The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 11-29-2011, 04:03 PM   #1
chvyboy
Registered User
 
chvyboy's Avatar
 
Join Date: Nov 2011
Location: san mateo, ca
Posts: 118
Slp?

Its kinda sad but i just heard about SLP loudmouth mufflers today. So i looked online to hear them and it seems like there on a lot of Camaros. Now im sure i want to set up a 2.5 in h-pipe but idk if i should stay with my flowmaster 40 series. Im also running long tube headers, if anyone has any suggestions to make my truck sound mean, let me know. Would slp loudmouths be a bad idea?
thanks
__________________
My project: Spare change


http://67-72chevytrucks.com/vboard/s...=1#post5031992
chvyboy is offline   Reply With Quote
Old 11-29-2011, 04:31 PM   #2
special-K
Special Order

 
special-K's Avatar
 
Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,852
Re: Slp?

Got a clip of how they sound? I'm familiar with SLP but their Camaro SSs and Pontiac Firehawks.
__________________
"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed"

GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project)
GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling)
Tim

"Don't call me a redneck. I'm a rough cut country gentleman"

R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~
special-K is offline   Reply With Quote
Old 11-29-2011, 04:37 PM   #3
no moa
Registered User
 
no moa's Avatar
 
Join Date: Nov 2009
Location: maine
Posts: 2,315
Re: Slp?

I had a set on a trans am, loud as he!!. Also annoying as he!! in my opinion. I swapped it out for a dynomax quieter set.
But this was years ago, i can't be positive about now though.
__________________
1972 C10 Deluxe.Shortbed. 402/400. A/C, white interior, needs complete restore. Project Red, white and blue. Used to be a Longbed apperently.

http://67-72chevytrucks.com/vboard/s...d.php?t=451950

1971 c10 step 250 3 OTT

1969 c30 TOW-MATER. 307 4 speed, holmes 440 body.

http://67-72chevytrucks.com/vboard/s...d.php?t=451082

2006 CTS-V LS2 6spd.
no moa is offline   Reply With Quote
Old 11-29-2011, 04:37 PM   #4
BLOWN72
Registered User
 
Join Date: Oct 2011
Location: Normal, IL
Posts: 82
Re: Slp?

I love SLP and have thought about that when I redo my exhaust myself. Camaro's are SLP's big thing since they came out with the SS. They know there stuff and make quality parts. I know 2 guys that are running LM, one is a 01 Z28 3" exhaust, sounds mean as hell. Also is a guy I work with has a 69 Mach 1, 351, built, big game, totally redone beautiful car. His is full length, 3" SLP LM, sounds great. I love Flowmaster, have had them on everything I've owned. So you cannot go wrong. SLP is going to be louder and probably meaner. While Flowmaster is going to be a little deeper but also mean sounding. I say go for it.
__________________
1972 C10 SHORT BED, BLACK ON BLACK, ZZ3 CRATE MOTOR WITH B&M 250 SUPERCHARGER, HEADERS, 350TURBO TRANS, BOOST RETARD, POSI, 373 GEARS
1966 MUSTANG COUPLE, 289 HIPO MOTOR, CAM, 650 HOLLEY CARB, FULL LENGTH HEADERS, 2.5" FLOWMASTER EXHAUST, HURST SHIFTER, 373 GEARS POSI
2006 MONTE CARLO, FLOWMASTER MUFFLERS, K&N INTAKE, EXTERIOR MODS
BLOWN72 is offline   Reply With Quote
Old 11-29-2011, 04:40 PM   #5
GCncsuHD
Charlie Daniels w/ a Tq Wrench
 
GCncsuHD's Avatar
 
Join Date: May 2009
Location: Statesville, NC
Posts: 1,570
Re: Slp?

SLP Loudmouths can hardly be called mufflers....

IMO they sound ok, and pretty mean on a stock F-body that still has catalytic converters, but on a car with LT headers (or just no cats) they sound horrible, lots of popping and rasp, which would be the same result you will likely get with them.
__________________
ΜΟΛΩΝ ΛΑΒΕ
67 C10 Shortbed "Great Grandpa's Truck" I6 3 on the Tree 71k original miles 5.3 swap in the works
69 K5 Blazer-Family Beach Cruiser Project
78 K30 Dually Semi-Retired Fire Truck 350/SM465 35"s
SOLD01 2500HD ECSB 6.0 4x4 5.13's 8" lift 38"s
GCncsuHD is offline   Reply With Quote
Old 11-29-2011, 09:05 PM   #6
HavinSomeFun
Still Just Havin Some Fun!
 
HavinSomeFun's Avatar
 
Join Date: Jun 2007
Location: Piedmont, Oklahoma
Posts: 1,145
Re: Slp?

I have owned 3 of the SLP Firehawks and loved all 3 of them. However, I did install a loudmouth setup on one of them with headers and it lasted about a week before I yanked it off.

__________________
a green one with some stuff done to it....
HavinSomeFun is offline   Reply With Quote
Old 11-29-2011, 11:03 PM   #7
BLOWN72
Registered User
 
Join Date: Oct 2011
Location: Normal, IL
Posts: 82
Re: Slp?

Quote:
Originally Posted by HavinSomeFun View Post
I have owned 3 of the SLP Firehawks and loved all 3 of them. However, I did install a loudmouth setup on one of them with headers and it lasted about a week before I yanked it off.

Got to love those F-Bodies, had a 96 myself with Flowmaster
__________________
1972 C10 SHORT BED, BLACK ON BLACK, ZZ3 CRATE MOTOR WITH B&M 250 SUPERCHARGER, HEADERS, 350TURBO TRANS, BOOST RETARD, POSI, 373 GEARS
1966 MUSTANG COUPLE, 289 HIPO MOTOR, CAM, 650 HOLLEY CARB, FULL LENGTH HEADERS, 2.5" FLOWMASTER EXHAUST, HURST SHIFTER, 373 GEARS POSI
2006 MONTE CARLO, FLOWMASTER MUFFLERS, K&N INTAKE, EXTERIOR MODS
BLOWN72 is offline   Reply With Quote
Old 11-29-2011, 11:52 PM   #8
LEX
Registered User
 
LEX's Avatar
 
Join Date: Oct 2011
Location: Houston, Texas
Posts: 884
Re: Slp?

I remember SLP loudmouths to be pretty raspy.
Posted via Mobile Device
LEX is offline   Reply With Quote
Old 11-30-2011, 12:16 AM   #9
Meatman
Registered User
 
Meatman's Avatar
 
Join Date: Sep 2004
Location: Topeka, Ks
Posts: 604
Re: Slp?

Its loud which is cool, but annoying raspy nasty loud. Been there done that. I have Flowmaster single chamber 10 series on car now. Its loud but sounds amazing, especially at WOT.
__________________
Daily-94 K2500 350 5spd extended cab longbox
Project Red Velvet-68 C20 396-th400-AC-PS-PB-all original except for the 8 track and the gun rack.
Build thread>>>>http://67-72chevytrucks.com/vboard/s...d.php?t=495881
My 01 TA and 88 Formula hide in the garage. :-)
Meatman is offline   Reply With Quote
Old 11-30-2011, 08:34 AM   #10
special-K
Special Order

 
special-K's Avatar
 
Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,852
Re: Slp?

For loud,my buddy put electric cut-outs on his Firehawk to scare the cocky Mustang boys next to him at a light...then leave them in his dust.
__________________
"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed"

GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project)
GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling)
Tim

"Don't call me a redneck. I'm a rough cut country gentleman"

R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~
special-K is offline   Reply With Quote
Old 12-02-2011, 02:35 PM   #11
chvyboy
Registered User
 
chvyboy's Avatar
 
Join Date: Nov 2011
Location: san mateo, ca
Posts: 118
Re: Slp?

Thanks for the input guys, I'm thinking that slp lm would be a bad idea, I thin electric cut outs after the h pipe would be real cool but i don't know if that's a good idea, any suggestions on that?
Posted via Mobile Device
__________________
My project: Spare change


http://67-72chevytrucks.com/vboard/s...=1#post5031992
chvyboy is offline   Reply With Quote
Old 12-02-2011, 03:23 PM   #12
BLOWN72
Registered User
 
Join Date: Oct 2011
Location: Normal, IL
Posts: 82
Re: Slp?

True Dual Flowmaster 44's. Deep, louder and sounds good.
__________________
1972 C10 SHORT BED, BLACK ON BLACK, ZZ3 CRATE MOTOR WITH B&M 250 SUPERCHARGER, HEADERS, 350TURBO TRANS, BOOST RETARD, POSI, 373 GEARS
1966 MUSTANG COUPLE, 289 HIPO MOTOR, CAM, 650 HOLLEY CARB, FULL LENGTH HEADERS, 2.5" FLOWMASTER EXHAUST, HURST SHIFTER, 373 GEARS POSI
2006 MONTE CARLO, FLOWMASTER MUFFLERS, K&N INTAKE, EXTERIOR MODS
BLOWN72 is offline   Reply With Quote
Old 12-02-2011, 04:59 PM   #13
chvyboy
Registered User
 
chvyboy's Avatar
 
Join Date: Nov 2011
Location: san mateo, ca
Posts: 118
Re: Slp?

Just stopped by a family friend's exhaust shop he suggested a 2.5 inch true dual with my 40 series. I'm currently running 2 inch true dials and it's not loud enought
Posted via Mobile Device
__________________
My project: Spare change


http://67-72chevytrucks.com/vboard/s...=1#post5031992
chvyboy is offline   Reply With Quote
Old 12-02-2011, 05:06 PM   #14
BLOWN72
Registered User
 
Join Date: Oct 2011
Location: Normal, IL
Posts: 82
Re: Slp?

Good choice, I have had them on 3 different cars/truck and know plunty other people with them. I am going with 44's when I redo this exhaust. Really not that much different I believe 44's are suppose to be a little deeper sounding but close to same loudness. I had headers, true duals 2.5" 40's on my 97 Sierra with a 350 vortec with a small cam and hiflow cats and I loved the way it sounded. It had a good deep idle that wasn't real loud but when you jumped on it, it screamed and sounded mean. Are you going to dump the exhaust or have them come all the way out the back?
__________________
1972 C10 SHORT BED, BLACK ON BLACK, ZZ3 CRATE MOTOR WITH B&M 250 SUPERCHARGER, HEADERS, 350TURBO TRANS, BOOST RETARD, POSI, 373 GEARS
1966 MUSTANG COUPLE, 289 HIPO MOTOR, CAM, 650 HOLLEY CARB, FULL LENGTH HEADERS, 2.5" FLOWMASTER EXHAUST, HURST SHIFTER, 373 GEARS POSI
2006 MONTE CARLO, FLOWMASTER MUFFLERS, K&N INTAKE, EXTERIOR MODS
BLOWN72 is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 11:21 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com