[Shotimes] con't exhaust question

[Ian Fisher]

replacing the mufflers alone won't do much unless you
replace the entire catback. What other mods do you
have on your car besides the Pro-M 80mm MAF?

Most people do the Y pipe first and a catback later
(if at all). I followed this route on my MTX and
noticed that both were beneficial. I suppose I am now
going to be asked to qualify that comment in one way
or another but all I can say is that it feels
stronger, seems to pull harder and is a bit smoother.

Ian

--- ROBERT SCHIRMER <1surferbum@msn.com> wrote:
> Gentlemen (and Ladies)
> 
> Some of the comments have come back on the exhaust
> system talking about the
> catback systems. I was under the impression that on
> the SHOs, the greatest
> restriction is from the Cats forward, and not behind
> the cats. Therefore, I
> was thinking about replacing the cats and forward,
> which means I can update
> the cats, and fix the Y pipe restriction.
> 
> However, some have commented that the Y pipe does
> not provide as bad as a
> restriction on a ATX, versus the MTX. Some have also
> commented that the Cats
> were bad cause the fuel mileage dropped. As far as I
> know, my SHO has never
> really gotten that good of gas mileage, but with a
> trip planned on Wednesday,
> I am going to be checking the MPG.
> 
> I recently upgraded to a 80 MAF from Proflow. So for
> additional HP, should I
> change the Y pipe and cats, or just the mufflers??
> Which replacement (Cats/Y
> pipe or mufflers) would give me an increase in
> Torque??
> 
> Thanks
> Bob
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