FWIW, the JET II on my 2001 4.7 with just a Flowmaster catback and rubber
flap/air box snorkel removed, seems to do as advertised and thats with
87 octane (no pinging in the past 100 miles since the chip was added)
A 180 T-Stat, z-tube with the FLOW-PRO filter, and Autolite 3923s go on
next Tuesday, this should then give me the full benefit of the chips
potential.
On Thu, 21 Jun 2001 Signman615@cs.com wrote:
> In a message dated 6/21/01 7:33:25 AM Eastern Daylight Time, josh@stolarz.org
> writes:
>
> << Just have to be careful with stating numbers for the 4.7. Someone already
> put on 4.7 headers (signman?) and found they did absolutely nothing. If JBA
> does state the numbers, just make sure they can produce a dyno sheet to back
> it....
> >>
>
> That's right. I didn't get anything I could feel with the Borla's. I know
> Kenne Bell told me they were only able to squeeze out 7-10 HP with theirs.
> They had dyno sheets to show it but wanted $700 for a set. My Borla's cost me
> $390 shipping was free. They were a pain for my muffler man to put on. He had
> to cut the y-pipe to make them fit. The Jet Stage I chip is the exact same
> part no. for the 5.2, 5.9, and the 4.7. I tried one and got nothing from it.
> Maybe the Stage II is different who knows. In my personal opinion I would
> stay away from both of these mods. for the 4.7. Save your money.
>
> Paul
> 4.7L Kenne Bell Supercharged, Borla Headers. Magnum Performance TB
> Flowmaster Cat-back to single 3" pipe, cold air intake, 180 thermostat, ect.
>
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