Performance Discuss Engine, Suspension, Drivetrain, and all other performance modifications here.
10-16-2006, 10:52 PM
#1
AF Newbie
Join Date: Jun 2005
Posts: 21
Dual Exhaust
well its been awhile since i posted i bought a 1997 Bravada about 8 months ago and love the thing i had my local muffler shop slap on a flow sound performance muffler just kind of cut off big ole one weld in cool soundin one i got a CAI sucks in some serious air i want a Throttle Body spacer any one know about these? and is it possible i can get a y pipe to make my truck have dual exhaust i like that look alot let me kno thanks.. AJ
10-28-2006, 05:10 AM
#2
AF -Advisor
Join Date: Sep 2003
Posts: 13,557
Re: Dual Exhaust
First off....please stop asking 6 questions in one sentence......yeesh.
Don't bother with the y-pipe or the TB spacer. Neither of them wil net you anything.
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1995 Factory Blazer Service Manual for sale, PM if interested.
10-28-2006, 11:28 AM
#3
GM S-Series Mod
AF Moderator
Join Date: Aug 2005
Posts: 2,582
Re: Dual Exhaust
the 4.3 v6 will loose performance with true duals. you may be able to get away with a split rear cat back. dont get a throttle body spacer. they do nothing to improve performance.
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2000 Chevy Blazer ZR2
Performance: AEM intake, TB mod, CRMB custom y-pipe w/precat deleted, 3in catco cat, 2.5in exhaust w/ Flowmaster 40 DF,
March pulleys, MSD SF ignition, Taylor 8.2mm wires
Suspension: Knaffle 1.5in lift shackles, 1.25in rear wheel spacers, 31in BFG AT's
Exterior: black bowties, bug guard, vent visors
Interior: Pioneer speakers, Scanguage II
http://www.cardomain.com/ride/3013891
Last edited by ZL1power69 : 12-31-2006 at 01:12 AM .
12-31-2006, 01:09 AM
#4
AF Regular
Join Date: Jun 2005
Posts: 132
Re: Dual Exhaust
so.... how does true dual hurt the 4.3
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you may have a faster car.....but i can still drive over yours
12-31-2006, 01:15 AM
#5
GM S-Series Mod
AF Moderator
Join Date: Aug 2005
Posts: 2,582
Re: Dual Exhaust
Quote:
Originally Posted by agcneo
so.... how does true dual hurt the 4.3
not enough back pressure to perform properly. the furthest you should go on a mostly stock 4.3 is a 2.5in single exhaust.
__________________
2000 Chevy Blazer ZR2
Performance: AEM intake, TB mod, CRMB custom y-pipe w/precat deleted, 3in catco cat, 2.5in exhaust w/ Flowmaster 40 DF,
March pulleys, MSD SF ignition, Taylor 8.2mm wires
Suspension: Knaffle 1.5in lift shackles, 1.25in rear wheel spacers, 31in BFG AT's
Exterior: black bowties, bug guard, vent visors
Interior: Pioneer speakers, Scanguage II
http://www.cardomain.com/ride/3013891
12-31-2006, 02:11 AM
#6
AF Regular
Join Date: Jun 2005
Posts: 132
Re: Dual Exhaust
now what if im running cams, lifters, intake, headers, and tuned? can i throw a dual on then
__________________
you may have a faster car.....but i can still drive over yours
12-31-2006, 11:37 AM
#7
GM S-Series Mod
AF Moderator
Join Date: Aug 2005
Posts: 2,582
Re: Dual Exhaust
Quote:
Originally Posted by agcneo
now what if im running cams, lifters, intake, headers, and tuned? can i throw a dual on then
if your doing a fully built engine, then u could consider duals, but i still don't think you would take full advantage of them unless you are considering forced induction.
__________________
2000 Chevy Blazer ZR2
Performance: AEM intake, TB mod, CRMB custom y-pipe w/precat deleted, 3in catco cat, 2.5in exhaust w/ Flowmaster 40 DF,
March pulleys, MSD SF ignition, Taylor 8.2mm wires
Suspension: Knaffle 1.5in lift shackles, 1.25in rear wheel spacers, 31in BFG AT's
Exterior: black bowties, bug guard, vent visors
Interior: Pioneer speakers, Scanguage II
http://www.cardomain.com/ride/3013891
12-31-2006, 12:18 PM
#8
AF Regular
Join Date: Jun 2005
Posts: 132
Re: Dual Exhaust
such as a supercharger or or turbo. how bout ram air?
__________________
you may have a faster car.....but i can still drive over yours
12-31-2006, 01:38 PM
#9
GM S-Series Mod
AF Moderator
Join Date: Aug 2005
Posts: 2,582
Re: Dual Exhaust
Quote:
Originally Posted by agcneo
such as a supercharger or or turbo. how bout ram air?
forced induction is a supercharger or turbo, not ram air (doesn't create boost).
__________________
2000 Chevy Blazer ZR2
Performance: AEM intake, TB mod, CRMB custom y-pipe w/precat deleted, 3in catco cat, 2.5in exhaust w/ Flowmaster 40 DF,
March pulleys, MSD SF ignition, Taylor 8.2mm wires
Suspension: Knaffle 1.5in lift shackles, 1.25in rear wheel spacers, 31in BFG AT's
Exterior: black bowties, bug guard, vent visors
Interior: Pioneer speakers, Scanguage II
http://www.cardomain.com/ride/3013891
01-01-2007, 04:22 PM
#10
AF Regular
Join Date: Jun 2005
Posts: 132
Re: Dual Exhaust
gotcha, well i guess i wont be needing the dual anytime soon then, but just out of curiosity, anyone know a good supercharger for the 4.3 vortec? been interested in one for a while now
__________________
you may have a faster car.....but i can still drive over yours
01-02-2007, 12:18 AM
#11
GM S-Series Mod
AF Moderator
Join Date: Aug 2005
Posts: 2,582
Re: Dual Exhaust
Quote:
Originally Posted by agcneo
gotcha, well i guess i wont be needing the dual anytime soon then, but just out of curiosity, anyone know a good supercharger for the 4.3 vortec? been interested in one for a while now
vortech and powerdyne (i think thats it) make kits for the 96+ 4.3. if you have any specific questions about a supercharger on a 4.3, ask blazerSS (he has the vortech kit but he also built the engine first).
__________________
2000 Chevy Blazer ZR2
Performance: AEM intake, TB mod, CRMB custom y-pipe w/precat deleted, 3in catco cat, 2.5in exhaust w/ Flowmaster 40 DF,
March pulleys, MSD SF ignition, Taylor 8.2mm wires
Suspension: Knaffle 1.5in lift shackles, 1.25in rear wheel spacers, 31in BFG AT's
Exterior: black bowties, bug guard, vent visors
Interior: Pioneer speakers, Scanguage II
http://www.cardomain.com/ride/3013891
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