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Message: [QUOTE="Hoseclamp, post: 1386827, member: 25955"] Mods are in the sig, this truck is the strongest 6.7 I've had (4th since 2011), I was looking for improved mpg with a ******, a bump in power sure why not, but it runs bad. The turbo lag is awful. [url]https://youtu.be/kxz61-uzsqs[/url] I've tried a few different tuners, a BD 40928, running a SCT live wire right now, trying a few different tunes from the vendor, we are not having success. Anyone have an idea what it runs so poorly now below 20lbs boost? Can it be tuned out? I have no intake leaks, everything is tight, threw in new MAF in it also for safe measure. Any insight would be appreciated. [/QUOTE]

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