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2013-14 Shelby GT500
Straight pipes to Corsa extreme exhaust?
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<blockquote data-quote="Jam421" data-source="post: 16541391" data-attributes="member: 110985"><p>Given you have an H-Pipe different mufflers might help the raspy sound. Regarding the quite common deccel popping which many guys like ....Lund advised me that's a product of custom tune + free flowing exhaust where unburned fuel ignites and pops . They corrected it by tweaking my tune with "Hang Timing". This adds a bit of timing only on deccel until the car returns to idle. I can now deccel thru a gear from any rpm and popping is gone. The only drawback is when rolling up on a light or intersection the idle stays up around 12-1300 as I'm free rolling in...then within 5 seconds it drops to 950rpm idle. On a highway I feel no consequences of this tune tweak when I lift off the gas.</p></blockquote><p></p>
[QUOTE="Jam421, post: 16541391, member: 110985"] Given you have an H-Pipe different mufflers might help the raspy sound. Regarding the quite common deccel popping which many guys like ....Lund advised me that's a product of custom tune + free flowing exhaust where unburned fuel ignites and pops . They corrected it by tweaking my tune with "Hang Timing". This adds a bit of timing only on deccel until the car returns to idle. I can now deccel thru a gear from any rpm and popping is gone. The only drawback is when rolling up on a light or intersection the idle stays up around 12-1300 as I'm free rolling in...then within 5 seconds it drops to 950rpm idle. On a highway I feel no consequences of this tune tweak when I lift off the gas. [/QUOTE]
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2013-14 Shelby GT500
Straight pipes to Corsa extreme exhaust?
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