Exhaust ??????????? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Dandeluxe · 09-12-2002, 05:20 PM

I just got back from the custom exhaust shop . i am thinking of putting on a new exhaust system. i asked the guy there if he could put on something that would quiet it down when im on the highway. he said with me running a corvette motor with 375 horse it would be hard to do. and running 2.5 inch pipes from corvette manifolds all the way back to the back. he suggested i go with 2.5 inch pipes with a 70 series flowmasters. note: it has flowmasters on it now . is there any systems that would quiet it down but still give me the performance and horsepower? the system i have now is all pieced together and i have to move the rear pipes to get the new rear blazer tank in the back. so thats why im gonna put a new system on it. any suggestions?
thanks, DAN

vfrdude · 09-12-2002, 06:17 PM

Flowmaster claims that the 70 series will make as much horsepower as say, the 40 series - The only difference is the sound level. A co-worker was inquiring about mufflers for his V-10 Dodge truck, and this is the info they gave him...

Mike C · 09-12-2002, 10:36 PM

Walker Dynomax Hemi Turbo mufflers. Excellent flow and really quiet. I have them on my JImmy with 2 1/2" exhasut and the Corvette manifolds. SOunds trick when you're on it, but quiet when you're not. Not a Flowmaster fan although I still have a set I bought in 1985 on my Camaro. The Hemi Turbos are less than $40 each from Summit. According to Walker, each hemi turbo will support 200 hp with no loss from the muffler. Torque Technologies recommends the Hemi Turbo for their 2 1/2" mandrel bent exhausts for Camaros and Chevelles for the street.

Slammed67 · 09-12-2002, 10:44 PM

I just ordered a set of Dynomax Super Turbos for my '67. I had a set before I started my rebuild and loved them. You are right.... quiet until you get on it. Are the Hemi Turbos more quiet than the Super Turbos?

justin · 09-12-2002, 10:53 PM

Do those Dynomax supers have a pretty deep tone? I am looking for a rumble when I cruze around town!

Mike C · 09-13-2002, 10:58 AM

They have a deep TONE, but they also have a low VOLUME. They sound excellent IMO, but I want powerful AND quiet. I want to profile based on how my truck looks, not draw attention becfause it is loud. Yes, they are quieter than the regular super turbo. They are virtually the same, just in a 20" case instead of a 14" case.

Dandeluxe · 09-14-2002, 11:39 AM

mike c,
thanks for the info. ill look into those mufflers at summitt thats exactly what im lookin for power and performance but quiet . im into the looks more than attracting from the noise. thanks ,DAN

**jerry moss** · 09-14-2002, 07:09 PM

i've been in the muffler business since back in the 80s. if you want performance with less noise check out magnaflows, made by car sound. they are a straight through design but are real mellow sounding until you stick your foot in it.over the years i've redone two vehicles that burned because of flowmasters and their excess heat-luckily i didn't do either of them the first time.

Dandeluxe · 09-14-2002, 07:25 PM

jerry, where do i get the magnaflows at ? does summitt sell them?

**jerry moss** · 09-14-2002, 07:28 PM

i believe summit and jegs both sell them, if not you can pm me and i'll get you a price.

Slammed67 · 09-14-2002, 10:02 PM

Mike C... I agree.... nice deep tone, but not very loud. I considered going with Flowmasters this time, but just knew I'd get sick of them over time. Can't wait to get them piped up!

O'l Buck · 09-15-2002, 01:23 AM

loud pipes save lives!!!

09-12-2002, 05:20 PM	#1
Dandeluxe Senior Member Join Date: Nov 2001 Location: st.louis mo. Posts: 717	Exhaust ??????????? I just got back from the custom exhaust shop . i am thinking of putting on a new exhaust system. i asked the guy there if he could put on something that would quiet it down when im on the highway. he said with me running a corvette motor with 375 horse it would be hard to do. and running 2.5 inch pipes from corvette manifolds all the way back to the back. he suggested i go with 2.5 inch pipes with a 70 series flowmasters. note: it has flowmasters on it now . is there any systems that would quiet it down but still give me the performance and horsepower? the system i have now is all pieced together and i have to move the rear pipes to get the new rear blazer tank in the back. so thats why im gonna put a new system on it. any suggestions? thanks, DAN __________________ 1969 cst swb 350/400 th . DANNY C . ["]FRIENDS DONT LET FRIENDS DRIVE F@RD$!! 1969 cst swb corvette hugger orange with 400 hp sbc I started out with nothing and i held on to it

09-12-2002, 06:17 PM	#2
vfrdude Registered User Join Date: May 2002 Location: Oakley, Ca. USA Posts: 137	Flowmaster claims that the 70 series will make as much horsepower as say, the 40 series - The only difference is the sound level. A co-worker was inquiring about mufflers for his V-10 Dodge truck, and this is the info they gave him... __________________ Rudy Fierros '95 Honda VFR750F Used to have a '71 Chevy Stepside, Guards Red, Lowered 4" rear, 3" front, White Oak bed wood, 700R4 w/373 gears until some low life stole it!

09-12-2002, 10:36 PM	#3
Mike C Registered User Join Date: Dec 1999 Location: Austin, TX, USA Posts: 7,727	Walker Dynomax Hemi Turbo mufflers. Excellent flow and really quiet. I have them on my JImmy with 2 1/2" exhasut and the Corvette manifolds. SOunds trick when you're on it, but quiet when you're not. Not a Flowmaster fan although I still have a set I bought in 1985 on my Camaro. The Hemi Turbos are less than $40 each from Summit. According to Walker, each hemi turbo will support 200 hp with no loss from the muffler. Torque Technologies recommends the Hemi Turbo for their 2 1/2" mandrel bent exhausts for Camaros and Chevelles for the street. __________________ 44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax

09-12-2002, 10:44 PM	#4
Slammed67 Progress = 0% Join Date: Nov 2001 Location: Kansas City, MO Posts: 2,108	I just ordered a set of Dynomax Super Turbos for my '67. I had a set before I started my rebuild and loved them. You are right.... quiet until you get on it. Are the Hemi Turbos more quiet than the Super Turbos? __________________ Jason - '67 GMC swb \| '57 Bel-Air 4dr hardtop \| '56 210 4dr Wagon \| 2000 GMC Sierra

09-12-2002, 10:53 PM	#5
justin PROJECT LO-LYF Join Date: Jul 2002 Location: MO. Posts: 283	Do those Dynomax supers have a pretty deep tone? I am looking for a rumble when I cruze around town! __________________ FOUNDING MEMBER OF THE "O-SH*T, THAT TRUCK IS LOW" CLUB PROJECT: LO-LYF Bagged 68 Shorty home.att.net/~justin.lewis

09-13-2002, 10:58 AM	#6
Mike C Registered User Join Date: Dec 1999 Location: Austin, TX, USA Posts: 7,727	They have a deep TONE, but they also have a low VOLUME. They sound excellent IMO, but I want powerful AND quiet. I want to profile based on how my truck looks, not draw attention becfause it is loud. Yes, they are quieter than the regular super turbo. They are virtually the same, just in a 20" case instead of a 14" case. __________________ 44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax

09-14-2002, 11:39 AM	#7
Dandeluxe Senior Member Join Date: Nov 2001 Location: st.louis mo. Posts: 717	exhaust ? mike c, thanks for the info. ill look into those mufflers at summitt thats exactly what im lookin for power and performance but quiet . im into the looks more than attracting from the noise. thanks ,DAN __________________ 1969 cst swb 350/400 th . DANNY C . ["]FRIENDS DONT LET FRIENDS DRIVE F@RD$!! 1969 cst swb corvette hugger orange with 400 hp sbc I started out with nothing and i held on to it

09-14-2002, 07:09 PM	#8
jerry moss Born Psycho Join Date: Feb 2001 Location: brentwood,cal,usa Posts: 4,936	i've been in the muffler business since back in the 80s. if you want performance with less noise check out magnaflows, made by car sound. they are a straight through design but are real mellow sounding until you stick your foot in it.over the years i've redone two vehicles that burned because of flowmasters and their excess heat-luckily i didn't do either of them the first time. __________________ jerry moss 72 cheyenne super K20- tilt,tach,vacuum,speedwarning,buckets,shoulder belts,am/fm,tow hooks,bumper guards,toolbox,aux. fuel tank,posi front and rear,plus other goodies!!! SOLD 69 suburban K20-tilt,tach,vacuum,speedwarning,buckets,shoulder belts,am/fm,4 inch all spring lift,4 speed, 14 bolt full floater, dana 44 HD,warn winch,posi front and rear,tow hooks,plus other goodies. 73/80 chevy/gmc K20 SB400,turbo 400,205,tilt,a-c,gas hog. 77 K/5 cheyenne blazer-daily driver/beater. SON HAS IT NOW BRENTWOOD,CALIFORNIA

09-14-2002, 07:25 PM	#9
Dandeluxe Senior Member Join Date: Nov 2001 Location: st.louis mo. Posts: 717	muffler? jerry, where do i get the magnaflows at ? does summitt sell them? __________________ 1969 cst swb 350/400 th . DANNY C . ["]FRIENDS DONT LET FRIENDS DRIVE F@RD$!! 1969 cst swb corvette hugger orange with 400 hp sbc I started out with nothing and i held on to it

09-14-2002, 07:28 PM	#10
jerry moss Born Psycho Join Date: Feb 2001 Location: brentwood,cal,usa Posts: 4,936	i believe summit and jegs both sell them, if not you can pm me and i'll get you a price. __________________ jerry moss 72 cheyenne super K20- tilt,tach,vacuum,speedwarning,buckets,shoulder belts,am/fm,tow hooks,bumper guards,toolbox,aux. fuel tank,posi front and rear,plus other goodies!!! SOLD 69 suburban K20-tilt,tach,vacuum,speedwarning,buckets,shoulder belts,am/fm,4 inch all spring lift,4 speed, 14 bolt full floater, dana 44 HD,warn winch,posi front and rear,tow hooks,plus other goodies. 73/80 chevy/gmc K20 SB400,turbo 400,205,tilt,a-c,gas hog. 77 K/5 cheyenne blazer-daily driver/beater. SON HAS IT NOW BRENTWOOD,CALIFORNIA

09-14-2002, 10:02 PM	#11
Slammed67 Progress = 0% Join Date: Nov 2001 Location: Kansas City, MO Posts: 2,108	Mike C... I agree.... nice deep tone, but not very loud. I considered going with Flowmasters this time, but just knew I'd get sick of them over time. Can't wait to get them piped up! __________________ Jason - '67 GMC swb \| '57 Bel-Air 4dr hardtop \| '56 210 4dr Wagon \| 2000 GMC Sierra

09-15-2002, 01:23 AM	#12
O'l Buck Recovering Truck Driver Join Date: Mar 2002 Location: Orleans, NE USA Posts: 1,883	loud pipes save lives!!! __________________ 67 K-20 350, SM465, Eaton rear, 4.56 no spin option 00 Dodge 2500 4x4, 24V cummins, 5 speed Chad South Central Nebraska

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