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  1. #21
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    Quote Originally Posted by .justin. View Post
    Absolutely do. The L31 engines have some good gains to be had.

    What does one usually run. If you are going to be at carlisle for the truck nationals i might need to stop in.

  2. #22

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    just outta curiosity what kind of gains do you see on trucks like mine? and how much $ does it run?

  3. #23

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    Glad to Justin on here. Blackbear Tunes are worth the money. I met Justin in person and had him data log and tune my truck when it had approx. 2k miles on it. Now with 11k on it still no problems at all and runs like a champ.
    2008 Silverado 1500 Ext Cab 4wd LT1 Package with 20" wheel upgrade,K&N CAI, Magnaflow Catback Dual Side Exit, Tuff Country 2" Leveling Kit, Blackbear Tune, 6k HIDS Low and High Beams, 3K HID fog lights, LED tailight bar

  4. #24
    Jr. Engineer
    97chevz71's Avatar
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    Quote Originally Posted by 5speedsilverado View Post
    just outta curiosity what kind of gains do you see on trucks like mine? and how much $ does it run?

    I would like to know on mine also.

  5. #25
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    San Diego, CA
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    The gains differ from truck to truck, as there are so many factors, driver, engine, gas (octane and quality), and modifications.
    Black Bear Performance- Custom Tuning Solutions

    Authorized EFILive and MAGNACHARGER seller

  6. #26

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    so you couldn't give a low number on what someone with a truck like mine gained? my truck just has a throttle body spacer right now.

  7. #27
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    Well the TBS does nothing for you performance wise, just gives a whistle.

    Your HP would have a substantial increase because there is a lot of up top power to be had, and it would allow the truck to shift when it needs to (upping the rev limiter). On premium fuel, you would probably see 20-25 HP increase. On an automatic 4.8 we have seen a .8 sec 0-60 drop.

  8. #28

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    now i have a 5 speed not an automatic, would that make a difference in power? and the tbs improved my gas mileage, so it has payed for its self

  9. #29
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    You can expect around the same HP gains, maybe a bit more than the auto. If you are happy with the TBS, that is all that matters!

  10. #30

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    so is the tune upgradeable? like if i was to get headers or something?

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