Exhaust exits and tips pic needed - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**SOON2BLAZE** · 03-12-2010, 09:23 PM

Getting ready to have my dual exhaust hung next week, and I'm thinking straight out the back with some straight cut tips. Not 100% sold on this, but interested to see what others have done. Thanks, chris

packers05 · 03-12-2010, 09:56 PM

Mine is tucked up high and tight 2-1/2 it dumps right at the bumper with a slight turndown sounds ok to me I couldnt find a way to go out the side without having them hang low and visible by the leafs

Mint68 · 03-12-2010, 11:05 PM

Mine exits out the side, sorry no pictures. I've been told not to exit it straight out the back, it allows fumes in around the tailgate and rear hatch.

71RestoRod · 03-13-2010, 12:08 AM

Here's an example w/ the exhaust exiting out the sides. No fumes and tucked up nice and tight.

bouncytruck · 03-13-2010, 12:39 AM

Mine are tucked up and not really visible from the side. I haven't ever had any problems with exhaust fumes inside the truck with the hard top or the soft top on.

**jaros44sr** · 03-13-2010, 12:40 AM

Quote:

Originally Posted by 71RestoRod

Here's an example w/ the exhaust exiting out the sides. No fumes and tucked up nice and tight.

Got any pics of the other end of the exhaust, never did see your engine compartment...one of my favorite trucks, congrats on TOTM

71RestoRod · 03-13-2010, 01:57 AM

Quote:

Originally Posted by jaros44sr

Got any pics of the other end of the exhaust, never did see your engine compartment...one of my favorite trucks, congrats on TOTM

Thanks. Lots of engine (exhaust) and build pics on the webshots album (link is in my sig).

Here's a good shot:

http://inlinethumb27.webshots.com/21...600x600Q85.jpg

vtblazer · 03-13-2010, 10:07 AM

Side exhaust equates to fewer fumes.

**SOON2BLAZE** · 03-13-2010, 10:56 AM

Thanks for the pics and info guys!

Burt4x4 · 03-13-2010, 11:11 AM

If yer going offroad don't get turndowns off the mufflers, it's cheeper but the amount of trail dust you stir up is terriable...and yer buddies behind you will hate you hahaha
Straight out the back will cause fume issues when the top is on and back window open or not sealed, even with a soft top yu'll be smellin it..in most cases anyway.
This is my 3rd exhaust route..I gave my hardtop away so I am mostly topless or softtop..

I have a huge gastank so inorder for me to get the tips towards the rear the pipe had to come to the outside of my frame.

Here you can barily see the tip under/behind the bumper. My goal was Max clearance from below..up as high and tight as it could be.

Good Luck

**Gary 70 Jimmy** · 03-13-2010, 12:40 PM

One thing bad about the exaust out the back you cant drive with a soft top with the back window open it sucks the fumes right in. So you cant get a screen for the back window the new softtoper has zip out screen

72truckman · 03-13-2010, 02:04 PM

Dusty71blazer · 03-14-2010, 01:07 PM

When I got my Blazer the exhaust exited straight out the back, the first change I made was turning them out the side, I had fumes coming in very bad! It's better now but I still have some sealing issues. I would not recommend exiting the exhaust out the back.

**SOON2BLAZE** · 03-14-2010, 07:47 PM

Well I crawled under her today to see what looked best. 2wd with a 4/6 drop doesn't leave much room. I have a half cab, but usually run it topless. I'm going to put a ECE trailing arm crossmember in it this week to get some drive shaft clearance and run the exhaust through. thinking I might try to put the mufflers where the stock one was and dump behind the rear tire. Once it gets on the lift at the muffler shop it will be easier to determine. Like I said not much room under there. 2 flow masters are going to be a tight fit. Thanks for all the info.

**bigdon-70blazer** · 03-15-2010, 06:54 AM

This is a great thread and one with info I will soon have to use!

**jaros44sr** · 03-15-2010, 01:30 PM

I agree^^^, but need more pics

**Yukon Jack** · 03-16-2010, 04:38 PM

Out the side angled to the back and so far I'm not sucking fumes. The old exhaust was straight out the back and the fumes were terrible!

03-12-2010, 09:23 PM	#1
SOON2BLAZE Account Suspended Join Date: Aug 2005 Location: Southern UT Posts: 906	Exhaust exits and tips pic needed Getting ready to have my dual exhaust hung next week, and I'm thinking straight out the back with some straight cut tips. Not 100% sold on this, but interested to see what others have done. Thanks, chris

03-12-2010, 09:56 PM	#2
packers05 Registered User Join Date: Feb 2009 Location: minonk illinois Posts: 224	Re: Exhaust exits and tips pic needed Mine is tucked up high and tight 2-1/2 it dumps right at the bumper with a slight turndown sounds ok to me I couldnt find a way to go out the side without having them hang low and visible by the leafs

03-12-2010, 11:05 PM	#3
Mint68 Registered User Join Date: Nov 2004 Location: Nebraska Posts: 762	Re: Exhaust exits and tips pic needed Mine exits out the side, sorry no pictures. I've been told not to exit it straight out the back, it allows fumes in around the tailgate and rear hatch.

03-13-2010, 12:08 AM	#4
71RestoRod Registered User Join Date: Sep 2003 Location: Evergreen, CO Posts: 494	Re: Exhaust exits and tips pic needed Here's an example w/ the exhaust exiting out the sides. No fumes and tucked up nice and tight. __________________ 71 Blazer / GMPP ZZ383 / MPFI / 700R4 / 4-Wheel Disk / Ground-up frame off almost completed resto-mod

03-13-2010, 12:39 AM	#5
bouncytruck SKINNY TIRES RULE! Join Date: Sep 2001 Location: Bothell, WA Posts: 11,049	Re: Exhaust exits and tips pic needed Mine are tucked up and not really visible from the side. I haven't ever had any problems with exhaust fumes inside the truck with the hard top or the soft top on. Attached Images __________________ bouncytruck 1972 K5 The Hauler 1994 K1500 Suburban The Daily2010 Kia Soul Wife's Ride2014 Fiat 500L

03-13-2010, 10:07 AM	#8
vtblazer Registered User Join Date: Oct 2003 Location: Central Vermont Posts: 8,538	Re: Exhaust exits and tips pic needed Side exhaust equates to fewer fumes. Attached Images Last edited by vtblazer; 03-13-2010 at 10:07 AM.

03-13-2010, 10:56 AM	#9
SOON2BLAZE Account Suspended Join Date: Aug 2005 Location: Southern UT Posts: 906	Re: Exhaust exits and tips pic needed Thanks for the pics and info guys!

03-13-2010, 11:11 AM	#10
Burt4x4 Registered User Join Date: Feb 2000 Location: Modesto, CA Posts: 1,842	Re: Exhaust exits and tips pic needed If yer going offroad don't get turndowns off the mufflers, it's cheeper but the amount of trail dust you stir up is terriable...and yer buddies behind you will hate you hahaha Straight out the back will cause fume issues when the top is on and back window open or not sealed, even with a soft top yu'll be smellin it..in most cases anyway. This is my 3rd exhaust route..I gave my hardtop away so I am mostly topless or softtop.. I have a huge gastank so inorder for me to get the tips towards the rear the pipe had to come to the outside of my frame. Here you can barily see the tip under/behind the bumper. My goal was Max clearance from below..up as high and tight as it could be. Good Luck __________________ 1972 K5 MPFI454/Sm465/Np205/D60/14FFd/Re-Centerd H1s w/Swamper Iroks

03-13-2010, 12:40 PM	#11
Gary 70 Jimmy Senior Member Join Date: Jan 2002 Location: Burghill, Ohio 44404 Posts: 3,402	Re: Exhaust exits and tips pic needed One thing bad about the exaust out the back you cant drive with a soft top with the back window open it sucks the fumes right in. So you cant get a screen for the back window the new softtoper has zip out screen Attached Images __________________ 1972 GMC Jimmy 1/2 4X4 4wheel camper 1970 GMC Jimmy 1/2 4X4 350 1969 Chevy Blazer 1/2 4X4 307 1967 chevy LWB 3/4 396 Last edited by Gary 70 Jimmy; 03-15-2010 at 08:04 AM.

03-13-2010, 02:04 PM	#12
72truckman Registered User Join Date: Mar 2006 Location: San Ramon, California Posts: 276	Re: Exhaust exits and tips pic needed __________________ My 1972 Blazer 5.3 E85/ NV4500 5spd 4x4 Work in Progress http://67-72chevytrucks.com/vboard/s...d.php?t=291482 **SOLD!!!!!** 1965 GMC 4X4 http://67-72chevytrucks.com/vboard/s...d.php?t=294727

03-14-2010, 01:07 PM	#13
Dusty71blazer Registered User Join Date: Nov 2009 Location: Sioux City, IA Posts: 158	Re: Exhaust exits and tips pic needed When I got my Blazer the exhaust exited straight out the back, the first change I made was turning them out the side, I had fumes coming in very bad! It's better now but I still have some sealing issues. I would not recommend exiting the exhaust out the back. __________________ Dustin '97 Dodge Ram (daily driver) '71 Blazer (supposed to be a toy... insists on being a project) '85 Monte Carlo SS (project)

03-14-2010, 07:47 PM	#14
SOON2BLAZE Account Suspended Join Date: Aug 2005 Location: Southern UT Posts: 906	Re: Exhaust exits and tips pic needed Well I crawled under her today to see what looked best. 2wd with a 4/6 drop doesn't leave much room. I have a half cab, but usually run it topless. I'm going to put a ECE trailing arm crossmember in it this week to get some drive shaft clearance and run the exhaust through. thinking I might try to put the mufflers where the stock one was and dump behind the rear tire. Once it gets on the lift at the muffler shop it will be easier to determine. Like I said not much room under there. 2 flow masters are going to be a tight fit. Thanks for all the info.

03-15-2010, 06:54 AM	#15
bigdon-70blazer Registered User Join Date: Jan 2007 Location: Poplar Bluff, MO Posts: 1,502	Re: Exhaust exits and tips pic needed This is a great thread and one with info I will soon have to use!

03-15-2010, 01:30 PM	#16
jaros44sr Senior Member Join Date: May 2006 Location: Philadelphia, Pa. 19454 Posts: 9,704	Re: Exhaust exits and tips pic needed I agree^^^, but need more pics __________________ Semper Fi...Uncle Sam, you da man All parts offered to help are free, unless otherwise noted Dont try this stuff in my build thread, unless you have 55 years of mechanical OTJ training SAFETY FIRST AS usual, off topic They say your mind goes second, can't remember the first Jim Last edited by jaros44sr; 03-15-2010 at 01:32 PM.

03-16-2010, 04:38 PM	#17
Yukon Jack Post Whore Join Date: Feb 2000 Location: Rose Hill, KS, USA Posts: 12,684	Re: Exhaust exits and tips pic needed Out the side angled to the back and so far I'm not sucking fumes. The old exhaust was straight out the back and the fumes were terrible! Attached Images __________________ 1970 Blazer with a 400 sbc and 4" lift 1980 Pontiac Trans Am, 455 Oldsmobile 2012 Kawasaki Concours 14



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