Generation III External Engine LS1 | LS6 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:

Thoughts on new exhaust setup?

Thread Tools
 
Search this Thread
 
Old Feb 23, 2016 | 01:27 PM
  #1  
z28SSilvest's Avatar
Thread Starter
11 Second Club
 
Joined: Aug 2012
Posts: 730
Likes: 0
From: Middletown, DE
Arrow Thoughts on new exhaust setup?

Kooks longtube headers >> Kooks ORY >> Powerstick in i pipe >> (Originally borla catback muffler replaced w/ dynomax, so one side is straight piped and the other has the dynomax)

I know I shouldn't be revving it when the engine was cold (why the revvs kinda sound like ****)

Feedback/Suggestions appreciated!

Reply
Old Feb 23, 2016 | 01:47 PM
  #2  
HCI2000SS's Avatar
TECH Senior Member
iTrader: (2)
 
Joined: Aug 2012
Posts: 11,137
Likes: 20
From: Howell & Fenton MI
Default

Sounds great at idle! Is it raspy at all though?
Reply
Old Feb 23, 2016 | 02:03 PM
  #3  
z28SSilvest's Avatar
Thread Starter
11 Second Club
 
Joined: Aug 2012
Posts: 730
Likes: 0
From: Middletown, DE
Default

Thanks man! It actually used to be right around 2500rpms but the powerstick took about 85% of the rasp out. I'm going to get a video cruising around in it shortly this week.
Reply
Old Feb 23, 2016 | 02:06 PM
  #4  
HCI2000SS's Avatar
TECH Senior Member
iTrader: (2)
 
Joined: Aug 2012
Posts: 11,137
Likes: 20
From: Howell & Fenton MI
Default

Cool! If it doesn't rasp but is still loud like it is then that's perfect
Reply
Old Feb 23, 2016 | 02:06 PM
  #5  
z28SSilvest's Avatar
Thread Starter
11 Second Club
 
Joined: Aug 2012
Posts: 730
Likes: 0
From: Middletown, DE
Default

This is how it used to sound with just the dynomax: (it had a lot of drone when cruising + had a cutout which I removed with the powerstick)

Reply
Old Feb 23, 2016 | 02:26 PM
  #6  
HCI2000SS's Avatar
TECH Senior Member
iTrader: (2)
 
Joined: Aug 2012
Posts: 11,137
Likes: 20
From: Howell & Fenton MI
Default

Originally Posted by z28SSilvest
This is how it used to sound with just the dynomax: (it had a lot of drone when cruising + had a cutout which I removed with the powerstick)

GoPro - LS3 z28 Camaro Pulls Exhaust Sound - YouTube
Kinda hard to tell in the video, but it sounds great at WOT. So the new setup has the power stick in the I-pipe, then the Dynomax is in the rear, like in the cross section where the stock muffler usually is?
Reply
Old Feb 23, 2016 | 02:43 PM
  #7  
z28SSilvest's Avatar
Thread Starter
11 Second Club
 
Joined: Aug 2012
Posts: 730
Likes: 0
From: Middletown, DE
Default

Thanks! You got it. When I bought the car it had a Borla 3" adjustable catback system on it, so the dynomax just replaced the muffler. It's 3" all the way back from the collectors.
Reply
Old Feb 23, 2016 | 02:52 PM
  #8  
HCI2000SS's Avatar
TECH Senior Member
iTrader: (2)
 
Joined: Aug 2012
Posts: 11,137
Likes: 20
From: Howell & Fenton MI
Default

Very nice! I like that. How do you like compared to the old setup with the cutout open?
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

 Brett Foote
story-1

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-2

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-3

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-4

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-5

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-6

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-7

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-8

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-9

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
Old Feb 23, 2016 | 03:22 PM
  #9  
z28SSilvest's Avatar
Thread Starter
11 Second Club
 
Joined: Aug 2012
Posts: 730
Likes: 0
From: Middletown, DE
Default

I had the DMH cutout in the i pipe and while it was loud as hell, there wasn't any tone to the car. Plus I'm pretty sure I had lost some hearing.

I see you still have the 10 bolt in your setup. When is the upgrade coming?!
Reply
Old Feb 23, 2016 | 03:57 PM
  #10  
HCI2000SS's Avatar
TECH Senior Member
iTrader: (2)
 
Joined: Aug 2012
Posts: 11,137
Likes: 20
From: Howell & Fenton MI
Default

Oh wow...Yeah that's loud then lol. To be honest, unless I run into some extra money, I'll just replace the 10 bolt when it breaks. I'm really surprised it has lasted this long with my mods, but it makes me really curious to see just how far I can push it now lol. When did you change yours?
Reply
Old Feb 23, 2016 | 04:31 PM
  #11  
z28SSilvest's Avatar
Thread Starter
11 Second Club
 
Joined: Aug 2012
Posts: 730
Likes: 0
From: Middletown, DE
Default

There's some guy on Instagram named Dylanhiggs77 and I see him breaking those 10 bolts all the time and replacing them. (They are cheap as hell too compared to upgrading). I'm sure you can get it low 11's or even 10's but they are ticking time bombs.

I upgraded mine as soon as the 10 bolt broke doing a pull on a local highway. Called Moser the next week and pulled the credit card out lol.
Reply
Old Feb 23, 2016 | 04:35 PM
  #12  
HCI2000SS's Avatar
TECH Senior Member
iTrader: (2)
 
Joined: Aug 2012
Posts: 11,137
Likes: 20
From: Howell & Fenton MI
Default

Did you have to Truetrac on the 10 bolt when it gave way?
Reply
Old Feb 23, 2016 | 04:43 PM
  #13  
z28SSilvest's Avatar
Thread Starter
11 Second Club
 
Joined: Aug 2012
Posts: 730
Likes: 0
From: Middletown, DE
Default

Nope. The 10 bolt was completely stock handling 490hp to the wheels. I picked the Truetrac from Moser when I ordered the rear. Was going to go with a spool but I heard those are hell on the street.
Reply
Old Feb 23, 2016 | 04:45 PM
  #14  
HCI2000SS's Avatar
TECH Senior Member
iTrader: (2)
 
Joined: Aug 2012
Posts: 11,137
Likes: 20
From: Howell & Fenton MI
Default

Maybe the Truetrac is what's saving me right now lol.
Reply
Old Feb 23, 2016 | 04:48 PM
  #15  
z28SSilvest's Avatar
Thread Starter
11 Second Club
 
Joined: Aug 2012
Posts: 730
Likes: 0
From: Middletown, DE
Default

I didn't notice you had that in your setup. I actually wrecked the carrier and spider gears on mine.. if you aren't noticing any whining now they I'd say you're good.. for now
Reply
Old Feb 23, 2016 | 04:54 PM
  #16  
HCI2000SS's Avatar
TECH Senior Member
iTrader: (2)
 
Joined: Aug 2012
Posts: 11,137
Likes: 20
From: Howell & Fenton MI
Default

No whining as of yet. I never launch hard and get out of it if I feel wheel hop. Also only spray from 2ND gear on up. The spider gears were upgraded by the previous owner as well. I know it's all on borrowed time though.

Btw did you recently add some hp? Maybe I forgot or something but I don't remember you making 490 rwhp. Stock LS3 heads?
Reply
Old Feb 23, 2016 | 05:11 PM
  #17  
z28SSilvest's Avatar
Thread Starter
11 Second Club
 
Joined: Aug 2012
Posts: 730
Likes: 0
From: Middletown, DE
Default

That's good then. You're spraying a wet kit right? Did you do anything to the fuel system? I've been looking at some kits.

I had it on a dyno a couple of weeks ago just to see if the weather makes a difference and it put out 490 to the wheels. Must have liked the colder temperatures because last time it put out 481 in 93 degree weather compared to the 35 degree weather we have in Delaware now.

Yup, stock LS3 heads.
Reply
Old Feb 23, 2016 | 05:16 PM
  #18  
HCI2000SS's Avatar
TECH Senior Member
iTrader: (2)
 
Joined: Aug 2012
Posts: 11,137
Likes: 20
From: Howell & Fenton MI
Default

Gotcha. Great number for a cam only setup. Yeah I run a single nozzle wet kit from NX. The only thing I upgraded was the fuel pump. Went with a Racetronix 255 pump and hot wire kit. It's a plug and play system, and all I did was the trap door method for the install and dropped it in. Pretty easy job
Reply
Old Feb 23, 2016 | 05:29 PM
  #19  
z28SSilvest's Avatar
Thread Starter
11 Second Club
 
Joined: Aug 2012
Posts: 730
Likes: 0
From: Middletown, DE
Default

That's all?! I really want to run a 75 or even 100 shot on my car but keep reading about doing a standalone system and upgrading the fuel system, etc. What did you end up paying for the whole kit (if you dont mind sharing)
Reply
Old Feb 23, 2016 | 05:49 PM
  #20  
HCI2000SS's Avatar
TECH Senior Member
iTrader: (2)
 
Joined: Aug 2012
Posts: 11,137
Likes: 20
From: Howell & Fenton MI
Default

Well I already have 42lb injectors, but yeah that's all that's upgraded as far as the fuel system goes. There's no reason to go to a standalone setup with a small shot like that. My kit came with the car when I bought it, but this particular kit goes for around $550 new, and I probably have another $500 or so into it with accessories and whatnot. If I were you I'd so at least a 100 shot. What fuel pump do you have now? You'll need the right plugs and a way of pulling timing to
Reply



All times are GMT -5. The time now is 09:06 AM.

story-0
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-09 14:55:56


VIEW MORE
story-1
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-2
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-3
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-4
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-5
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-6
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-7
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-8
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-9
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE