Do I need an X???

lscmkviii

lscmkviii

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Got the kooks headers all hooked up to the rest of the system. We took out the third cat and mated the new high flow cats directly to a 2 in 2 out magnaflow. It sounds good but to raspy?? (hard to explaine) not as deep as i would like. Its all 2.5 inch manderal bent from headers back. I think I sounded better before the headers. Was the 3rd cat acting like an X pipe? I will post a sound bite for you guys to hear soon. Thanks, Tom
 
yes.. been there done that.
TRUE duals sound and perform like crap
 
I'm crushed. I thought that a system w/ true duals, x pipes and 2 1/2 " pipes was the performance and sound way to go ? The LMS system was what I had in mind. It both looks and sounds awesome. Is it possibly just personal taste ie sound etc. is what it comes down to ? Anyone else have opinions on single vs. dual ?
 
yeah I thought my muffler would act as an X pipe. I dont think it is. that is the problem. I dont think an X pipe will hurt it, do you?
 
lscmkviii said:
We took out the third cat and mated the new high flow cats directly to a 2 in 2 out magnaflow.
Click to expand...

Is the 2 in/out a muffler?

I don't have headers, but a true dual w/magnaflow 2 in/out 3rd cat and magnaflow 40 mufflers. Not as throaty at idle as I want, but sounds good at WOT. I think I'll try these next - http://supercoupeperformance.com/partBrowser.aspx?partId=335 I heard a couple clip's of those and like it. No mufflers sounds like every 4wd pick-up on the road.

It's not like the old days when it was Hookers or Headmans w/Thrush Turbo Thrusts. :D
 
kustomizingkid said:
X pipe is a must.....
Click to expand...

+1

when I did my 95's exhaust the first time I did a 2.5 inch true dual with no crossover.
The car didn't pick up anything at the track, it was still MIRED in the low 15's.

I put an H pipe in as a test and instantly picked up .3 in the 1/4 and ran my first 14.99 pass.

Then I rebuilt the entire system using an Xpipe and the car ran into the 14.60's or .70's..

+1 for the Xpipe or ANY crossover configuration (Hpipe)
 
I have the same setup but stock cats and no headers. Im thinking about removing my muffler and just putting an x in place of it to louden it up a bit.
 
lscmkviii said:
How? Too loud? Too raspy? Or just not your taste? what set up did they have after the headers? I am trying to create the ultimate set-up through trial and error.
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it sounds like you're hearing every cylinder fire, kind of machinegunnish at idle ,I heard driller's at Carlisle last year. It's not bad, I'd just rather keep the sound I have. I would recommend a fairly quiet set of mufflers though.
 
cadillackman said:
yes, it sounds about $60 better:) sorry, the marks I've heard with headers all sounded a little funky.
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Sonds better, less drone. Excellent exotic note.

Marks with headers do for some reason sound flat out odd. Almost beyond raspy. I remember hearing Joe's vid laying rubber in the rain and it sounded strange.
Someone has that vid on here I have seen it before.
 
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i have the third cat removed and in its place the 2 - 2 out magnaflow SS... I love the sound - I wish it was a bit louder though... But before that it was just true duals no third cat, sounded like a harley - and it didn't feel any faster. Once we put in the muffler, it quieted it up crazy. And I noticed some more torque.
 
cadillackman said:
That's how I roll. 2.5,x-pipe, gutted cats. YouTube - Mark VIII Practice for Carlisle 2008
Click to expand...

thats how I would like my mark to sound. Should have just went with an xpipe instead of the magnaflow 2-2. It quieted the exhaust so much. But I was use to wayyy louder exhaust than that video, so it was kinda dissapoining when it go so quiet. I kind of like being able to be stealthy if need be though...
 
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