40 hp from a chipflash and a cat-back? I don't believe it.
Dennis
> -----Original Message-----
> From: Douglas Bowerman [SMTP:doug_b@officetech.net]
> Sent: Thursday, September 02, 1999 11:35 AM
> To: dakota-truck@buffnet.net
> Subject: Re: DML: Exhaust Systems! Are They Worth IT? Info from
> Truckin on Silverado
>
> Hey All,
> In Truckin there was that article about 99 Chevy Silverado and an
> addition of cat-back.
> Here's a snippet. I might violate copyright, but it's for info
> purposes. Why can't we get this much out of our Dakotas???
>
> ------Snip------
> In stock form (the truck) managed to produce an average of 159.2 hp at
> the rear wheels. The truck whent to TTS, where Cole downloaded the
> PowerLoaderII into the Chevy's computer. The PowerLoaderII simply plugs
> in to the access port of the computer and loads itself. Cole
> preprograms the downloader to your truck's specific needs and puts this
> information in to the downloader. ... The second phase of our upgrade
> was to install the TTS exhaust .... blah blah blah ... the OBD-II
> computer systems is that the PCM has a tendency to pull out lots of
> timing if there is any sign of detonation. This the dyno test is done
> with anywhere from 5-20 degrees of timing retard... blah blah... With
> two good runs in, the Dynojet showed that the truck made an average of
> 198.2 hp to the rear wheels.
> ------Snip------
>
>
>
> Bryan West wrote:
> > and 1 or so miles per gallon. I haven't heard anything on the actual
> > mileage reports, and the best increase I've heard of being dyno'd off an
> > engine that only had the cat-back thing done is 9 HP. For the 400 to
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