borla exhaust
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Junior Member
Joined: May 2010
Posts: 19
Likes: 0
From: Watsonville California
Car: 1991 z28
Engine: lt1 swap in process
Axle/Gears: posi 3.23
borla exhaust
my buddy had a borla exhaust on his truck and it sounded great. ive looked them up for my 91 camaro on a few websites and they run for about six to seven hundred. im just curious if anybody has them installed and if so is it worth the extra bucks what do you guys think
Senior Member

Joined: Mar 2007
Posts: 574
Likes: 2
From: Muscatine IA
Car: 91 Firebird Formula
Engine: 383
Transmission: built 700r4
Axle/Gears: 4.11, 9inch
Re: borla exhaust
i dont really care for the cat back. everybody runs the open element for the loud so lets think bout this 700 dollar straight pipe. id save the money and just put one of their mufflers on not the whole kit.
but thats just my 2cents
but thats just my 2cents
Member
Joined: Feb 2009
Posts: 169
Likes: 0
From: NY
Car: Trans Am, Corvette
Engine: LB9, LT1
Transmission: 700R4, 4L60
Axle/Gears: 373, 259
Re: borla exhaust
YES, It is worth it.
But instead of comparing new opinions in this thread. You should just search here. Borla has been talked about ALOT on here. All you thoughts and questions will then be answered. AYou will also find alot of sound clips here and on You Tube.
Borla FTW.
But instead of comparing new opinions in this thread. You should just search here. Borla has been talked about ALOT on here. All you thoughts and questions will then be answered. AYou will also find alot of sound clips here and on You Tube.
Borla FTW.
Joined: Oct 2006
Posts: 3,041
Likes: 8
From: West of Toronto
Car: 89 IROC
Engine: 305 TPI / ZZ4 cam
Transmission: Stage 2 700R4, LS1 driveshaft
Axle/Gears: Strange 3.42 w/ Auburn
Re: borla exhaust
^^Agreed
check the sticky's at the top of this section.
check the sticky's at the top of this section.
Joined: Oct 2008
Posts: 437
Likes: 0
From: Bucks County, PA
Car: 1991 RS
Engine: 383 stroker
Transmission: 700R4
Axle/Gears: 3.23 posi
Re: borla exhaust
I lucked into a slightly used catback setup for $50 and I love it.....granted it doesn't sound as good as it should because of my tbi and stock headers/y pipe, but it's stainless and sounds awesome.
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Member
Joined: Dec 2009
Posts: 338
Likes: 0
From: Granite Falls, NC
Car: 1992 Camaro RS
Engine: 305 TBI
Transmission: T5
Re: borla exhaust
I have them installed and love them. They will be loud at WOT but not so loud your ears start to ring. Under normal driving you can hold a conversation with your passengers. Next year when I redo my car the exhaust will stay in the car. I have a stock 305 I can't wait for the sound of that 383.
Re: borla exhaust
im about to put a borla muffler on my 1986, found them for sale on ebay 3.0 inch in duel 2.5 out for around 210$ to 285$ completely and totally a sound that cant be matched 2.5 inch in to duel 2.5 inch out is 119$
Member
Joined: Dec 2009
Posts: 338
Likes: 0
From: Granite Falls, NC
Car: 1992 Camaro RS
Engine: 305 TBI
Transmission: T5
Re: borla exhaust
The reason the cat back costs so much is the quality of the pipe and muffler. It's made of 304 stainless steel and will last for a very long time.
Last edited by MotorMouth; Jun 5, 2012 at 01:10 PM.
Member
Joined: Apr 2011
Posts: 166
Likes: 1
From: La Crosse WI
Car: '91 Firebird '85 Firebird
Engine: 305 TPI
Re: borla exhaust
Get a Borla XR-1.
http://www.summitracing.com/parts/BOR-40943/
Sound example.
http://www.youtube.com/watch?v=MsrUQZaghYU
http://www.summitracing.com/parts/BOR-40943/
Sound example.
http://www.youtube.com/watch?v=MsrUQZaghYU
Member
iTrader: (4)
Joined: Oct 2009
Posts: 115
Likes: 0
From: California
Car: 89 CHEVY IROC-Z28
Engine: 355 Built/High Performance
Transmission: 700R4 Swap For T56
Axle/Gears: 3.73 Posi
Re: borla exhaust
i got a borla muffler on my 89 sounds nice but for some reason i like the idle on flowmasters str8 pipe is better though had it on my 87 gta sounded nice until someone had to rearend it causing it a total loss/salvage title. Any of you guys know the donut gasket size for edelbrock headers y pipe to the header itself? need help thanks
Member
iTrader: (4)
Joined: Oct 2009
Posts: 115
Likes: 0
From: California
Car: 89 CHEVY IROC-Z28
Engine: 355 Built/High Performance
Transmission: 700R4 Swap For T56
Axle/Gears: 3.73 Posi
Re: borla exhaust
i am going for http://www.ebay.com/itm/Borla-Muffle...62432d&vxp=mtr
Last edited by thetrucker21; May 10, 2012 at 03:40 PM.
Senior Member

Joined: May 2011
Posts: 855
Likes: 1
From: New Bedford MA
Car: 1988 Gta trans am
Engine: LR4 4.8
Transmission: 98-02 t56 6 speed
Axle/Gears: Bw 9 bolt (3.70’s) pbr rotors
Re: borla exhaust
i got a borla muffler on my 89 sounds nice but for some reason i like the idle on flowmasters str8 pipe is better though had it on my 87 gta sounded nice until someone had to rearend it causing it a total loss/salvage title. Any of you guys know the donut gasket size for edelbrock headers y pipe to the header itself? need help thanks
Junior Member
Joined: Jan 2012
Posts: 20
Likes: 0
From: Dayton wy
Car: 86 trans am
Engine: 350
Transmission: 700 r4
Axle/Gears: 3.42 posi 10 bolt
Re: borla exhaust
I have a borola exhaust on my 86 .I like the sound of it but dont like that the exhaust only exits on the drivers side the pass side is only a dummy.
Joined: Dec 2005
Posts: 6,499
Likes: 31
From: Macon, GA
Car: 1992 Camaro RS
Engine: Vortec headed 355, xe262
Transmission: T56
Axle/Gears: 9-bolt 3.70
Re: borla exhaust
If you're just gonna buy a muffler... compare the Borla XR1 to the dynatech split flow. It's what I run.
Borla XR1:

Dynatech Splitflow:

Very similar, and the dynatech is a little cheaper. Sounds like the devil being unleashed at WOT, but it is pretty loud, and I imagine the XR1 to be about the same.
http://www.youtube.com/watch?v=NZl1_P1VqOo
Borla XR1:

Dynatech Splitflow:

Very similar, and the dynatech is a little cheaper. Sounds like the devil being unleashed at WOT, but it is pretty loud, and I imagine the XR1 to be about the same.
http://www.youtube.com/watch?v=NZl1_P1VqOo
Supreme Member
iTrader: (2)
Joined: Sep 2009
Posts: 1,591
Likes: 5
From: WI.
Car: 1987 iroc
Engine: 383 TPIS intake, Dyno Don headers
Transmission: 700R4 w/Pro-built Auto/transgo 2-3
Axle/Gears: 3.27/3.70 borg warner 9 bolt
Re: borla exhaust
Just another thing to consider; I have the BORLA with the electric cutout, you can go from mild to wild with a switch.
Re: borla exhaust
i replaced the 2.5 inch pipe that comes off the cat with a 3.0. it allows you to put the transverse flow muffler that is listed under the fourth gen camaro in borlas website, Borla 40477 Universal Transverse Flow Muffler
Member
Joined: Dec 2009
Posts: 338
Likes: 0
From: Granite Falls, NC
Car: 1992 Camaro RS
Engine: 305 TBI
Transmission: T5
Re: borla exhaust
It's only a dummy if you have the closed plate added. Mine is open at idle some exhaust comes out the right side. As soon as I open the throttle the muffler builds back pressure then the excess comes out the right side. That's by design. That's why at idle it's a nice rumble at WOT it's loader.
Member

Joined: Apr 2005
Posts: 247
Likes: 0
From: Rochester, NY
Car: 1991 Z28
Engine: 383 TPI
Transmission: 700R4 w/2800 stall
Axle/Gears: 3.23
Re: borla exhaust
I put the Borla cat back on my stock setup with a 305 TPI, and put in one of the mid sized cutout plates, I was overall pretty happy with it.
Now, I have the catback on a 383TPI with 1 3/4" primary headers to 3" all the way back and I have the electronic cutout...
Definately a bit louder
the cutout makes a difference, and it is Awesome being able to change the tone at the driver seat with a switch rather than crawling under the car to change it to see what is liked better...
The only thing I didnt like on this cat-back kit is when I originally got it, I was disappointed the 3rd gen f-body kit came with the angle cut round tips, i really wanted the oval intercooled tips that came on a lot of the other Borla kits. When I orignally got the kit many years ago, Borla said I could mail back the round angle tips and for additional $$, they would replace the tips with which ever Borla tips I wanted. I never did this as I was tight on the loot, but I wish I did. Heck, never know, maybe they'll still change them over for me...
I do not regret getting the Borla kit at all, it's stainless, it's dynamic (with the split before the muffler), it sounds and looks great (in my opinion). What more does anyone want in a catback system??
Now, I have the catback on a 383TPI with 1 3/4" primary headers to 3" all the way back and I have the electronic cutout...
Definately a bit louder
the cutout makes a difference, and it is Awesome being able to change the tone at the driver seat with a switch rather than crawling under the car to change it to see what is liked better...The only thing I didnt like on this cat-back kit is when I originally got it, I was disappointed the 3rd gen f-body kit came with the angle cut round tips, i really wanted the oval intercooled tips that came on a lot of the other Borla kits. When I orignally got the kit many years ago, Borla said I could mail back the round angle tips and for additional $$, they would replace the tips with which ever Borla tips I wanted. I never did this as I was tight on the loot, but I wish I did. Heck, never know, maybe they'll still change them over for me...
I do not regret getting the Borla kit at all, it's stainless, it's dynamic (with the split before the muffler), it sounds and looks great (in my opinion). What more does anyone want in a catback system??
Joined: May 2007
Posts: 2,340
Likes: 2
From: Montreal, Canada
Car: 1986 Chevrolet Camaro IROC-Z28
Engine: TPI 310ci (LB9)
Transmission: Custom Rebuilt 700R4 - 2600 Stall
Axle/Gears: 10 bolt, 3.73 Eaton Limited-Slip
Re: borla exhaust
Borla is expensive! But I agree, the electronic cutout must be handy.. when parking at home or driving late at night or just want a relaxing cruise, i'd put it on the lowest setting.. But when racing or wanting to drive around open it up. Where is the switch for the exhaust? I would think a cool place would be inside the front ashtray if you never use it. Also, does Borla sell their system with the electric cutout or is it a separate purchase?
Member

Joined: Apr 2005
Posts: 247
Likes: 0
From: Rochester, NY
Car: 1991 Z28
Engine: 383 TPI
Transmission: 700R4 w/2800 stall
Axle/Gears: 3.23
Re: borla exhaust
hellz_wings, Borla to my knowledge does not sell the electric cutouts, I got mine through QTP:
http://shop.quicktimeperformance.com...ct_detail&p=29
I also just saw they have a wireless control for these now...
I am doing just what you mentioned, I am modifying my ash tray to fit the switch. I got a clean ash tray from a yard and started cutting it up to put a switch plate in it, kind of recessed so I would be able to still shut the lid.
It is not cheap when you look at the exhaust system and cutout compared to other systems... The system is stainless, so it should outlast my car, and it does provide the unique dynamics with the cutout, plus I just always loved the sounds of other Borla systems. That was enough for me, sure isn't the only thing on my car I've over indulged on...
http://shop.quicktimeperformance.com...ct_detail&p=29
I also just saw they have a wireless control for these now...
I am doing just what you mentioned, I am modifying my ash tray to fit the switch. I got a clean ash tray from a yard and started cutting it up to put a switch plate in it, kind of recessed so I would be able to still shut the lid.
It is not cheap when you look at the exhaust system and cutout compared to other systems... The system is stainless, so it should outlast my car, and it does provide the unique dynamics with the cutout, plus I just always loved the sounds of other Borla systems. That was enough for me, sure isn't the only thing on my car I've over indulged on...
Joined: May 2007
Posts: 2,340
Likes: 2
From: Montreal, Canada
Car: 1986 Chevrolet Camaro IROC-Z28
Engine: TPI 310ci (LB9)
Transmission: Custom Rebuilt 700R4 - 2600 Stall
Axle/Gears: 10 bolt, 3.73 Eaton Limited-Slip
Re: borla exhaust
This system looks awesome! Where is the cutout located? I'm assuming before the cat?
Member

Joined: Apr 2005
Posts: 247
Likes: 0
From: Rochester, NY
Car: 1991 Z28
Engine: 383 TPI
Transmission: 700R4 w/2800 stall
Axle/Gears: 3.23
Re: borla exhaust
cutout is after the cat, it is a cat-back system 
You basically have the 3" from the cat and it Y's just BEFORE the muffler on the driverside of the car after the read axle. One side of the Y has a 3-bolt flange where Borla provides adapter plates with different opening sizes (or you can put the electric cutout in), this side goes straight out the passenger side exhaust tips (no muffler). the other branch of the Y crosses over to the driver side going through the Borla muffler which maintains just about 3" right through and then exits the driver side tips.
This should make more sense if you check out the photos on Borla's web site.

You basically have the 3" from the cat and it Y's just BEFORE the muffler on the driverside of the car after the read axle. One side of the Y has a 3-bolt flange where Borla provides adapter plates with different opening sizes (or you can put the electric cutout in), this side goes straight out the passenger side exhaust tips (no muffler). the other branch of the Y crosses over to the driver side going through the Borla muffler which maintains just about 3" right through and then exits the driver side tips.
This should make more sense if you check out the photos on Borla's web site.
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