[ba] Full cat back exhaust or bolt-on muffler??

jim rose sf5ktq at hotmail.com
Sat Dec 29 16:30:02 EST 2001


the more of the exhaust you replace, the bigger the gain will be. if youre
gonna bother at all, i would probably recc doing at least the catback.  for
that matter, if youre under there a highflow cat cant hurt either...

there will be a more significant gain from changing the exhaust on a turbo
car, vs an NA car [2.8]. if its a 2.8, i imagine the cooler sound and look
will be the most significant improvments with a minor boost in performance
[sounding fast does not equal fast, just ask the acura/honda/toyota kids].
ive never seen that big a gain on an na car with an exhaust system [american
v8's and vw 2litre's]. its always a minor improvement [though certainly
worth doing], until you run fancy manifolds.

the other end of the air pump [engine] can also benefit significantly from
efficiency assistance. airfilter's a no brainer, and a chip is probably a
good idea [esp if its a turbo], though the last chip-shootout article i read
in EC for the 1.8t suggested that all the chips cuse the intake charge temp
to bee too high [if memory serves right] i thin kthe author/owner was
leaving the stock chip in until other mods were made. again, just what i
recall, youll want to do research b4 screwing with the motor.


>From: Brandon Van Cleve <gbvc at yahoo.com>
>To: ba-group at audifans.com
>Subject: [ba] Full cat back exhaust or bolt-on muffler??
>Date: Fri, 28 Dec 2001 16:30:31 -0800 (PST)
>I am the proud owner of a 1997 A4,(all I can say is
>that I will ALWAYS own a QUATTRO!) but also a full
>time student and my wallet size is extra small. My
>first modification will be the exhaust system.
>I am curious to know if the extra money for the full
>cat-back exhaust will give me the extra performance I
>crave. Or, will a after market muffler will do the
>  I understand that by replacing the stock system will
>increase the size of the pipe, therefore allowing the
>engine to breathe easier. Is the performance I would
>gain by purchasing a $600+ system marginal?
>I had a 2000 golf completely tricked out w/ a Autotech
>cat-back system and was extremely happy with the
>Any thoughts on this matter would be greatly
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