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Originally Posted by RamJet502
The TBSS is probably tuned more aggressively from the factory. I bet they detune the Silverado for increased engine longevity.
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the extra 30 or so horsepower would really hurt it that much you think? its still kinda strange to me. there isnt much different between the two engines- some materials, compression ratio, and recmonded fuel. its also weird how the tbss rev max is 6600 and the vmax is 6000 rpm's.