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

What mufflers to quiet down TSP duals?

Thread Tools
 
Search this Thread
 
Old Jul 8, 2007 | 11:50 AM
  #1  
ss2000's Avatar
Thread Starter
11 Second Club
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (45)
 
Joined: Jan 2003
Posts: 336
Likes: 0
From: penna.
Default What mufflers to quiet down TSP duals?

I have tsp 3" duals, no cats, 11.5 compression and the ms4 cam. It sounds great but is just too loud. I was thinking about flowmaster 50 series. Any other suggestions on quieter mufflers that wont rob a lot of power? Thanks.

Last edited by ss2000; Jul 8, 2007 at 11:58 AM.
Reply
Old Jul 8, 2007 | 03:36 PM
  #2  
68birdls1's Avatar
11 Second Club
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (46)
 
Joined: Feb 2004
Posts: 1,667
Likes: 0
From: jacksonville, fl
Default

bud, no matter what, that sucker is going to be loud. Look at the specs of the engine, that thing is gonna thump
Reply
Old Jul 8, 2007 | 06:23 PM
  #3  
Soccerbum21's Avatar
11 Second Club
 
Joined: Nov 2005
Posts: 100
Likes: 0
From: Statesboro/McDonough GA
Default

i got moroso spiral flows on my true duals, it really knocked some noise off of just the header/cats combo i was running til i got the duals installed.


they might take away some power, i know i felt a small *** dyno difference between headers/cats, and headers/cats,H pipe, and spiral flows.


if you have room to do so, add some dynomax ultra flow mufflers in there, i used one of those on my old 240sx a few years ago and it REALLY made it quieter, and didnt seem to rob any power.

good luck!
Reply
Old Jul 9, 2007 | 12:40 AM
  #4  
tylerdj's Avatar
TECH Fanatic
iTrader: (31)
 
Joined: Sep 2004
Posts: 1,912
Likes: 0
From: Amarillo, TX
Default

LINK
Reply
Old Jul 9, 2007 | 01:09 AM
  #5  
Full-Force's Avatar
TECH Junkie
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (11)
 
Joined: Aug 2004
Posts: 3,070
Likes: 5
From: Upstate of SC
Default

Of the three mufflers that TSP sells with their kits the spiral flows are the quietest.

It would not be hard at alll to angle the tsp system toward the rear seat pans and put a more traditional muffler on it. I built a system using 1 chamber flowmasters that was very liveable.
Reply
Old Jul 9, 2007 | 01:37 AM
  #6  
95 Z28's Avatar
12 Second Club
iTrader: (21)
 
Joined: Apr 2006
Posts: 1,406
Likes: 0
From: West Seneca, NY
Default

Dynomax Ultra Flows would quiet it down...I've heard an LS1 with them on it and it sounded great...not too loud. Magnaflow is what I have on my true duals and they aren't really that loud until I step on it.
Reply
Old Jul 9, 2007 | 01:40 AM
  #7  
daniel6718's Avatar
Banned
iTrader: (36)
 
Joined: Jun 2004
Posts: 3,760
Likes: 2
From: garland tx
Default

spiral flows are quiet and still perform
Reply
Old Jul 9, 2007 | 09:52 AM
  #8  
lilbuddy1587's Avatar
TECH Fanatic
iTrader: (1)
 
Joined: May 2004
Posts: 1,691
Likes: 0
From: Mesa, Arizona
Default

Borla XR-1's or Magnaflow 4X9's
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

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

 Pouria Savadkouei
story-1

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

 Verdad Gallardo
story-2

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-3

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

 Verdad Gallardo
story-4

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

 Pouria Savadkouei
story-5

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

 Verdad Gallardo
story-6

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-7

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-8

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-9

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
Old Jul 9, 2007 | 10:55 AM
  #9  
lastcall190's Avatar
TECH Addict
iTrader: (36)
 
Joined: May 2004
Posts: 2,656
Likes: 4
From: NJ
Default

Spiral flows while they are the quietest of the three that TSP offers, are by no means "quiet" in the traditional sense, only when comparing them to the others which are both very loud and essentially straight through bullets (one has dimples, wow). I know a guy on here, Blaster I think, had Edelbrock mufflers and the car was very deep and sounded IMO great. Full-Force has a good suggestion too. Never heard XR1s in person though I've seen many posts saying they are deep and not too loud but sound great.

-J
Reply
Old Jul 9, 2007 | 11:34 AM
  #10  
BlackSVT03's Avatar
Launching!
iTrader: (1)
 
Joined: Jul 2006
Posts: 213
Likes: 0
Default

I have the TSP duals with bullets and it was insanely loud, so I ran it under the axle and put a Dynomax Superturbo muffler on each side right before the tip and it definately quieted it down. Its quiet at idle (despite the heads and cam) but screams at wide open with no rasp.
Reply
Old Jul 9, 2007 | 11:45 AM
  #11  
tylerdj's Avatar
TECH Fanatic
iTrader: (31)
 
Joined: Sep 2004
Posts: 1,912
Likes: 0
From: Amarillo, TX
Default

Originally Posted by BlackSVT03
I have the TSP duals with bullets and it was insanely loud, so I ran it under the axle and put a Dynomax Superturbo muffler on each side right before the tip and it definately quieted it down. Its quiet at idle (despite the heads and cam) but screams at wide open with no rasp.
That is EXACTLY what I was planning on doing to my duals. Do you have any pics?
Reply
Old Jul 9, 2007 | 03:28 PM
  #12  
warp_6's Avatar
On The Tree
iTrader: (2)
 
Joined: Jul 2006
Posts: 146
Likes: 0
From: Moorpark,Ca
Default

After may H/C install my car sounded great but way to loud with the LM1. I put a LM2 on and it helped but still to loud. I them put a Corse cat back on, and believe it or not it was actually louder than the LM2. I then added the LM2 resonator to the intermediate pipe with the Corse cat back . That was the ticket. Great idle and cruising. If you get on it it really sound great. I just got a set of cut outs I'm going to install. The #'s in my sign are with the current exhaust. I will re dyno once I get the cut out's on.
Reply




All times are GMT -5. The time now is 09:04 AM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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
story-9
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE