Best way to route exhaust pipe - TCCoA Forums
 
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post #1 of 11 (permalink) Old 02-18-2011, 08:28 AM Thread Starter
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Best way to route exhaust pipe

I have a 1996 cougar 4.6 and I want to get rid of the giant cat in the middle cut the single pipe and run two pipes to the back to turn it into a true dual. I want to know how big of pipes I can use and the best way to route them. Also is there any significant gain to be made with this set up power and/or gas wise? I will be keeping the two cats at the front of the car.. just don't see a reason for a giant 3rd one, or why they just didn't make it a true dual to begin with.
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post #2 of 11 (permalink) Old 02-18-2011, 08:39 AM
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Run them in the stock route. I have 2.5" true duals that fit in there pretty easy. You can get the Mandrel Exhaust Systems kit which is a great buy for the price.

~Jeff

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post #3 of 11 (permalink) Old 02-18-2011, 08:51 AM Thread Starter
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I actually have a guy who's charging $120 to do the work. So 2.5" pipes will fit nicely then awesome. I plan on adding a new plenum and a 75 mm throttle after dualing, but a little later down the line.
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post #4 of 11 (permalink) Old 02-23-2011, 12:49 PM
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I got the mandrel 2.5" true dualswith X cross over and magnaflows..Love it..

You can go as fast as your money will let you
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post #5 of 11 (permalink) Old 03-01-2011, 07:25 PM
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I did a custom 3", true dual exhaust and the routing was interesting but it worked. Around the gas tank and differential we go!
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post #6 of 11 (permalink) Old 03-01-2011, 07:40 PM
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Wow 3" duals. What kind mods were you running?

Will

The Texas Green Bird (An undeveloped work of art.)
92 Thunderbird Sport 5.0: Sold

91 gt, 5.0 73mm turbo, 5spd, 373s, and much more
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post #7 of 11 (permalink) Old 03-05-2011, 11:07 PM
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Quote:
Originally Posted by Roadrunnner View Post
Wow 3" duals. What kind mods were you running?

---Jeremy
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post #8 of 11 (permalink) Old 03-05-2011, 11:10 PM
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Quote:
Originally Posted by tbirdsc14 View Post
I did a custom 3", true dual exhaust and the routing was interesting but it worked. Around the gas tank and differential we go!
thats insane, my 2.5 was a tight squeeze, I actually had to weld the ones under the tank together

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Originally Posted by Roadrunnner View Post
Wow 3" duals. What kind mods were you running?
insane mods lol I really wish i had the dough to pick it up when it was together

Rob
2004 QSM Pontiac GTO 1 of 889 245,00 and counting
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post #9 of 11 (permalink) Old 03-06-2011, 08:03 AM
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Here is how I did mine. Long tube headers with 3 inch collectors, 3 inch elect cutouts, 3 inch H pipe, 3 inch bullets.




It is a tad loud.

-----1993 Bird 5.0------
393 stroker, Vortech YSi, on E85
Lentech Strip Terminator & 4,000+ RPM stall converter
Detroit Locker with 3.55 gears.
17x9 Cobra Rs with 255/45/17 BFG KWDS
275/50/17 M&H DR on the rear

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post #10 of 11 (permalink) Old 03-06-2011, 08:22 AM
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Quote:
Originally Posted by 392Bird View Post
Here is how I did mine. Long tube headers with 3 inch collectors, 3 inch elect cutouts, 3 inch H pipe, 3 inch bullets.




It is a tad loud.
Do you have a video of it running? Iwant to hear it

Will

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post #11 of 11 (permalink) Old 03-06-2011, 08:43 AM
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I have with the old 2 1/2 inch setup, but not the 3 inch yet. Maybe tomorrow if the weather is decent.

http://members.tccoa.com/392bird/ysi-idle.htm

-----1993 Bird 5.0------
393 stroker, Vortech YSi, on E85
Lentech Strip Terminator & 4,000+ RPM stall converter
Detroit Locker with 3.55 gears.
17x9 Cobra Rs with 255/45/17 BFG KWDS
275/50/17 M&H DR on the rear

Click for Full Project
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