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07-30-2008, 06:48 PM #1
SLP Loudmouth I installed - review
alright there seems to be a lot of love/hate with this catback so i thought i'd say what i think after about a month of use.
first of all, cruising is quiet. and im not saying this because im a teenage thats playing the subs loud (i have stock radio system anyways), even with radio off AND t-tops off it is hard to hear the exhaust cruising at most speeds. but i guess that depends on where you shift too. at 35 mph cruising i shift into 5th gear, at 52ish i shift into 6th. around 48 to 51 its loud, but to low a speed to shift to 6th. also, in 6th around 80 to 87 its loud and annoying but 90+ its fine. again this is a 6 speed. almost all people that seem to not be able to take it have 4 speeds, and im sure it is bad.
when accelerating, you are going to hear the engine. is not too bad and is a nice sound. its definitely not as loud as my neighbor's LT1 with headers and a catback. but in the car it is pretty loud at about 1900 to 2100 but in a way this is good. here really is no need to go that high normally and this has improved my mpg while i still out accelerate traffic from a light.
also as far as popping, well it doesn't much. just when the engine is cold it will sometimes when you put your foot on the clutch. ts not an annoying loud pop sound it more of a small deep da,da,da. i can't really explain it, each pop is quieter and the first wasn't very loud at all. and with a good flowing exhaust this is expected because the car could use a tune as its running too rich (hence why it does it when engine is cold). tuning should remove this if it bothers you so much.
in total, im happy and would recommend it to any person with a 6 speed and can take not cruising around 80-90 on a highway (around here thats the speeds police are looking for anyways). oh, and also if you don't plan on getting headers since videos of this combo sound horrible.Last edited by Speed Psychosis; 07-30-2008 at 06:50 PM.
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07-30-2008, 07:18 PM #2
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Red Tint Jewelcoat- 2008 Trailblazer SS
I loved the LM1....until I got longtubes.
Decent catback, but I can't recommend it. Even if someone says they won't ever put headers on the car....it could happen.
Hell, happened to me. I told myself lid and catback when I first bought it. Now....WAY past that.2008 Trailblazer SS
Yank PTB3600, Kooks 1 7/8" LT's, 4" intake, E-fans, Magnaflow, Sonnax kit, tranny cooler, tune.
Lowered, HID's, tinted.
1999 Pontiac Trans Am WS.6 #1747 SOLD
531.1 RWHP 481.3 FT/Pounds all motor.
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07-30-2008, 09:25 PM #3
what happened to the lm1 when you installed LT's?
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07-30-2008, 09:42 PM #4
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Pewter- 1999 Camaro SS-M6 #1775
1999 Camaro SS/ Pewter/ #1775 - LS1 6-speed - Predator 3 Custom Tune - Pro 5.0 - LS7 Clutch - 3.90's - Koni's - Strano Springs and Sway Bars - SFC's - Full UMI Chassis and Suspension - LS6 Intake PnP TB - ARH LT's and Kitty Ran Away - Magnaflow.
12.6 at 112
http://www.fquick.com/Tyler_LS1
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07-30-2008, 09:43 PM #5
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07-30-2008, 09:45 PM #6
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Pewter- 1999 Camaro SS-M6 #1775
If your lucky Mr. Luos will post up his sound clip of his LT's and LM1
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07-30-2008, 10:47 PM #7
I have LT's with LM1, but also, I'm one of those who like's the way it sounds
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07-31-2008, 08:49 AM #8
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Red Tint Jewelcoat- 2008 Trailblazer SS
Total rasp...
http://home.comcast.net/~mrluos/raspy.wmv
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07-31-2008, 02:26 PM #9
those are the dual tips not the single right I've noticed the singles sound better, a little deeper. Was that the lm1 or lm2, also jw what kind of headers do you have on there.
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07-31-2008, 02:27 PM #10
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07-31-2008, 02:58 PM #11
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07-31-2008, 02:59 PM #12
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Red Tint Jewelcoat- 2008 Trailblazer SS
Hi flow cats.
At the time...SLP longtubes.
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07-31-2008, 04:35 PM #13
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07-31-2008, 04:41 PM #14
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07-31-2008, 05:32 PM #15
Wouldn't it be more raspy with SLP headers?
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07-31-2008, 05:38 PM #16
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07-31-2008, 05:43 PM #17
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07-31-2008, 05:45 PM #18
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Red Tint Jewelcoat- 2008 Trailblazer SS
Louder isn't raspier.
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07-31-2008, 05:50 PM #19
Yea, but the SLP exhaust is raspy, so I thought the SLP headers with it would make it even raspier than other headers. Just a thought
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07-31-2008, 05:52 PM #20
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Red Tint Jewelcoat- 2008 Trailblazer SS
The LM1 isn't what actually creates the rasp.
The y-pipe is. The y-pipe design and how the two come together tend to create the majority of rasp.
Just with the LM series, it REALLY shows through.
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