Notices
GM Engine & Exhaust Performance EFI | GEN I/GEN II/GEN III/GEN IV Engines |Small Block | Big Block |

My exhaust and AFM experience

Thread Tools
 
Search this Thread
 
Old 04-26-2008, 11:51 AM
  #1  
TECH Resident
Thread Starter
iTrader: (6)
 
A-Dub's Avatar
 
Join Date: Nov 2004
Location: Houston, TX
Posts: 829
Likes: 0
Received 0 Likes on 0 Posts
Default My exhaust and AFM experience

I've been wanting to put a louder exhaust on the truck, but Ive been scared of how the AFM would sound (I want to keep AFM). I decided to give it a shot, went with a 3in/3in magnaflow 5 x 11 x 22. Had a 3" tailpipe made to exit out the side location like on the 5.3 trucks, so no more resonator. It sounds great. Deep mellow sound. There is no difference in tone or resonance inside the truck when it goes into 4cyl. Sounds great. Just wanted to share.
Old 04-26-2008, 08:39 PM
  #2  
TECH Enthusiast
iTrader: (2)
 
COLDZ71's Avatar
 
Join Date: Sep 2005
Location: Milo, Maine
Posts: 660
Likes: 0
Received 0 Likes on 0 Posts
Default

Cool!!! Sounds like it works well for you.
Old 04-27-2008, 10:47 AM
  #3  
On The Tree
 
j225's Avatar
 
Join Date: Apr 2008
Location: gonzales,La
Posts: 198
Likes: 0
Received 0 Likes on 0 Posts
Default

Really,I notice quite an annoying difference,but maybe its because its the smallest oval muffler they make,or maybe cause its dumped.I have noticed some sound different and some don't...is it center in/center out?
Old 04-27-2008, 05:37 PM
  #4  
TECH Resident
Thread Starter
iTrader: (6)
 
A-Dub's Avatar
 
Join Date: Nov 2004
Location: Houston, TX
Posts: 829
Likes: 0
Received 0 Likes on 0 Posts
Default

Its center in offset out.

I had dod kick in at about 1200 rpm as I was cruising last night and you do notice it then. But usually I only see dod between 1500 and 2000 rpm and its not noticeable there.
Old 04-28-2008, 07:34 AM
  #5  
TECH Fanatic
iTrader: (1)
 
Allgonoshow's Avatar
 
Join Date: Dec 2003
Location: Halifax, Nova Scotia
Posts: 1,708
Likes: 0
Received 0 Likes on 0 Posts
Default

my magnaflow sounded great even in 4cyl mode until i put headers on it, now
you can really hear the change.

Last edited by Allgonoshow; 04-28-2008 at 08:55 AM.
Old 04-28-2008, 09:00 AM
  #6  
TECH Resident
Thread Starter
iTrader: (6)
 
A-Dub's Avatar
 
Join Date: Nov 2004
Location: Houston, TX
Posts: 829
Likes: 0
Received 0 Likes on 0 Posts
Default

I'm not planning headers. Buts thats easier said than done
Old 04-28-2008, 04:04 PM
  #7  
TECH Fanatic
iTrader: (1)
 
Allgonoshow's Avatar
 
Join Date: Dec 2003
Location: Halifax, Nova Scotia
Posts: 1,708
Likes: 0
Received 0 Likes on 0 Posts
Default

you will enjoy the m/f then, great sound
Old 04-28-2008, 07:20 PM
  #8  
On The Tree
 
j225's Avatar
 
Join Date: Apr 2008
Location: gonzales,La
Posts: 198
Likes: 0
Received 0 Likes on 0 Posts
Default

I will be doing away with afm when i get a tune.So I can deal with it for another month or two.

allgo you got a sound clip of that thing...planning on dynatech myself
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
pittman
Drag Racing
37
01-19-2016 07:06 AM
Mossyoakglock
GMT 900 Trucks General Discussion
4
08-28-2015 12:49 PM
JFortner5
Tuning, Diagnostics, Electronics, and Wiring
3
08-20-2015 06:13 PM
MattOKC
FORCED INDUCTION
30
08-18-2015 11:30 AM
Ls3silverado
Trucks and SUV Classifieds
0
07-31-2015 04:22 PM



Quick Reply: My exhaust and AFM experience



All times are GMT -5. The time now is 05:40 AM.