Conversions & Swaps LSX Engines in Non-LSX Vehicles
Sponsored by:
Sponsored by:

exhaust choice?

Thread Tools
 
Search this Thread
 
Old May 1, 2014 | 10:48 AM
  #1  
Joe Lluvia Avila's Avatar
Thread Starter
On The Tree
 
Joined: Jan 2013
Posts: 135
Likes: 0
Default exhaust choice?

I currently have an 89 mustang w/a 5.3/4l60e swap. Seems to have too much drone at idle. i want to be able to hear that aggressive cam!

mods: 285lr hr13 comp cam (235/243 .614/.624 @113lsa 13* overlap)
PRC dual springs
7.4 chromoly pushrods
truck intake
virgin 706 heads
P&P stock TB (DBC)
2.5 H pipe with flowmaster 44s
2.73 trac-loc
4l60e w/red clutches, beast sunshell, HD2 shift kit and larger band

I was recommended a 3 inch Y pipe with a dynomax race bullet. What do you guys think? All recommendations are welcome!!

This is my current sounds clip:
Reply
Old May 1, 2014 | 12:56 PM
  #2  
autocomman's Avatar
On The Tree
 
Joined: Aug 2013
Posts: 188
Likes: 0
Default

Run the pipes out the back of the car where they belong. Problem solved
Reply
Old May 2, 2014 | 02:44 PM
  #3  
1970camaroRS's Avatar
10 Second Club
iTrader: (8)
 
Joined: Jun 2004
Posts: 1,200
Likes: 4
From: Everett, WA
Default

Keep it dual, no Y. Run a pair of the largest straight-through mufflers you can fit. Get the exhaust out from under the car, run it out the back or sides.


Also, 4-lug wheels? Still running the small rear-end?
Reply
Old May 2, 2014 | 04:12 PM
  #4  
99Bluz28's Avatar
TECH Senior Member
iTrader: (35)
 
Joined: Nov 2007
Posts: 9,705
Likes: 12
From: C. V., Kalifornia
Default

Get a couple of Dynomax Ultra Flo Welded Mufflers, and again run the exhaust out the back or sides.
Reply
Old May 3, 2014 | 10:31 AM
  #5  
jgh64pkup's Avatar
Launching!
15 Year Member
 
Joined: Aug 2009
Posts: 203
Likes: 0
Default

They made plenty of 8.8s with 4 lug axles. 5 lug didnt come until 1994.
Reply
Old May 5, 2014 | 02:34 PM
  #6  
Joe Lluvia Avila's Avatar
Thread Starter
On The Tree
 
Joined: Jan 2013
Posts: 135
Likes: 0
Default

Went with dumped straight pipe using the existing H-pipe

Reply
Old May 5, 2014 | 11:54 PM
  #7  
Jared_Williamson's Avatar
Staging Lane
iTrader: (1)
 
Joined: Apr 2012
Posts: 24
Likes: 0
Default

Looks and sounds good. Not to derail the thread, but do you recall the application the upper and lower radiator hoses came from to fit your setup? It looks like you are still running the mustang radiator. I am almost done with a very similar build.
Reply
Old May 6, 2014 | 10:38 AM
  #8  
Joe Lluvia Avila's Avatar
Thread Starter
On The Tree
 
Joined: Jan 2013
Posts: 135
Likes: 0
Default

Originally Posted by Jared_Williamson
Looks and sounds good. Not to derail the thread, but do you recall the application the upper and lower radiator hoses came from to fit your setup? It looks like you are still running the mustang radiator. I am almost done with a very similar build.
They came from a 2002 Silverado. We used the upper rad hose from the silverado and put it on the lower rad hose in the mustang. Then we used the lower rad hose from the silverado and cut it to size for the upper part of rad.

silverado upper = mustang lower
silverado lower = mustang upper

just cut to size.
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




All times are GMT -5. The time now is 09:01 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