Stock 454 needs mufflers. Suggestions? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Jim85IROC · 04-03-2007, 03:05 PM

My 87 GMC has a dual exhaust (2.5") on it right now, but it's about ready to fall off. I don't know what mufflers are on it now, but it's got a nice (but fairly quiet) sound. I want something that's a bit aggressive, but not too aggressive because stock motors with no cam don't usually sound very good with real loud mufflers. I'd also like to keep the mufflers somewhat affordable, but not the real cheap ones that rot out in a year or two. Any suggestions? I was thinking about maybe a pair of Hookers or those new Cherry Bomb mufflers.

85_SWB · 04-03-2007, 05:47 PM

dynomax bullets?

hiway · 04-03-2007, 05:55 PM

Dynomax Ultraflows.

Jim85IROC · 04-04-2007, 09:30 AM

Quote:

Originally Posted by hiway

Dynomax Ultraflows.

A couple people now have suggested those. I've always liked dynomax, so maybe I'll give them a try if I don't cheap out and do the $35 welded Summit mufflers. Maybe I'll put the ultraflow on my IROC instead.

knightlife · 04-04-2007, 11:54 AM

be glad you arent in oklahoma....prior to joining the military...I got pulled over for speeding (lol), and got written a citation for loud exhaust. I was like wtf?! the Hypo that pulled me over said that modifying your exhaust is illegal (my old setup finally fell off, bailing wire couldnt hold it anymore). so I had 40 series flows put on (left in, center outs) that dump.

lolz...talk about fun eh?

Malo83 · 04-04-2007, 02:44 PM

Flows

I have the 3" single exhaust,3"cat and 3"in and dual 2.5" out dumped in front of the axle. Love setting off the alarms in the parking lot

John

Jim85IROC · 04-04-2007, 02:59 PM

I have my IROC for when I want to set off alarms. For the truck I want something with a good deep tone, but not something so loud that it makes it sound like a POS. Loud exhausts are great on a cammed motor, but with this stock lo-output 454 a loud exhaust sounds too much like a hole in the muffler. But... I want something with enough tone to be pleasing when I step on it.

82c10 · 04-04-2007, 05:48 PM

Quote:

Originally Posted by knightlife

be glad you arent in oklahoma....prior to joining the military...I got pulled over for speeding (lol), and got written a citation for loud exhaust. I was like wtf?! the Hypo that pulled me over said that modifying your exhaust is illegal (my old setup finally fell off, bailing wire couldnt hold it anymore). so I had 40 series flows put on (left in, center outs) that dump.

lolz...talk about fun eh?

you are like 1 of many that get caught, most of us don't, the cop must of had a bad day, you should have wrote california, almost just modifying your vehicle is illegal

grinch4om · 04-04-2007, 06:09 PM

3 chamber flows man, you just cant beat the sound. I have 2 chamber and a 3" system with hooker headers and I wish I had 3 chambers. 2's are a bit to load but man, they sound great when you whack it!

Survivin Project · 04-04-2007, 09:00 PM

Flow 40s all the way man. Got them on mine with cats (keep me good with the pigs) a really good sound. I went with the stainless to, and they have stood up nice to the canadian weather up here!

Pyro · 04-05-2007, 08:42 PM

I put a duel 3" system on my truck with Hooker Aerochamber mufflers dumping just past the pumpkin and it sounds great. Way better then the standard Flowmaster that everyone and their brother has.

04-03-2007, 03:05 PM	#1
Jim85IROC Registered User Join Date: Dec 2004 Location: Readsboro, VT Posts: 502	Stock 454 needs mufflers. Suggestions? My 87 GMC has a dual exhaust (2.5") on it right now, but it's about ready to fall off. I don't know what mufflers are on it now, but it's got a nice (but fairly quiet) sound. I want something that's a bit aggressive, but not too aggressive because stock motors with no cam don't usually sound very good with real loud mufflers. I'd also like to keep the mufflers somewhat affordable, but not the real cheap ones that rot out in a year or two. Any suggestions? I was thinking about maybe a pair of Hookers or those new Cherry Bomb mufflers. __________________ 1987 GMC Sierra Classic 3500 454 TH400 My Sounddomain Page

04-03-2007, 05:47 PM	#2
85_SWB Registered User Join Date: Oct 2006 Location: Wisconsin Posts: 174	Re: Stock 454 needs mufflers. Suggestions? dynomax bullets? __________________ 1985 C10 SWB- Project

04-03-2007, 05:55 PM	#3
hiway Mad Scientist Join Date: Jul 2005 Location: Enola Arkansas Posts: 380	Re: Stock 454 needs mufflers. Suggestions? Dynomax Ultraflows. __________________ Everythang relates to Beer! 86 1/2ton on tons! sbc/465/208/D60/14/35's 81 Postal....with 468 bbc 97 Merc Marq comuter 07 Suburban 02 Danger Ranger

04-04-2007, 11:54 AM	#5
knightlife Dark Heart Motorsports Join Date: Apr 2007 Location: 29404 DKFX Posts: 683	Re: Stock 454 needs mufflers. Suggestions? be glad you arent in oklahoma....prior to joining the military...I got pulled over for speeding (lol), and got written a citation for loud exhaust. I was like wtf?! the Hypo that pulled me over said that modifying your exhaust is illegal (my old setup finally fell off, bailing wire couldnt hold it anymore). so I had 40 series flows put on (left in, center outs) that dump. lolz...talk about fun eh? __________________ How Deep Can YOU Bleed..? 1985 Chevy Blazer K5- 6.2 N/A, 400 turbo trans CUCV, 12v converted... a new chapter 2005 GMC Sierra Crew Cab 6.0 powwwaa!!! custom jumpseat install w/ captain seats, Hypertech tuner, MSD Blaster Coils, CB and twin antenna's, all electric interior, touch screen in dash. custom center console, with jump seat replacing original console. 1500 HD!

04-04-2007, 02:44 PM	#6
Malo83 Cruzzzn' Vet Join Date: Jan 2005 Location: Porterville,Ca. Posts: 1,918	Re: Stock 454 needs mufflers. Suggestions? Flows I have the 3" single exhaust,3"cat and 3"in and dual 2.5" out dumped in front of the axle. Love setting off the alarms in the parking lot John

04-04-2007, 02:59 PM	#7
Jim85IROC Registered User Join Date: Dec 2004 Location: Readsboro, VT Posts: 502	Re: Stock 454 needs mufflers. Suggestions? I have my IROC for when I want to set off alarms. For the truck I want something with a good deep tone, but not something so loud that it makes it sound like a POS. Loud exhausts are great on a cammed motor, but with this stock lo-output 454 a loud exhaust sounds too much like a hole in the muffler. But... I want something with enough tone to be pleasing when I step on it. __________________ 1987 GMC Sierra Classic 3500 454 TH400 My Sounddomain Page

04-04-2007, 06:09 PM	#9
grinch4om dang its hot Join Date: Nov 2006 Location: frankfort kentucky Posts: 1,349	Re: Stock 454 needs mufflers. Suggestions? 3 chamber flows man, you just cant beat the sound. I have 2 chamber and a 3" system with hooker headers and I wish I had 3 chambers. 2's are a bit to load but man, they sound great when you whack it!

04-04-2007, 09:00 PM	#10
Survivin Project Registered User Join Date: Apr 2006 Location: Toronto, Canada Posts: 20	Re: Stock 454 needs mufflers. Suggestions? Flow 40s all the way man. Got them on mine with cats (keep me good with the pigs) a really good sound. I went with the stainless to, and they have stood up nice to the canadian weather up here!

04-05-2007, 08:42 PM	#11
Pyro Registered User Join Date: Jul 2004 Location: New Boston, MI Posts: 71	Re: Stock 454 needs mufflers. Suggestions? I put a duel 3" system on my truck with Hooker Aerochamber mufflers dumping just past the pumpkin and it sounds great. Way better then the standard Flowmaster that everyone and their brother has.



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