Im new here and am writing to find what type of exhaust most of my fellow eclipse owners like. Im about to purchase one for my 97 GSX and am looking for some suggestions about the one Im looking at and wondering if anyone knows of anything better.</P>


Im looking at thisHSK Cat-back. Your input is very appreciated.</P>

 

I have the Apexi N1 and am quite happy with it.<IMG src=smileys/smiley17.gif border="0"> I just want to upgrade to 3" piping soon so I haven't decided if I'm going to get the same type again or not.

 

i have a flowmaster, yes a flowmaster. most people dont kno that they make them for imports also. im happy with my 3" piping Spyderman go for it.

 

<SPAN style="FONT-SIZE: 8.5pt; FONT-FAMILY: Verdana">What’s with the 3" piping. (Sorry if I’m a little naive, I’m new to all this but learning) Is it something I should look into before spending money on a new exhaust? <?xml:namespace prefix = o ns = "urn:schemas-microsoft-comfficeffice" /><o></o></SPAN></P>


<SPAN style="FONT-SIZE: 8.5pt; FONT-FAMILY: Verdana; mso-fareast-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA">I would rather spend my money wisely and get something quality than just to get something quick and find down the road I don’t want it. Thanks again for your help.</SPAN></P><edited><editID>EclipseGSX97</editID><editDate>38093.3990162037</editDate></edited>

 

3" refers to the size of the piping. Eclipses come with 2.5" stock sized piping. Generally the bigger you go, the better performance you'll get. But you can go too big....as you'll see there aren't many 3.5" systems and no 4" systems. The bigger the piping, the less backpressure is in the exhaust side of the engine. On turbocharged vehicles no backpressure is a good thing. If there is some backpressure, then it's alright, if there is too much, then it will "flow" back into the turbo and damage the exhaust turbine wheel. Now, exhuast gasses pass leave the engine in pulse, kind of like waves. Very fast fast pulses, but you can still feel them at idle. If you have too large piping, say 4", then the pulses would dissipate and create sort of a barrier for the oncoming pulses. Not good, because it may create backpressure, but most importantly, the pulsetraveling through the exhaust system creat sort of a vacuum that *pull* the exhaust gasses away from the engine into the exhaust system. A larger diameter piping will not allow the exhuast gasses to create a strong vacuum and will ruin the flow of exhaust gasses. You need a careful balance of sizing to reduce backpressure and also not screw up the flow, and a three inch system seems to be an equilibrium on turbo eclipses. This may be more info than you needed, but hey, atleast you learned!</P>

 

the size of the piping man.</P>


<FONT size=2>(Sorry if I’m a little naive, I’m new to all this but learning)</FONT></P>


<FONT size=2>not being naive, just learning<IMG src=smileys/smiley2.gif border="0"></FONT></P>

 

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<SPAN class=bold1><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 10pt; FONT-FAMILY: Arial">SpyderGS,</SPAN></SPAN><SPAN style="FONT-SIZE: 8pt; FONT-FAMILY: Verdana"><?xml:namespace prefix = o ns = "urn:schemas-microsoft-comfficeffice" /><o></o></SPAN></P>


<SPAN class=bold1><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 10pt; FONT-FAMILY: Arial">Thank you for that Exhaust 101 course. I never knew that information. I just received my tax return so I will be searching here once I get some time for a system w/ 3" piping for my car.</SPAN></SPAN><SPAN style="FONT-SIZE: 8pt; FONT-FAMILY: Verdana"><o></o></SPAN></P>


<SPAN class=bold1><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 10pt; FONT-FAMILY: Arial">Another question though. I have a few exhausts in mind, some being made for the GST. Would these exhausts cause problems on the AWD GSX?</SPAN></SPAN><SPAN style="FONT-SIZE: 8pt; FONT-FAMILY: Verdana"><o></o></SPAN></P>


<SPAN class=bold1><SPAN style="FONT-WEIGHT: normal; FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA">Again thanks for the help. I really appreciate it!</SPAN></SPAN></FONT></SPAN></P><edited><editID>EclipseGSX97</editID><editDate>38108.4803009259</editDate></edited>