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Cobra Forums
2013-14 Shelby GT500
Whipple 2.9 Gen 3 Swap
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<blockquote data-quote="Streetpwr281" data-source="post: 15831439" data-attributes="member: 55660"><p>I’m definitely not planning on it but my tuners experience at this power level w hi-flo 3” cats vs o/r pipe is maybe 8rwhp - 10rwhp. 30rwhp maybe if you were going from the long OEM Cat section to a full o/r mid-pipe. We literally just substituted in 3” pipe for the maybe 8”- 10” long Stainless Works 3” Hi-Flo cats themselves. You can see right through the cats so I can’t imagine it’s much of an obstruction. All other exhaust was unchanged. Also, other Gen 2 to Gen 3 swaps on GT350’s and GT’s are seeing 50rwhp - 80rwhp from the results I’ve seen posted online by Whipple/Palm Beach Dyno so if anything my gains are on the lower end. Possibly due to rear inlet setup of GT500.</p><p></p><p></p><p>Sent from my iPhone using Tapatalk</p></blockquote><p></p>
[QUOTE="Streetpwr281, post: 15831439, member: 55660"] I’m definitely not planning on it but my tuners experience at this power level w hi-flo 3” cats vs o/r pipe is maybe 8rwhp - 10rwhp. 30rwhp maybe if you were going from the long OEM Cat section to a full o/r mid-pipe. We literally just substituted in 3” pipe for the maybe 8”- 10” long Stainless Works 3” Hi-Flo cats themselves. You can see right through the cats so I can’t imagine it’s much of an obstruction. All other exhaust was unchanged. Also, other Gen 2 to Gen 3 swaps on GT350’s and GT’s are seeing 50rwhp - 80rwhp from the results I’ve seen posted online by Whipple/Palm Beach Dyno so if anything my gains are on the lower end. Possibly due to rear inlet setup of GT500. Sent from my iPhone using Tapatalk [/QUOTE]
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2013-14 Shelby GT500
Whipple 2.9 Gen 3 Swap
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