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Posted: 2/17/2017 10:34:18 PM EDT
A lot of people have been waiting for these. Personally I'm going to get the dumped version but this over the axle setup looks killer for the money.
https://www.speed-engineering.com/shop-by-vehicle/1998-02-camaro-firebird/exhaust/true-dual-exhaust-kits/ls1-camaro-firebird-true-dual-exhaust-rear-exit.html  Attached File |
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Posted: 2/18/2017 7:14:26 AM EDT
[#1]
God I love having a fourth gen. I just put TSP's catback with the magnaflow clone muffler and the integrated cutout in the I-pipe. It's a true bipolar exhaust. I was tempted to get this and already have a PHB relocate but I didn't want to deal with any headaches after the Y-pipe on my dumped LM1 setup split at the merge. China welds!
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Posted: 2/18/2017 12:55:34 PM EDT
[#2]
Quote HistoryQuoted:
God I love having a fourth gen. I just put TSP's catback with the magnaflow clone muffler and the integrated cutout in the I-pipe. It's a true bipolar exhaust. I was tempted to get this and already have a PHB relocate but I didn't want to deal with any headaches after the Y-pipe on my dumped LM1 setup split at the merge. China welds! I was trying to sell mine earlier this year but I think I'm going to hang on to it. I'm going to order the stainless longtubes and the true dual dumps and make it retardedly loud because, why not. It's not a daily driver anymore. 
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Posted: 2/18/2017 5:42:04 PM EDT
[#3]
This setup has been done at least 2-3 times over the last 20-25 years and EVERY TIME is it out performed by the SLP TOTL (two on the left). There are countless tests in GMHTP to prove it. You don't gain anything by running 2 2" pipes over having 1 3" main pipe going into a straight through design muffler. Its much more cost effective to weld in a cut out at the base of the y-pipe. The only other cat back to be considered is the chambered setup from GMMG "Stainless Worx" that you can still buy through Vengance Racing.
SLP TOTL 
GMMG 
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Posted: 2/18/2017 6:06:24 PM EDT
[#4]
Quote HistoryQuoted:
This setup has been done at least 2-3 times over the last 20-25 years and EVERY TIME is it out performed by the SLP TOTL (two on the left). There are countless tests in GMHTP to prove it. You don't gain anything by running 2 2" pipes over having 1 3" main pipe going into a straight through design muffler. Its much more cost effective to weld in a cut out at the base of the y-pipe. The only other cat back to be considered is the chambered setup from GMMG "Stainless Worx" that you can still buy through Vengance Racing. SLP TOTL http://image.gmhightechperformance.com/f/9722230/0803gmhtp_06_z+2001_camaro_ss_exhaust.jpg GMMG https://i.ytimg.com/vi/4q4BKaZKJ9w/maxresdefault.jpg GMMG is nice but $700 for a cat back? No thanks. SLP TOTL is too quiet and they don't even make it anymore. I don't want a y-pipe setup and the true duals I posted is 3" pipe. We all like what we like, I want to go with a true dual this time around. |
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Posted: 2/18/2017 6:27:31 PM EDT
[#5]
What is the pipe diameter? I have a fourth gen drivetrain in my third gen. I'm using the Holly kit and it's 2.5 inch dual exhaust.
Our cars are crazy similar other than the front suspension. I'm even running fourth gen 12" brakes front and rear. |
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Posted: 2/18/2017 6:28:23 PM EDT
[#6]
Quote HistoryQuoted:
What is the pipe diameter? I have a fourth gen drivetrain in my third gen. I'm using the Holly kit and it's 2.5 inch dual exhaust. Our cars are crazy similar other than the front suspension. I'm even running fourth gen 12" brakes front and rear. It's 3" pipe.  Any pics of your 3rd gen?
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Posted: 2/18/2017 6:38:18 PM EDT
[#7]
The paint sucks, it's probably next since I've done interior and everything under the car.
Eta pics didn't upload, one second  Attached FileQuick performance 9"  Attached FileAfter new shocks/struts and cutting the coils.  Attached FileCammed engine swap, made 403.89 whp through a T56. Your turn
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Posted: 2/18/2017 7:27:04 PM EDT
[#8]
Quote HistoryQuoted:
GMMG is nice but $700 for a cat back? No thanks. SLP TOTL is too quiet and they don't even make it anymore. I don't want a y-pipe setup and the true duals I posted is 3" pipe. We all like what we like, I want to go with a true dual this time around. TOTL too quiet have you heard one at full throttle? LT1 sounds way better with it of course but it's the best performing exhaust hence why it's so sought after. GMMG performs very well also because its a chambered setup vs everyone else which is a cross flow "turbulent" design. Before you go and spend $500 for a that setup, you should just get a SLP LM2 as thats gonna perform exactly the same. These cars gain nothing with a "true dual" setup as the pipes snake around like a pick up truck. more bends = more restrictions = less flow. 1. get a cut out to race 2. get a quality 3" main pipe with hi-flow muffler and you'll be all set. ANything else and you're wasting money, been heaviliy involved in these cars since 1995 and seen first hand every mod like this and how it performed at the track. |
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Posted: 2/18/2017 7:41:19 PM EDT
[#9]
Quote HistoryQuoted:
What is the pipe diameter? I have a fourth gen drivetrain in my third gen. I'm using the Holly kit and it's 2.5 inch dual exhaust. Our cars are crazy similar other than the front suspension. I'm even running fourth gen 12" brakes front and rear. I swapped it out with hedmann shorty headers and a flow master american thunder 3" cat back (cat is long gone). |
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Posted: 2/18/2017 8:07:30 PM EDT
[#10]
Quote HistoryQuoted:
TOTL too quiet have you heard one at full throttle? LT1 sounds way better with it of course but it's the best performing exhaust hence why it's so sought after. GMMG performs very well also because its a chambered setup vs everyone else which is a cross flow "turbulent" design. Before you go and spend $500 for a that setup, you should just get a SLP LM2 as thats gonna perform exactly the same. These cars gain nothing with a "true dual" setup as the pipes snake around like a pick up truck. more bends = more restrictions = less flow. 1. get a cut out to race 2. get a quality 3" main pipe with hi-flow muffler and you'll be all set. ANything else and you're wasting money, been heaviliy involved in these cars since 1995 and seen first hand every mod like this and how it performed at the track. I already have a LM2 installed and it's too quiet. Besides, I'm getting the dumped before the axle version, not the full setup so it's not restrictive at all. |
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Posted: 2/18/2017 8:10:00 PM EDT
[#11]
Quote HistoryQuoted:
The paint sucks, it's probably next since I've done interior and everything under the car. Eta pics didn't upload, one secondhttps://www.AR15.Com/media/mediaFiles/346921/rps20170218-163853-149225.JPG Quick performance 9" https://www.AR15.Com/media/mediaFiles/346921/rps20170218-164013-149231.JPG After new shocks/struts and cutting the coils. https://www.AR15.Com/media/mediaFiles/346921/rps20170123-204629-149232.JPG Cammed engine swap, made 403.89 whp through a T56. Your turn I like it! Here's one of mine, it's nothing special but it's paid for. 
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Posted: 2/18/2017 11:13:14 PM EDT
[#12]
Quote HistoryQuoted:
I like it! Here's one of mine, it's nothing special but it's paid for.
http://i.imgur.com/jPyNAokl.jpg?1 
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Posted: 2/19/2017 12:56:11 AM EDT
[#13]
Spaceboy tell me bout dem wheels? 17 IROCs or 18s? that a real IROC? As fast as the 4th gens are they never could hold a candle to the IROC or 91-92 Z28 in the looks department. One of my next builds will be an LS7 powered 87 IROC that looks and sounds totallly stock. You think a few 5th and 6th gen owners might get mad? lol
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Posted: 2/19/2017 1:57:11 AM EDT
[#14]
Quote HistoryQuoted:
Spaceboy tell me bout dem wheels? 17 IROCs or 18s? that a real IROC? As fast as the 4th gens are they never could hold a candle to the IROC or 91-92 Z28 in the looks department. One of my next builds will be an LS7 powered 87 IROC that looks and sounds totallly stock. You think a few 5th and 6th gen owners might get mad? lol Who cares if they get mad LOL, it's like caring if libtards are mad because Trump won. |
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Posted: 2/19/2017 1:58:09 AM EDT
[#15]
Quote HistoryQuoted:
Spaceboy tell me bout dem wheels? 17 IROCs or 18s? that a real IROC? As fast as the 4th gens are they never could hold a candle to the IROC or 91-92 Z28 in the looks department. One of my next builds will be an LS7 powered 87 IROC that looks and sounds totallly stock. You think a few 5th and 6th gen owners might get mad? lol I only built this car because I had a deal for a 98 Z28 fall through when the guy backed out of selling it the morning I was to pick it up. So I was pissed off and ordered a drop out online from a 02 Z28 and built it for my car. I kind of got carried away.
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Posted: 2/19/2017 3:22:50 AM EDT
[#16]
Quote HistoryQuoted:
GMMG is nice but $700 for a cat back? No thanks. SLP TOTL is too quiet and they don't even make it anymore. I don't want a y-pipe setup and the true duals I posted is 3" pipe. We all like what we like, I want to go with a true dual this time around. Uhhhh the SE system is a clone of a $2000 Kooks exhaust that has a 10-20hp improvement over a similar ORY/catback on stock LS1's. Even more on bigger cubic inch/aggressive motors. I don't know what that guy was on even though I love both the 2OTL and GMMG. |
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Posted: 2/19/2017 3:38:32 AM EDT
[#17]
Quote HistoryQuoted:
I like it! Here's one of mine, it's nothing special but it's paid for.
http://i.imgur.com/jPyNAokl.jpg?1 That is a sharp 4th gen! I sold my 30th Ann last year and I intend to someday replace it with a 35th ss slp. |
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Posted: 2/20/2017 3:18:50 PM EDT
[#18]
gonna pick up the SE long tubes and true dual dumps for my 6.0 truck. Should make for a good time
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Posted: 2/21/2017 10:45:23 PM EDT
[#19]
Quote HistoryQuoted:
gonna pick up the SE long tubes and true dual dumps for my 6.0 truck. Should make for a good time Yeah that's my plan too. Gonna make it seem like a totally different car. |
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Posted: 2/22/2017 11:15:36 PM EDT
[#20]
I have this system installed on my car with Pacesetter 1 3/4" LTs and a cam.
Pros: - Sounds waaaay better than my previous setup: 3"/3.5" Flowmaster Y pipe, 3.5" Mufflex catback w/ a Spintech muffler - Seems to have picked up some power from a SOTP feel - Can't beat it for $500 Cons: - The post X pipe tubes sit lower than my old catback 
- The clamps included with the kit are terrible - I recommend buying Accuseal clamps or replacing the hardware with grade 8 - The fit isn't perfect and needs a lot of fussing and adjusting to keep the tubes from contacting the PHB relocation bar, frame, and bumper - Did I mention the clamps suck? You can save some money by getting the founders PHB relocation kit. It's about half the price of the BMR kit. Also, you will have to grind the nuts that attach the rear hangars. |
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Posted: 2/23/2017 10:55:42 AM EDT
[#21]
Quote HistoryQuoted:
I have this system installed on my car with Pacesetter 1 3/4" LTs and a cam. Pros: - Sounds waaaay better than my previous setup: 3"/3.5" Flowmaster Y pipe, 3.5" Mufflex catback w/ a Spintech muffler - Seems to have picked up some power from a SOTP feel - Can't beat it for $500 Cons: - The post X pipe tubes sit lower than my old catback
- The clamps included with the kit are terrible - I recommend buying Accuseal clamps or replacing the hardware with grade 8 - The fit isn't perfect and needs a lot of fussing and adjusting to keep the tubes from contacting the PHB relocation bar, frame, and bumper - Did I mention the clamps suck? You can save some money by getting the founders PHB relocation kit. It's about half the price of the BMR kit. Also, you will have to grind the nuts that attach the rear hangars. That's a lot of hassle for negligible gain over a quality 3" hi flo cat back (SLP TOTL or Dual dual, GMMG, Borla, B&B Tri-flow, Corsa). Get one of the kits I listed and throw away those flow-crapsters and other low end noise makers and get a real high quality cat back that was designed for these cars at their peak in the market. |
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Posted: 2/23/2017 8:03:12 PM EDT
[#22]
Quote HistoryQuoted:
I have this system installed on my car with Pacesetter 1 3/4" LTs and a cam. Pros: - Sounds waaaay better than my previous setup: 3"/3.5" Flowmaster Y pipe, 3.5" Mufflex catback w/ a Spintech muffler - Seems to have picked up some power from a SOTP feel - Can't beat it for $500 Cons: - The post X pipe tubes sit lower than my old catback
- The clamps included with the kit are terrible - I recommend buying Accuseal clamps or replacing the hardware with grade 8 - The fit isn't perfect and needs a lot of fussing and adjusting to keep the tubes from contacting the PHB relocation bar, frame, and bumper - Did I mention the clamps suck? You can save some money by getting the founders PHB relocation kit. It's about half the price of the BMR kit. Also, you will have to grind the nuts that attach the rear hangars. I always used this type of clamp: 
Founders makes good stuff, I have a few of their things on my Z/28. Thanks for your review! I'm going for the dumps but good stuff to know for those that are looking at the complete kit. |
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Posted: 2/23/2017 8:09:33 PM EDT
[#23]
Quote HistoryQuoted:
That's a lot of hassle for negligible gain over a quality 3" hi flo cat back (SLP TOTL or Dual dual, GMMG, Borla, B&B Tri-flow, Corsa). Get one of the kits I listed and throw away those flow-crapsters and other low end noise makers and get a real high quality cat back that was designed for these cars at their peak in the market. You're back! When I put on my 3" dumped setup, I'm going to sell my SLP LM2 catback with glee. It's a turd of an exhaust. |
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Posted: 2/24/2017 7:25:44 PM EDT
[#24]
Quote HistoryQuoted:
I always used this type of clamp: http://www.jegs.com/images/photos/200/289/289-33226.jpg Founders makes good stuff, I have a few of their things on my Z/28. Thanks for your review! I'm going for the dumps but good stuff to know for those that are looking at the complete kit. Those stainless band clamps are fantastic and what I replaced most of the kit clamps with. The compression (Accuseal) clamps had to be used at the muffler to tip connections. If you order the dumped kit, you will be dealing with the same clamps. Plan accordingly. |
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Posted: 2/24/2017 8:28:09 PM EDT
[#25]
Quote HistoryQuoted:
Those stainless band clamps are fantastic and what I replaced most of the kit clamps with. The compression (Accuseal) clamps had to be used at the muffler to tip connections. If you order the dumped kit, you will be dealing with the same clamps. Plan accordingly. Thanks. People on ls1tech gave the heads up about the clamps being shit unless you change out the hardware but I'll just go with the stainless band clamps. Never had an issue with those. |
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Posted: 2/24/2017 10:38:00 PM EDT
[#26]
Those clamps are what my hooker blackheart exhaust came with.
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Posted: 2/26/2017 12:20:44 AM EDT
[#27]
Quote HistoryQuoted:
You're back! When I put on my 3" dumped setup, I'm going to sell my SLP LM2 catback with glee. It's a turd of an exhaust. As you should as the SLP LM1 and LM2 is a glass pack droning POS that was a joke from the day it came out. Everyone who ran that shit box lost power on the dyno when they took off the SLP optional TOTL or dual dual off their LT1 or LS1 SS. The only thing the LM system was good for was being ignorantly loud which it excelled at (and droned). Get a good stainless catback with a straight through style muffler (no cross flow) and you'll be just fine. |
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