Generation III External Engine LS1 | LS6 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:

SLP Powerflo??

Thread Tools
 
Search this Thread
 
Old May 9, 2010 | 06:01 PM
  #1  
BlakeLan2010's Avatar
Thread Starter
Teching In
 
Joined: Mar 2010
Posts: 31
Likes: 0
From: TX
Default SLP Powerflo??

Current Exhaust set up:
Hooker Comp Headers
ORY
SLP Loudmouth 2

I like how it sounds, but it's just so unpredictable. It's like having three different mufflers and switches between them whenever it pleases.
It's somewhat refined at idle(enough to keep the neighbors from complaining), it's extremely raspy between 2 and 3k and vibrates the whole cab, and screams at WOT.

So I was wondering if the $300 Powerflo conversion was worth it. SLP claims something like 6-9 dB quieter but I'm not worried about that, I just want a smooth, clean exhaust note without spending another 700-1000+ on a new GMMG, Magnaflow, or B+B. Would this help?
Reply
Old May 9, 2010 | 06:04 PM
  #2  
SSponyh8R's Avatar
Registered User
 
Joined: Apr 2010
Posts: 20
Likes: 0
Default

i love the way my car sounds with my stock slp muffler but wen im racing my cutout gets opened
Reply
Old May 9, 2010 | 06:24 PM
  #3  
kicksZ28's Avatar
TECH Enthusiast
iTrader: (33)
 
Joined: Dec 2006
Posts: 686
Likes: 1
From: Georgia
Default

I am thinking about using the powerflo's too when I get headers. I have the LM2 now. Would like to hear them with the same set up.
Reply
Old May 9, 2010 | 07:45 PM
  #4  
HoLLo's Avatar
TECH Junkie
iTrader: (17)
 
Joined: Aug 2006
Posts: 3,161
Likes: 0
From: Rapid City, SD
Default

I bought my car when the LM2 on it, and I planned to add the Powerflo, it just sounds so refined and amazing. I decided against it. If I had the LM1, i would definitely add the Powerflo.
Reply
Old May 10, 2010 | 01:57 PM
  #5  
BTL FED's Avatar
TECH Fanatic
iTrader: (9)
 
Joined: Jan 2002
Posts: 1,245
Likes: 0
From: DFW
Default

I have the Powerflow, Longtubes, and cats, I love the way it sounds. And IMO it looks good on a T/A but might look a little strange on a Z28 with the mufflers so close to the tips.
Reply
Old May 10, 2010 | 03:16 PM
  #6  
kicksZ28's Avatar
TECH Enthusiast
iTrader: (33)
 
Joined: Dec 2006
Posts: 686
Likes: 1
From: Georgia
Default

Since I have the LM2 setup would a catted Y be better for quieting down the exhaust? I like the muscle car sound but dont want it too loud. Getting a catted Y from Texas Speed would be cheaper. Thanks
Reply
Old May 10, 2010 | 04:45 PM
  #7  
BlakeLan2010's Avatar
Thread Starter
Teching In
 
Joined: Mar 2010
Posts: 31
Likes: 0
From: TX
Default

catted is always going to make it quieter, I'm not sure how big the difference is though. and I don't believe you found a catted y for cheaper than an ORY

I have a video of both my stock manifold, cats, and LM2...as well as headers, ory, and lm2
Reply
Old May 10, 2010 | 05:08 PM
  #8  
02 wife's Avatar
Banned
 
Joined: Dec 2004
Posts: 515
Likes: 0
From: DETROIT,MI
Default

A catted y pipe will quiet it down.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-1

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-2

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-3

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-4

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-5

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-6

10 Camaros You Should Never Buy

 
story-7

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
story-8

Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0

 Brett Foote
story-9

10 Reasons the LS7 Is GM's Most Extreme Naturally Aspirated V8 Engine Ever

 Verdad Gallardo
Old May 10, 2010 | 07:08 PM
  #9  
kicksZ28's Avatar
TECH Enthusiast
iTrader: (33)
 
Joined: Dec 2006
Posts: 686
Likes: 1
From: Georgia
Default

i meant the catted y will be cheaper than me buying a whole new catback since i have the lm2 already.
Reply
Old May 10, 2010 | 07:31 PM
  #10  
20ws601's Avatar
On The Tree
 
Joined: Nov 2007
Posts: 132
Likes: 1
From: Murderland
Default

I have had the powerflo for about 5 months..with lts ory and cam. Don't expect it to sound like the demo on Slp's site.. It does rasp between 2 and 2800ish then cleans up. And is the only negative I can think of. Fit and finish is top notch. The idle is a deep rumble. And everywhere out side 2-2800 it sounds very tuned. Its a different sound that's for sure..overall I'm happy...yes the rasp bugs me. However the idle and outside the 2k-2800 rasp zone makes up for it. I'm sure a magnaflow bullet or something would help I just don't feel much like messing with it.
Reply
Old May 10, 2010 | 09:03 PM
  #11  
99canadahawk's Avatar
On The Tree
 
Joined: Jun 2008
Posts: 145
Likes: 0
From: Barrie , Ontairo , Canada
Default

Hello , sorry I don`t mean to steal a thread but I was originaly looking at the corsa 3.5 catback & then saw the SLP powerflo with the 4 inch tips does anyone have pic`s of a T/A with this exhaust & also besides the huge price difference`s of the two how do they compare in sound ??
Thanks
Reply
Old May 11, 2010 | 06:29 AM
  #12  
The Alchemist's Avatar
UNDER PRESSURE MOD
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (19)
 
Joined: Nov 2001
Posts: 10,813
Likes: 15
From: Doylestown PA
Default

I have the powerflo with long tubes and ory on my car and love it. It's very deep at idle, and you learn how to drive through the rasp between 2200-2600 without getting it depending on throttle position. I've had probably 7-10 different exhaust setups on my car over the past 10 years, and this is my favorite by far.
Reply
Old May 11, 2010 | 06:42 PM
  #13  
pir7tr's Avatar
TECH Apprentice
iTrader: (23)
 
Joined: Jan 2004
Posts: 377
Likes: 2
From: McKinney, TX
Default

I have the SLP powerflo mufflers on my CME TD set up and love them! Great low tone at idle and have a strong WOT sound.
Reply
Old May 11, 2010 | 08:01 PM
  #14  
kicksZ28's Avatar
TECH Enthusiast
iTrader: (33)
 
Joined: Dec 2006
Posts: 686
Likes: 1
From: Georgia
Default

Might just go with the SLP Power Flo set up with my LM2 and headers. Anyone have any pics of the Power Flos on a F Body? Curious as to how they look. Thanks
Reply
Old May 11, 2010 | 08:43 PM
  #15  
pir7tr's Avatar
TECH Apprentice
iTrader: (23)
 
Joined: Jan 2004
Posts: 377
Likes: 2
From: McKinney, TX
Default

These crap iphone pics are the only pics I have right now.





Reply
Old May 11, 2010 | 09:14 PM
  #16  
kicksZ28's Avatar
TECH Enthusiast
iTrader: (33)
 
Joined: Dec 2006
Posts: 686
Likes: 1
From: Georgia
Default

Those tuck up nicely.
Reply
Old May 12, 2010 | 06:46 PM
  #17  
Detoxx03's Avatar
10 Second Club
iTrader: (14)
 
Joined: Jan 2007
Posts: 7,336
Likes: 74
From: Woodward Avenue
Default

Yes it is totally worth it. If anyone has a lm exhaust whether it be lm1 or lm2 the Powerflo conversion is a must to maintain your sanity.
Reply
Old May 12, 2010 | 07:09 PM
  #18  
HoLLo's Avatar
TECH Junkie
iTrader: (17)
 
Joined: Aug 2006
Posts: 3,161
Likes: 0
From: Rapid City, SD
Default

I think my sanity perfectly exists with my LM2. My friends sanity moved the hell out with his LM1
Reply
Old May 12, 2010 | 09:40 PM
  #19  
BlakeLan2010's Avatar
Thread Starter
Teching In
 
Joined: Mar 2010
Posts: 31
Likes: 0
From: TX
Default

I don't think I'm losing my sanity yet, It just bothers me a bit
Reply
Old May 12, 2010 | 09:52 PM
  #20  
Detoxx03's Avatar
10 Second Club
iTrader: (14)
 
Joined: Jan 2007
Posts: 7,336
Likes: 74
From: Woodward Avenue
Default

Well obviously you won't really lose your sanity but the lm's are very annoying after awhile.
Reply



All times are GMT -5. The time now is 10:38 AM.

story-0
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-1
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-2
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-3
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-4
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-5
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-6
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-7
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE
story-8
Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0

The world was a better place when it was still around.

By Brett Foote | 2026-01-23 09:20:37


VIEW MORE
story-9
10 Reasons the LS7 Is GM's Most Extreme Naturally Aspirated V8 Engine Ever

Slideshow: The 7.0-liter LS7 was designed for absolute cutting-edge performance.

By Verdad Gallardo | 2026-01-07 18:36:00


VIEW MORE