Exhaust Diameter - Pontiac GTO Forum
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post #1 of 7 (permalink) Old 07-28-2005, 10:42 PM Thread Starter
 
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Exhaust Diameter

Decided to go with Super 40 Flows on the Goat. Whats the diameter size on the stock '05 Goat? 2.5"? Thanks for any info.
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post #2 of 7 (permalink) Old 07-28-2005, 11:08 PM
 
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Stock on the Goat is 2.25".

2004 Pulse Red GTO M6 - New Era CAI, TB Bypass, CAGS, Custom Split Exhaust, SLP Sway Bar & Bushings, BMR Strut Brace, HID, Sans Spoiler, Sirius

2002 Quicksilver Z06 - A Few Upgrades

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post #3 of 7 (permalink) Old 07-29-2005, 05:12 AM
 
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WAM! (acronym for wait a minute) I thought the 05s had a larger diameter exhaust than an 04. Better measure it.

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post #4 of 7 (permalink) Old 07-29-2005, 10:10 AM
 
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With the Super Flow 40's that I put on this past Tues, I went with 3.75 inch tailpipes made by magnaflow. Thats the extent of what I know...besides knowing that you'll LOVE the sound!!!!

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post #5 of 7 (permalink) Old 07-29-2005, 11:56 AM
 
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2.5 on the 05's and 2.25 on the 04's......
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post #6 of 7 (permalink) Old 07-30-2005, 07:36 AM Thread Starter
 
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Sweet. Then super 40's (center in / center out), 2.5" diameter. Mmmmmmmmmm...cant wait.
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post #7 of 7 (permalink) Old 07-31-2005, 09:21 AM
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I measured the inside diameter of the exhaust tips on the SAP pipes. They read 2.5" each for 4 pipes. The same measurement on stock is more. I think they are 3" or 3.5" They are bigger than those on the SAP. The ones on the SAP give ya a total of 10" "sound efects" for everyone's listening pleasure.

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