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Thread: True duals installed today...
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03-06-2007, 04:27 PM #1
- Join Date
- Aug 2006
- Location
- Madrid, Iowa
- Age
- 49
- Posts
- 304
red- 02 trans am ws6
True duals installed today...
Finally got my exhaust done today, 400 plus tax. qtp headers (already installed) down to 2 1/2 out the back over the axles into two magnaflow stainless mufflers and exiting in the stock location with the corsa dual tips. true duals the drivers side crosses over to the passenger side towards the rear dif and they are side by side over the axle. not to bad all with aluminized pipe. as soon as I get pics I'll post. It's at the dealer ship now still throwing a code and running horrible. butt kicker is I don't even know how it sounds... I asked about a h pipe and he said it would only be effective if it was the same distance from the headers on both sides, but hell all in all 400 for true duals I'll take it
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03-06-2007, 04:28 PM #2
- Join Date
- Jul 2006
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- Vancouver,B.C.,Canada.W.Coast
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- 513
Navy Blue Metallic- '99 T/A WS6 M6
sounds like a good deal...try and get a vid...
99 WS6 M6 NBM !Cags,!Cats,Vinci/Crane,Hurst,Detroit TruTrac,3:73,31 Splne,Edel.Race LT's,ORY,QTEC,Flow,ARP,Percy,MSD,SLP,AC/DELCO,Bosch,GMPP,Cntrfrce DF,Htchkiss,Susp.Tech,Lakewood,285's,Bilstein,Pro-kit,SLP,RK Sprt,A/Meter,Red Optima,Magnaflow S/S Tips,Hd Pins,Tint,Fire.Ex,[*4 Hot Rod Power Tours*]
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03-06-2007, 06:00 PM #3
Is it a mandrel bent system or mandrel bends pieced together?
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03-06-2007, 06:13 PM #4
- Join Date
- Aug 2005
- Location
- MIAMI, FLORIDA
- Age
- 54
- Posts
- 92
RED- 2001 PONTIAC TA RAM AIR
Yes please, definitely want to see pics. Sounds like a good price.
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03-07-2007, 04:44 PM #5
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03-07-2007, 05:14 PM #6
- Join Date
- Aug 2006
- Location
- Madrid, Iowa
- Age
- 49
- Posts
- 304
red- 02 trans am ws6
no its not mandrel bent, I asked the guy about it and he showed me a diagram where the flow of the exhaust takes the same pattern on reg. bent vs mandrel bent. He also reassured me that there isn't much if any HP gains from mandrel tubing (he said he doesn't know of any proven dyno results). but hey I'm not a muffler specailist myself so... Anywho got my car back from the dealership today. I was having the p300 code. I changed my plugs, wires, crank sensor, exhaust, fuel filter... bla bla turns out it was a bad wire to my coils and 8,6,4 weren't working. so all is good now! Car sounds great! Supercharger and a 50 shot of NOS goes on next! Hopefully I can start that next week!!!
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03-07-2007, 05:47 PM #7
Sounds like he just didn't feel like using mandrel bends, and wanted to convince you that regular (or "kink") bends are just as good. The "kink" bend exhaust systems that we get in at work are horrible, they are kinked at 90 degree angles, so half the pipe in each bend is unuseable. They also appear to be cut with a dull hacksaw, so they have rough, sharp edges with metal shavings hanging off. So despite what the guy may have told you, mandrel is best, but depending on how much they are bent, it may not be much of a real airflow loss. Still, you can't beat mandrel
Post up some pics and a sound clip if you can, true duals > y-pipe
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03-08-2007, 06:05 AM #8
From what I understand (could be completely wrong) and H pipe or X pipe is to even the flow between the two sides. If one has more flow/compression in the pipe, then it will be regulated by the H or X pipe across to the other one and they will come out at even pressure. So, I would think it would be fine if its at different points on the exhaust on each side. Hey, its just me though.
I like my true duals though, 2 cutouts on the ypipe.
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03-09-2007, 09:20 AM #9
- Join Date
- Nov 2005
- Location
- MI
- Posts
- 69
Red- 1999 Z28
[QUOTE=I like my true duals though, 2 cutouts on the ypipe.[/QUOTE]
Duals with a y-pipe? Am I missing something....
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03-09-2007, 11:28 AM #10
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03-09-2007, 11:43 AM #11
A muffler shop said theyd "bend" me up a true dual exhaust, but cuz it wasnt mandrelly bent, I declined.
My exhaust right now is better than stock, so going back in and doing something else should be an improvement. I mean, I might just be treading water by getting a bent system.
Not sure though...
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03-09-2007, 03:29 PM #12
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03-09-2007, 07:40 PM #13
- Join Date
- Apr 2006
- Location
- Indianapolis, IN
- Posts
- 4,886
All Black- 83, 87, 02 All WS6 T/As
I love my true duals.. between the Pacesetter LTs and the TSP Rumbler.. I gained 26hp and 19lbs tq. Sounds mean as hell too!
-Geno
1983 Black WS6 "WindCharger"
1987 Black WS6 "WS87"
2002 Black WS6 "Silver Streak"
Sold the other four f-bodies
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03-10-2007, 12:18 PM #14
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03-10-2007, 03:38 PM #15
- Join Date
- Apr 2006
- Location
- Indianapolis, IN
- Posts
- 4,886
All Black- 83, 87, 02 All WS6 T/As
Stock.... I went from 305/306 stock to 342/355 with a lid, headers, duals, and tune.
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03-11-2007, 09:25 AM #16
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03-12-2007, 06:36 AM #17
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03-12-2007, 09:04 AM #18
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03-12-2007, 09:45 AM #19
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