Don't sweat the small stuff.
 
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