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10-30-2009, 02:52 PM
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#1
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L/T X-pipe
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Registered User
Join Date: Sep 2009
City: Hammond
State: Louisiana
Posts: 14
Thanks: 2
Thanked 1 Time in 1 Post
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What x-pipe works the best with Mac long tubes. I haven't seen one for the 3.8's, only the H-pipes.
__________________
1998 coupe v6
Auto with 3.73 gears (8.8) 
2.25 H-pipe with 2 cats
Stock 2.25 GT catback
AM CAI
Mac UDP
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10-30-2009, 04:21 PM
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#2
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Re: L/T X-pipe
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Registered User
Join Date: Oct 2009
Posts: 32
Thanks: 4
Thanked 4 Times in 4 Posts
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as far as I know I haven heard of an X pipe set up for longtube headers. ANd really with the 3.8 I have heard more recommendations that true dual exhaust( you know not with and X or H pipe) is best for our cars. I have true dual and love the sound and performance. But really if you want that it sounds like you might have to have an exhaust shop build you one off. I don't think you have to worry about losing any torque due to back pressure as long as you don't go bigger than 2.5" pipes.
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3.8L with Forged and Balanced Internals,65mm BBK Throttle Body, JBA Headers, Mild Cam, KN CAI, Port/Polished Heads, T5 with GT Clutch, Steeda Short Throw Shifter, 180rwhp/200rwtq, Foose Df-5 18", 14" Roush Alcon Front Brake Kit
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10-30-2009, 08:11 PM
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#3
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Re: L/T X-pipe
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Homey don't play that
Join Date: Dec 2007
City: Milwaukee
State: Wisconsin
Posts: 1,578
Thanks: 14
Thanked 88 Times in 84 Posts
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If you're doing longtubes, you'll want an h-pipe. The sound will be the best. Some of the best sounding v6's I've heard had longtubes and an h-pipe with either flowmasters or borlas.
Dtbback is right, as long as you stay with 2.25" piping (stock size), you won't lose any backpressure.
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03 Sonic Blue Pony
Pypes dual exhaust, AM CAI, AR Black Bullitts 17x9 fronts and 17x10.5 rears, GT hood, GT Bumper, fog lights, Mach 1 Chin spoiler, slotted/dimpled rotors
Much more to come
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10-30-2009, 08:56 PM
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#4
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Re: L/T X-pipe
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Registered User
Join Date: Sep 2009
City: Hammond
State: Louisiana
Posts: 14
Thanks: 2
Thanked 1 Time in 1 Post
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I was just curious, I heard a 99 v6 on youtube ( punypony ) & he has L/t's with an X & flows. The car sounds good, but I 'm trying to keep it simple so sounds like I'm going with the H-pipe.
__________________
1998 coupe v6
Auto with 3.73 gears (8.8) 
2.25 H-pipe with 2 cats
Stock 2.25 GT catback
AM CAI
Mac UDP
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10-30-2009, 11:51 PM
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#5
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Re: L/T X-pipe
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Stg1Rsh
Join Date: Feb 2009
City: San Jose
State: California
Posts: 50
Thanks: 2
Thanked 0 Times in 0 Posts
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Go w/ the MAC long tubes and h-pipe. i have it on mine, its AMAZING
__________________
Screamin' Demon Coil Pacs, Motoblue pullies & harmonic balancer, Intake, HID w/ Angel Eyes and Steeda Lower Control Arms
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10-30-2009, 11:53 PM
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#6
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Re: L/T X-pipe
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Homey don't play that
Join Date: Dec 2007
City: Milwaukee
State: Wisconsin
Posts: 1,578
Thanks: 14
Thanked 88 Times in 84 Posts
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Yah I've heard his car on youtube too. It does sound pretty good with the x-pipe and longtubes. I think it'd sound similar, probably deeper in the lower rpms with an h-pipe, which is good...the deeper a six sounds the better.
__________________
03 Sonic Blue Pony
Pypes dual exhaust, AM CAI, AR Black Bullitts 17x9 fronts and 17x10.5 rears, GT hood, GT Bumper, fog lights, Mach 1 Chin spoiler, slotted/dimpled rotors
Much more to come
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