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Exhaust drone, rasp etc......

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Old Feb 3, 2011 | 06:52 PM
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Default Exhaust drone, rasp etc......

Ok, I have true duals with an X pipe and 2 LM1's then under the axle and out, on stock manifolds and cats. I'm about to put on pacesetter ceramic LT's, Magnaflow Hi-Flow heavy metal cats, SLP lid, K&N filter, and possibly a P&P TB. These are ALL the mods I will EVER be doing to this car b/c I don't race it, I just want the sound and a little performance if I ever feel like embarrassin some punk teenager who thinks he has something LOL. Anyway, if I am never going to do a cam or anything else will I still get alot of drone and rasp with this setup or should I be ok?? Thanks

Also any sound clips of someone running this kind of setup would be great, I can't find anything on youtube with true dual and dual LM1. Thanks

Last edited by PheonixLS1; Feb 4, 2011 at 03:46 PM.
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Old Feb 3, 2011 | 08:02 PM
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it will be loud for sure anything with lm1 resonators is,there is a few people that run duals with them , they will buzz in here soon,I know you are against doing a cam but I would for sure do one,maybe just do a 224,I only suggest that because there are a lot of fast cars on the road these days,wouldn't wanna see you get stomped by some punk kid in a 2011 gt lol,if your gonna stay with bolt ons I would look into gears,and a tune. Car will just run better,I will put money on it by the end of summer you will be thinking cam,God bless ya man and good luck with your ride
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Old Feb 3, 2011 | 08:05 PM
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I am getting a dyno the day I finsh my bolt ons. I live 15 miles from tuned by frost. IF IF IF I do a com what all do I have to have for install.
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Old Feb 3, 2011 | 08:23 PM
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It will be loud. Get actual mufflers. I would personally swap the LM1's for borla XR1's

As for cam install, pushrods, springs, retainers, timing chain,oil pump, and while your at it put a under drive pulley on as well
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Old Feb 3, 2011 | 08:37 PM
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Originally Posted by somws6bird
It will be loud. Get actual mufflers. I would personally swap the LM1's for borla XR1's

As for cam install, pushrods, springs, retainers, timing chain,oil pump, and while your at it put a under drive pulley on as well
THAT is why I won't do a cam. I don't have that kinda money. I already spent to much on the **** I got LOL. I also got polyurethane motor mounts, MSD wires, NKG plugs, Bosch 13111 O2's.

Last edited by PheonixLS1; Feb 3, 2011 at 08:43 PM.
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Old Feb 4, 2011 | 10:29 AM
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Really??? No other opinions or help.......
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Old Feb 4, 2011 | 10:33 AM
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LM1 "mufflers" are pretty much straight pipes with a bulge and logo embossed on them. Lol. At least go with LM2 mufflers if not another brand of bullet mufflers. I would like to do true duals over the axle with Borla XR1 mufflers through my center mount exhaust some time in the future.
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Old Feb 4, 2011 | 10:43 AM
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I'm drivin mine through the winter with the pacesetters and ory and lm1, its annoying driving it. Sounds great at idle and revving but under load it sounds like a fat person farting underwater, can't wait til spring to change it. Its not exactly the same as your setup but is similar
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Old Feb 4, 2011 | 10:51 AM
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Lol at first post.. I WON'T EVER do any other mods.... if I ever do a cam...

If I were you I would switch to flow master 1 chambers, imo there isn't a better sounding exhaust than an xpipe with 1 chambers. Plus they flow amazing.

As far as a cam all you need is..
Cam 200-250$
Pushrods-65-110$
Timing chain oil pump- can't remember what these runs used and new, not to expensive though
Springs-125-250$

If you shop around you can have everything needed for a cam swap for under 600-700$. That is including oil anti freeze gaskets etc...
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Old Feb 4, 2011 | 03:48 PM
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This is great so far anyone else....
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Old Feb 4, 2011 | 05:16 PM
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6LITEREATER on here has i believe an F13 cam with Mac mids, TDs with LM1s, cats and a CME. Its loud but no drone or rasp
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Old Feb 4, 2011 | 05:22 PM
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Originally Posted by hitmanws6
6LITEREATER on here has i believe an F13 cam with Mac mids, TDs with LM1s, cats and a CME. Its loud but no drone or rasp
I dont see any sound clips on his page, does he have any???
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Old Feb 4, 2011 | 05:27 PM
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Center mount exhaust
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Old Feb 4, 2011 | 05:45 PM
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https://ls1tech.com/forums/western-m...-car-well.html
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Old Feb 4, 2011 | 06:27 PM
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Cut away of the LM1 "muffler" ... it is basically as close to a straight pipe as you will find.

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Old Feb 4, 2011 | 06:57 PM
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Yeah I know they are hollow I've had them on my car for 3 years I love them on my dual setup. I had lm2s but they were not loud enough for me.
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Old Feb 4, 2011 | 09:49 PM
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HOLY @#$%^&@(%@*&^!@$*@$(&!!!!!!!!!!!!! I can't wait!!! That sounds sick as HELL!!!!!!!!!!!!!!!!!!!!!!!!

" Lunch box , I think I just filled the cup!!"
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Old Feb 4, 2011 | 10:50 PM
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You need actual mufflers. The lm system "resonators" are nothing but pipes. Magnaflow or Borla XR1 will do you best.
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Old Feb 5, 2011 | 07:20 AM
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^^ I don't think so after hearing that sound clip. Sound like sex to me!!!!!
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Old Feb 6, 2011 | 06:23 AM
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if your going with cats then get a single chambered muffler or bullets and NOT resonators LM2 may be? i think it would sound killer.
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