dynomax vs flowmaster? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Adam12 · 11-04-2002, 04:02 PM

Im getting the exaust done soon on my truck and am calling around town for pricing. Dynomax is almost half the price of flowmaster but what do you guys think about it's proformance? I want somthing that sounds good, and I have dynomax headers so I kinda like to stick with the same brand anyway.

crazy longhorn · 11-04-2002, 04:10 PM

I have run dynomax superturbos on many vehicles, & like them......nice tone, but not too loud unless the throttle is opened up. You might consider the hemi superturbos for your BB.

**Yukon Jack** · 11-04-2002, 04:11 PM

I've got a dynomax cat back system on my 95 Yukon and it sounds very good. The engine is stock and I have people asking me what I've done to it. Wide open it sounds great.

I just purchased Dynomax UltraFlo's for the 454 I'm swapping in. Dynomax had a $20 off rebate going when I purchased them a month ago. Not sure if it is still in effect but you ought to check into that.

Presently I have Dynomax Turbos on my tired 307 - way to quiet but I think that is just the engine and 2" exhaust. Can't wait to hear the UltraFlo's.

Ackattack · 11-04-2002, 05:07 PM

I have flowmasters on my truck, I do like the sound, but I've heard that they don't flow the best (aka flowmiser or blowmaster). If I were to do it over (which maybe fairly soon) I'll probably get dynomax or hooker mufflers.

70c10 · 11-04-2002, 05:40 PM

My neighbor just installed Dynomax Superturbos in series behind his new headers on his big block F@#D and you can't hear them at all. He thought because he used 3" pipe it might be too loud so he used 2 muffs end to end. What a waste in my opinion. I love the sound of my 40 series Flows and have had no probs at all.

Slammed67 · 11-04-2002, 05:45 PM

I've got Dynomax Super Turbos and they sound awesome. Not too loud, but a nice deep tone.

JoetheMobster · 11-04-2002, 06:05 PM

I have a big rust hole in my muffler, so it's LOUD!!

COST? 0.00! Well, is cost is counted in time, it took a few years to get it to perfection....LMAO!!

mikep · 11-04-2002, 10:30 PM

Ive had a few cars with flowmasters and found them really annoying and tinny sounding. I'm running dynomax superturbos with 2 1/4" pipes now exiting out the side after the rear axle with what is probably the best exhaust job I have ever seen in one of our trucks. Its very quiet even with the headers and mild cam and runs great.

nate68 · 11-05-2002, 02:06 AM

flowmasters aren't cheap. my terminators weren't too bad in price. dynomax has been having rebates lately

11-04-2002, 04:02 PM	#1
Adam12 I hate trannys Join Date: Dec 2001 Location: Bakersfield,CA Posts: 160	dynomax vs flowmaster? Im getting the exaust done soon on my truck and am calling around town for pricing. Dynomax is almost half the price of flowmaster but what do you guys think about it's proformance? I want somthing that sounds good, and I have dynomax headers so I kinda like to stick with the same brand anyway. __________________ 70 SWB 481 ci, TH-400, Edlebrok Victor Jr. intake, Holley street avenger 770, Dynomax ceramic coated headers. Dual flowmasters. and only 3516134 more little things to do.

11-04-2002, 04:11 PM	#3
Yukon Jack Post Whore Join Date: Feb 2000 Location: Rose Hill, KS, USA Posts: 12,683	I've got a dynomax cat back system on my 95 Yukon and it sounds very good. The engine is stock and I have people asking me what I've done to it. Wide open it sounds great. I just purchased Dynomax UltraFlo's for the 454 I'm swapping in. Dynomax had a $20 off rebate going when I purchased them a month ago. Not sure if it is still in effect but you ought to check into that. Presently I have Dynomax Turbos on my tired 307 - way to quiet but I think that is just the engine and 2" exhaust. Can't wait to hear the UltraFlo's. __________________ 1970 Blazer with a 400 sbc and 4" lift 1980 Pontiac Trans Am, 455 Oldsmobile 2012 Kawasaki Concours 14

11-04-2002, 05:07 PM	#4
Ackattack Senior Member Join Date: Aug 2002 Location: Valley Center KS Posts: 3,525	I have flowmasters on my truck, I do like the sound, but I've heard that they don't flow the best (aka flowmiser or blowmaster). If I were to do it over (which maybe fairly soon) I'll probably get dynomax or hooker mufflers. __________________ Project Bruiser: 68 Pro-Touring C-10 5.3L / 4L60E Project Ironhide: 97 GMC Crew Cab 4x4 Cummins SOLD: '69 GMC 1/2T SWB TBI'd: Project No Buck Assembly Manual Index Sign up Thread!!! Factory Service Manual Index

11-04-2002, 05:40 PM	#5
70c10 67-72 Addict! Join Date: Feb 2002 Location: The TAX State! Posts: 7,857	My neighbor just installed Dynomax Superturbos in series behind his new headers on his big block F@#D and you can't hear them at all. He thought because he used 3" pipe it might be too loud so he used 2 muffs end to end. What a waste in my opinion. I love the sound of my 40 series Flows and have had no probs at all. __________________ Jim 1970 C/10 Fleetside w/Ghost Flames Lowered 4.5" front and 4" rear (Raked) 355/350 Turbo w/shift kit 10" Redneck Performance Verter w/2500 stall Hooker Super Comps part#2808-1 Performer RPM Air-Gap 12 Bolt w/3:73 gears- Eaton Posi Comp Cams XE262 with 1.6 Crane Energizers, Road Demon 625 and Brodix IK 180 heads

11-04-2002, 05:45 PM	#6
Slammed67 Progress = 0% Join Date: Nov 2001 Location: Kansas City, MO Posts: 2,108	I've got Dynomax Super Turbos and they sound awesome. Not too loud, but a nice deep tone. __________________ Jason - '67 GMC swb \| '57 Bel-Air 4dr hardtop \| '56 210 4dr Wagon \| 2000 GMC Sierra

11-04-2002, 04:10 PM	#2
crazy longhorn Fabricate till you "puke" Join Date: Jun 2002 Location: Ill Posts: 9,403	I have run dynomax superturbos on many vehicles, & like them......nice tone, but not too loud unless the throttle is opened up. You might consider the hemi superturbos for your BB.

11-04-2002, 06:05 PM	#7
JoetheMobster Listening since '86 Join Date: Sep 2001 Location: Canada Posts: 1,799	I have a big rust hole in my muffler, so it's LOUD!! COST? 0.00! Well, is cost is counted in time, it took a few years to get it to perfection....LMAO!! __________________ 2007 Saturn Aura - hey it WAS a GM product

11-04-2002, 10:30 PM	#8
mikep Used to have a truck Join Date: May 2002 Location: port orchard WA Posts: 1,552	Ive had a few cars with flowmasters and found them really annoying and tinny sounding. I'm running dynomax superturbos with 2 1/4" pipes now exiting out the side after the rear axle with what is probably the best exhaust job I have ever seen in one of our trucks. Its very quiet even with the headers and mild cam and runs great. __________________ No truck :-(

11-05-2002, 02:06 AM	#9
nate68 Registered User Join Date: Jan 2000 Location: ca Posts: 1,110	flowmasters aren't cheap. my terminators weren't too bad in price. dynomax has been having rebates lately __________________ 68 short step, 406/700r4, 9" w/discs.



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