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6.2 Denali/Sierra should have dual exhaust!

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    • December 3, 2013 at 4:53 am #50098
      GT
      Participant

      Ordered new Denali 6.2 two weeks ago. Can’t understand why a 2K engine option doesn’t come with dual exhaust? Ram Hemi’s have duals (fake or not) but give you the look that a high output engine deserves. Duals might even raise the hp level another 10-20, better not see this offered at a later date.

    • December 3, 2013 at 9:10 pm #50141
      GM Authority Staff
      Moderator

      I’m right there with you.

      It seems that this is something that GM isn’t very good at doing, period. As far as I can remember, no Silverado or Sierra — no matter the trim level has ever had a dual exhaust. Only the Cheyenne Concept that’s supposed to be the “street performance truck” has dualies out back, but who knows if that will even make it to production?

    • December 17, 2013 at 11:50 pm #50693
      Main Wayne
      Participant

      420 horsepower thru a single catalyst I’m impressed !

    • February 1, 2014 at 9:53 am #53014
      Z15
      Participant

      Why? Because it cost them more to produce it with that. Save a nickle here, a dime there and they increase their profits.

    • December 27, 2014 at 1:41 am #81143
      594XXC
      Participant

      @GT: I don’t know which Denali you bought, the Yukon or or the Sierra, but the Sierras have a Borla dual exhaust option for $1295.

    • December 28, 2014 at 5:22 am #81226
      Z15
      Participant

      Dealer installed option, not factory although you can order it and then GM has the system dropped shipped from the supplier to the dealer once your vehicle is shipped. Its call an LPO, Limited Product Option. It has limited warranty, not by GM.

    • December 29, 2014 at 5:11 am #81292
      GT
      Participant

      I’ve been thinking about this, of course my wife won’t see any purpose behind this, but I believe it this is part of an “emissions recall” with the 6.2. lol

    • January 2, 2015 at 8:02 am #81666
      594XXC
      Participant

      As long as the single pipe is big enough to move the sufficient volume of air x at the sufficient pressure y, it really doesn’t make a difference if it is single or dual exhaust.

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