Side exhaust questions/opinion??? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

HotRod929 · 12-10-2002, 01:07 AM

I have decided I want side exhaust pipes on my truck but I cant decide weather to exit infront or behind the rear tires. What do you guys recomend? What are the differences as far as sound level and performance? Also If you got any pics of side exhaust infront of the rear tires please post the pics. Im not sure if I like how they look. Thanks

HotRod

low 84 · 12-10-2002, 01:33 AM

heres my 64. i made the exhaust for it.

i loved that truck. wish i could have kept it. i like the look/sound of exit before the rear tires.

Low69CST · 12-10-2002, 01:33 AM

If you exit behind your rear tire then it'll be much quieter and won't get as much gas in the truck. I wouldn't think there would be much performance difference, unless your racing and want every .001 of HP you can.

HotRod929 · 12-10-2002, 01:38 AM

low 84 : Your pipes angled out right vs. a strait 90 infront of the tire? THat looks pritty sweet.

Also will a shorter glass pack keep the same sound as a longer one but just be louder? Because i have glass packs and I love the way they sound but just wish they were a bit louder. I thought that maybe going to a shorter glass pack would keep the same type of sound but just make it louder. Let me know if im just completly wrong. Thanks

HotRod

low 84 · 12-10-2002, 01:56 AM

yes i angled them out at 45 degree angle. i think you have the right concept on the glass packs, the shorter ones are louder but still have the same glass pack tone. i have better pics of the exhaust but my scanner has crapped out on me.

low69cst - i not sure what you mean by having gas in cab. if you mean fumes, the only fumes i ever had in my cab were due to the fact that the gas tank basically rides shotgun. not from the exhaust.

crazy longhorn · 12-10-2002, 02:35 AM

the exhaust will be louder turned out ahead of the tires. If you like to hear it, thats the way to go......also it looks good IMO. My system is 2 1/2" , with H pipe running through Dynomax superturbos, & has 3" tailpipes with stainless tips......loud enough to hear it, but not so loud that the city cops hassle me. With the shorter system, & less bends you probably wont want a real beligerent set of muffs. I tryed a set of 40s flows,but they didnt stay on very long.......

JVictor75 · 12-10-2002, 04:38 AM

I used to have 78" laker side pipes on the side of my '68... they look really sweet.

Don't go for the cheapies, pay for the "real" laker pipes with the perforated heat shielding in shiny chrome. That combined with fatty wheels, baby moons and a monochromatic paint scheme just looks awesome combined with minimalistic chrome on the truck, IMHO.

:Sigh: I used to have a picture of yours truly at the ripe old age of about four with my lil red wagon and Momma's '68 CST in the background. Yes, it was Mom's truck, Dad had a :shudder: Hornet station wagon. My parents still tease me that I used to get asked what Daddies car sounded like and I would go, putter putter putter, and then thay would ask me what momma's truck sounded like and I'd go: VROOOOOOOOMMMM Rumble Rumble Rumble.

The truck was ochre with a custom black vinyl roof and tonneau cover, no emblems, the california elephant ear mirrors, and curb feelers. (What can I say, it was 1979!)

It had 11" deep dish chrome-reverse cragar rims with L60's and baby moons. Dad, in his ever-loving wisdom, left 'em sitting on the workbench in San Jose, CA when we moved to Texas, yay Dad.

Long Knight · 12-10-2002, 01:08 PM

Bigger glass packs have a lower rumble and are a little quieter, because they are bigger mufflers. The guy at the exhaust shop said if I wanted it louder to put on some big tips, would make it have that strong rumble resonance.

VDOG · 12-10-2002, 05:52 PM

My plan is to run my pipes out the back, just before the tailgate.
Since I plan on relocating my gas tank, should I install it before I my pipes, or it does not matter?

crazy longhorn · 12-10-2002, 06:56 PM

Vdog, you want to do the tank first, then the pipes......or you may be cussin yourself

chevjayfsd · 12-10-2002, 07:25 PM

THis is before we repositioned them...

Sorry for smallness

special70gmc · 12-10-2002, 07:41 PM

can kinda see it. the gmc before i tore it down

VDOG · 12-10-2002, 07:52 PM

Thanks Longhorn. Now I have to find a tank while im on break.
I ordered an HEI and Headman Headers from Jegs. Was about to head to the muffler shop. Ok now I will wait.

crazy longhorn · 12-10-2002, 08:26 PM

Vdog, you could have the exhaust done, & run turn downs after the muffs for temporary......just explain to the man doing the ex work that you want to add tailpipes later, & he will hook you up with the proper offsets/placement on the muffs......

billogna · 12-11-2002, 01:06 AM

I've always liked side pipes. Mine's in front of the rear wheels, angled back and down a little. It's also much easier to remove a whole side, if you need to.

ChevLoRay · 12-11-2002, 12:12 PM

I am running Hooker headers, 2.5-inch pipes from the collectors, through a pair of Flowmaster 40-series, which dump into another pair of 2.5-inch tailpipes with slash-cut tips angled out, just ahead of the rear tires. The angle of the tip is parallel to the side of the body.

There is NO soundproofing in my truck, anywhere. My wife refuses to ride in it because of the harmonic droning sound it makes....kinda like the harmonic droning my ex-wife made! Anyway, it sounds good, but my goal is to have an X-pipe and extend the tailpipes out to the rear, with the ends turning down and barely visible below the rear bumper ends.

So, do I like them dumping in front of the rear tires, or coming to the rear of the body? Yeah.

GreenMystChevy · 12-11-2002, 01:51 PM

I was told that if you put the glasspacks on backwards that they are louder, so of course I tried it. Don't know what they sound like on my truck when facing the correct way but on backwards they sure are loud. If you look inside one, they have little pockets for the spent gasses to get caught in to quiet the noise down, when you face it the other way, the gasses just flow right over the pockets kinda like a modified straight pipe. Just a thought.

crazy longhorn · 12-11-2002, 04:02 PM

Yup, glasspacks are loud as hell installed backward......if you plan to do that, save yourself the cash on the packs & just run straightpipe! One thought tho......i tryed it (straightpipes) on the longhorn a few yrs back with a mild 355, headers, 2 1/4" pipe out the butt with 3 1/2x 18" chrome cans.......it sorta sounded like the headers were uncorked at the back bumper

It was cool for a couple times around the block.......but then that squad car was cruisin the hood.....

HvyChevy454 · 12-12-2002, 01:32 AM

if you plan to lower it, it goes lower alot easier if you dont have to route the pipes over the axle.

12-10-2002, 01:07 AM	#1
HotRod929 Registered User Join Date: Mar 2002 Location: Bondurant, IA but in Worcester, MA for school Posts: 767	Side exhaust questions/opinion??? I have decided I want side exhaust pipes on my truck but I cant decide weather to exit infront or behind the rear tires. What do you guys recomend? What are the differences as far as sound level and performance? Also If you got any pics of side exhaust infront of the rear tires please post the pics. Im not sure if I like how they look. Thanks HotRod __________________ 1970 Chevy C-20 350 V-8 Turbo 350 w/ shift kit Dana 60 w/ 4.10 gears AND Powr-Loc POSI New Additions: Summit Headers 135amp alternator Proform HEI Edelbrock 1406 600cfm carb Sunpro Tach Powr-Loc POSI Edelbrock Performer RPM Intake MSD 6A Ignition Box AIM: HotRod929 Visit My Site: http://1970chevy.netfirms.com/

12-10-2002, 01:33 AM	#2
low 84 Registered User Join Date: Jan 2002 Location: Houston, TX Posts: 2,144	heres my 64. i made the exhaust for it. i loved that truck. wish i could have kept it. i like the look/sound of exit before the rear tires. __________________ '51 F100, backhalf with a narrowed 9 and coil overs, 18.5" mickeys, monte front clip, +400" sbc in the works '05 1500 Crew Cab RIP '84 swb 5/7 drop, solid cammed 408 w/ fully ported dart heads, th350 w/ 10 inch hughes, 12 bolt w/ 3.73 richmonds and a locker '80 swb 4x4 in progress: 7" lift, 350 th350/np205, d44 and 1.5" ORD tie rod, 14BFF w/discs , armored diff covers, 40" MTR's

12-10-2002, 01:33 AM	#3
Low69CST Registered User Join Date: May 2000 Location: Frankfort, Kentucky, USA Posts: 2,163	If you exit behind your rear tire then it'll be much quieter and won't get as much gas in the truck. I wouldn't think there would be much performance difference, unless your racing and want every .001 of HP you can. __________________ '69 CST Short fleetside Lowered, 400 small block, 700R4, 4 wheel disc brakes, front sway bar & rear camaro sway bar (in progress) '87 V10 4x4 Short Fleetside Quad Suspension and Dual Tanks

12-10-2002, 01:38 AM	#4
HotRod929 Registered User Join Date: Mar 2002 Location: Bondurant, IA but in Worcester, MA for school Posts: 767	low 84 : Your pipes angled out right vs. a strait 90 infront of the tire? THat looks pritty sweet. Also will a shorter glass pack keep the same sound as a longer one but just be louder? Because i have glass packs and I love the way they sound but just wish they were a bit louder. I thought that maybe going to a shorter glass pack would keep the same type of sound but just make it louder. Let me know if im just completly wrong. Thanks HotRod __________________ 1970 Chevy C-20 350 V-8 Turbo 350 w/ shift kit Dana 60 w/ 4.10 gears AND Powr-Loc POSI New Additions: Summit Headers 135amp alternator Proform HEI Edelbrock 1406 600cfm carb Sunpro Tach Powr-Loc POSI Edelbrock Performer RPM Intake MSD 6A Ignition Box AIM: HotRod929 Visit My Site: http://1970chevy.netfirms.com/

12-10-2002, 01:56 AM	#5
low 84 Registered User Join Date: Jan 2002 Location: Houston, TX Posts: 2,144	yes i angled them out at 45 degree angle. i think you have the right concept on the glass packs, the shorter ones are louder but still have the same glass pack tone. i have better pics of the exhaust but my scanner has crapped out on me. low69cst - i not sure what you mean by having gas in cab. if you mean fumes, the only fumes i ever had in my cab were due to the fact that the gas tank basically rides shotgun. not from the exhaust. __________________ '51 F100, backhalf with a narrowed 9 and coil overs, 18.5" mickeys, monte front clip, +400" sbc in the works '05 1500 Crew Cab RIP '84 swb 5/7 drop, solid cammed 408 w/ fully ported dart heads, th350 w/ 10 inch hughes, 12 bolt w/ 3.73 richmonds and a locker '80 swb 4x4 in progress: 7" lift, 350 th350/np205, d44 and 1.5" ORD tie rod, 14BFF w/discs , armored diff covers, 40" MTR's

12-10-2002, 02:35 AM	#6
crazy longhorn Fabricate till you "puke" Join Date: Jun 2002 Location: Ill Posts: 9,402	the exhaust will be louder turned out ahead of the tires. If you like to hear it, thats the way to go......also it looks good IMO. My system is 2 1/2" , with H pipe running through Dynomax superturbos, & has 3" tailpipes with stainless tips......loud enough to hear it, but not so loud that the city cops hassle me. With the shorter system, & less bends you probably wont want a real beligerent set of muffs. I tryed a set of 40s flows,but they didnt stay on very long....... __________________ 69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears....

12-10-2002, 04:38 AM	#7
JVictor75 Maintenance Man Join Date: May 2002 Location: Phoenix, AZ US Posts: 213	I used to have 78" laker side pipes on the side of my '68... they look really sweet. Don't go for the cheapies, pay for the "real" laker pipes with the perforated heat shielding in shiny chrome. That combined with fatty wheels, baby moons and a monochromatic paint scheme just looks awesome combined with minimalistic chrome on the truck, IMHO. :Sigh: I used to have a picture of yours truly at the ripe old age of about four with my lil red wagon and Momma's '68 CST in the background. Yes, it was Mom's truck, Dad had a :shudder: Hornet station wagon. My parents still tease me that I used to get asked what Daddies car sounded like and I would go, putter putter putter, and then thay would ask me what momma's truck sounded like and I'd go: VROOOOOOOOMMMM Rumble Rumble Rumble. The truck was ochre with a custom black vinyl roof and tonneau cover, no emblems, the california elephant ear mirrors, and curb feelers. (What can I say, it was 1979!) It had 11" deep dish chrome-reverse cragar rims with L60's and baby moons. Dad, in his ever-loving wisdom, left 'em sitting on the workbench in San Jose, CA when we moved to Texas, yay Dad.

12-10-2002, 01:08 PM	#8
Long Knight Spank 'em if you got 'em! Join Date: Nov 2002 Location: Kansas City Posts: 628	Bigger glass packs have a lower rumble and are a little quieter, because they are bigger mufflers. The guy at the exhaust shop said if I wanted it louder to put on some big tips, would make it have that strong rumble resonance. __________________ Long Knight '71 C-20, 350ci, TH350, Edl. 1406 Carb w/elec.choke, Ignitor ignition, Viper Tires, Orange Dipstick

12-10-2002, 05:52 PM	#9
VDOG Grand PooBaa Member Join Date: Jan 2001 Location: LA, CA Posts: 5,302	My plan is to run my pipes out the back, just before the tailgate. Since I plan on relocating my gas tank, should I install it before I my pipes, or it does not matter?

12-10-2002, 06:56 PM	#10
crazy longhorn Fabricate till you "puke" Join Date: Jun 2002 Location: Ill Posts: 9,402	Vdog, you want to do the tank first, then the pipes......or you may be cussin yourself __________________ 69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears....

12-10-2002, 07:25 PM	#11
chevjayfsd Project 7dos Join Date: Aug 2001 Location: Abilene, Texas Posts: 876	THis is before we repositioned them... Sorry for smallness Attached Images __________________ 7DOS - 1972 C-10 350/350 Porterbuilt/Accuair 20x8.5/20x10 Ride Low or Die PSSST - Yes it's bagged. 7dos build thread: http://67-72chevytrucks.com/vboard/s...d.php?t=610290

12-10-2002, 07:41 PM	#12
special70gmc Registered User Join Date: Sep 2002 Location: long island, new york Posts: 1,333	can kinda see it. the gmc before i tore it down Attached Images __________________ 1986 c-10 swb 5/7 drop 20'' coys 1958 belair 2door

12-10-2002, 07:52 PM	#13
VDOG Grand PooBaa Member Join Date: Jan 2001 Location: LA, CA Posts: 5,302	Thanks Longhorn. Now I have to find a tank while im on break. I ordered an HEI and Headman Headers from Jegs. Was about to head to the muffler shop. Ok now I will wait.

12-10-2002, 08:26 PM	#14
crazy longhorn Fabricate till you "puke" Join Date: Jun 2002 Location: Ill Posts: 9,402	Vdog, you could have the exhaust done, & run turn downs after the muffs for temporary......just explain to the man doing the ex work that you want to add tailpipes later, & he will hook you up with the proper offsets/placement on the muffs...... __________________ 69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears....

12-11-2002, 01:06 AM	#15
billogna Registered User Join Date: Apr 2002 Location: Choctaw, OK Posts: 235	I've always liked side pipes. Mine's in front of the rear wheels, angled back and down a little. It's also much easier to remove a whole side, if you need to. Attached Images __________________ '69 Chev Cust/10 swb, 350/700R4, 5"/6" '70 Chev C10 swb, 67 front, 454/700r4, 4"/5" '73 Chev stepper, 350/3 spd '84 Chev K20 350/4 spd '91 GMC 1500 Suburban 4x4, 350/700R4



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12-11-2002, 12:12 PM	#16
ChevLoRay Old Skool Club Join Date: Jun 2001 Location: Benton, AR "The Heart of Arkansas" Posts: 10,880	I am running Hooker headers, 2.5-inch pipes from the collectors, through a pair of Flowmaster 40-series, which dump into another pair of 2.5-inch tailpipes with slash-cut tips angled out, just ahead of the rear tires. The angle of the tip is parallel to the side of the body. There is NO soundproofing in my truck, anywhere. My wife refuses to ride in it because of the harmonic droning sound it makes....kinda like the harmonic droning my ex-wife made! Anyway, it sounds good, but my goal is to have an X-pipe and extend the tailpipes out to the rear, with the ends turning down and barely visible below the rear bumper ends. So, do I like them dumping in front of the rear tires, or coming to the rear of the body? Yeah. __________________ Member Nr. 2770 '96 GMC Sportside; 4.3/SLT - Daily driven....constantly needs washed. '69 C-10 SWB; 350/TH400 - in limbo The older I get, the better I was.

12-11-2002, 01:51 PM	#17
GreenMystChevy Registered User Join Date: Jan 2002 Location: Woodinville, WA Posts: 513	I was told that if you put the glasspacks on backwards that they are louder, so of course I tried it. Don't know what they sound like on my truck when facing the correct way but on backwards they sure are loud. If you look inside one, they have little pockets for the spent gasses to get caught in to quiet the noise down, when you face it the other way, the gasses just flow right over the pockets kinda like a modified straight pipe. Just a thought. __________________ Jeremy '71 C-10 '72 GMC K2500 '72 Nova (Dad's) '70 Chevelle SS '55 Sedan Delivery Attempting to build up this here 4x4...make her real tall and purty...well, maybe just tall

12-11-2002, 04:02 PM	#18
crazy longhorn Fabricate till you "puke" Join Date: Jun 2002 Location: Ill Posts: 9,402	Yup, glasspacks are loud as hell installed backward......if you plan to do that, save yourself the cash on the packs & just run straightpipe! One thought tho......i tryed it (straightpipes) on the longhorn a few yrs back with a mild 355, headers, 2 1/4" pipe out the butt with 3 1/2x 18" chrome cans.......it sorta sounded like the headers were uncorked at the back bumper It was cool for a couple times around the block.......but then that squad car was cruisin the hood..... __________________ 69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears....

12-12-2002, 01:32 AM	#19
HvyChevy454 Slowly getting CRSS... Join Date: Jul 2001 Location: Lutz, Florida Posts: 656	if you plan to lower it, it goes lower alot easier if you dont have to route the pipes over the axle. __________________ -Nic Lutz, Fl My Team Website The Heavy Chevy Website ------------------ 72 Cheyenne 10 LWB GM 12-bolt 3.08 w/ Auburn Posi 91 454 Edel Performer RPM Intake 750 cfm carb Comp Cam 268/.495 Hedman Headers Dual 3'' Exhaust 71 Cheyenne 20 4x4 Fact. A/C PS PB Tilt Currently in the works... Speak Softly and Carry A Big Block... There is No replacement for Displacement... "If everything seems under control, you're just not going fast enough." - Mario Andretti

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