Which is LOUDER? - SLP LM II v. GMPP "Offroad" - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

SuperSport2010 · 08-23-2009, 11:29 AM

Curious as to those who may have been able to compare these in person. I have SLP LM II and it sounds terrific - no drone but nice & deep wherein you hear V8 rumble in the cabin any time you accelerate. I believe SLP LM II is the winner, but wondering how GMPP "Offroad" sounds - and also how much of the GMPP you actually hear in the cabin while driving. Thanks!

JoshJ81 · 08-23-2009, 11:45 AM

I think, from videos, SLP II

However, I'm bias to MBRP now. They have an Axle back system as well and louder than both and sounds way better IMO. you can get them from www.supertruckusa.com

SGOS252382 · 08-23-2009, 01:38 PM

Quote:

Originally Posted by SuperSport2010

Curious as to those who may have been able to compare these in person. I have SLP LM II and it sounds terrific - no drone but nice & deep wherein you hear V8 rumble in the cabin any time you accelerate. I believe SLP LM II is the winner, but wondering how GMPP "Offroad" sounds - and also how much of the GMPP you actually hear in the cabin while driving. Thanks!

You can hear the GMPP off road axle back big time inside the cabin when you accelerate. It also has a very deep low rumble to it. It's actually fairly aggressive. The videos really don't capture the sound at all.
I'm actually thinking with headers and high flow cats, the GMPP off road setup might be too loud for me. Because right now it sounds just about right
(Not too loud but noticeable).

I'm not 100% sure, but I think the GM "off road" mufflers are the same as the Borla S Type mufflers. They look and sound the same, and Borla makes the exhaust for GM.

vdevine · 08-23-2009, 06:06 PM

Go with LM I if you really like loud.

08-23-2009, 11:29 AM	#1
SuperSport2010 Drives: BMW Join Date: May 2009 Location: Texas Posts: 35	Which is LOUDER? - SLP LM II v. GMPP "Offroad" Curious as to those who may have been able to compare these in person. I have SLP LM II and it sounds terrific - no drone but nice & deep wherein you hear V8 rumble in the cabin any time you accelerate. I believe SLP LM II is the winner, but wondering how GMPP "Offroad" sounds - and also how much of the GMPP you actually hear in the cabin while driving. Thanks!

08-23-2009, 11:45 AM	#2
JoshJ81 Drives: '10 Camaro 2SS/RS Black Join Date: Jul 2009 Location: Wichita Falls, TX Posts: 257	I think, from videos, SLP II However, I'm bias to MBRP now. They have an Axle back system as well and louder than both and sounds way better IMO. you can get them from www.supertruckusa.com __________________ 2SS/RS A6 L99 - Black w/White Stripes K&N Air Intake System Muffler Delete

08-23-2009, 06:06 PM	#4
vdevine Drives: 2010 Black SS Join Date: Jun 2009 Location: Virginia Posts: 605 View My Garage	Go with LM I if you really like loud. __________________ Vince SS2 Black with CGM Stripes 3800 Born: 25 May VIN#12136 6000 Mine 26 June 2009 SLP Loudmouth II, NOWEEDS, BMR 1.4/1.0 Lowering Springs, Cold Air Inductions Intake, Tune, Eagle Eyes w HID, SLP "SS" Grille Insert, Pistol Grip Shifter, Hawk PC Pads, RGB Scanner, Tint, Headlight Armor, Clear Bra, 22's.

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