Welcome to Mustang Evolution.
|
  |
|
|
|
03-30-2009, 05:31 PM
|
#1
|
|
  |
|
With Or Without Cats
|
|
Registered User
Join Date: Mar 2009
City: Houston
State: Texas
Posts: 5
Thanks: 0
Thanked 0 Times in 0 Posts
|
I'm wanting to install a new exhaust system (headers to tailpipes) and one thing keeps confusing me. What does the car sound like without the cats? I've been checking out MAC's off-road H-Pipe which seems like a simpler install, but then I read in here that without the cats, a V6 gets a bit high pitched at higher rpms. Please help me out, I'm not gonna make a purchase until I figure this thing out. Oh, and I'm pretty sure "Off Road" means "Not Emissions Legal," right?
|
|
|
|
|
Are you a Mustang fan? If so we invite you to join MustangEvolution.com. Once you join you'll be able to post messages in our forums and upload pictures of your Mustang. You will also be able to browse our site with limited advertisements as a thank you for joining our community. What are you waiting for? Join up now and tell us a bit about your Mustang!
|
|
03-30-2009, 06:08 PM
|
#2
|
|
|
|
Re: With Or Without Cats
|
|
No more obstacles
Join Date: Jul 2005
City: Marin County, Nor Cal
State: California
Posts: 919
Thanks: 0
Thanked 4 Times in 4 Posts
|
I haven't deleted cats but I have run without mufflers when I was switching from my dynomax to flowmasters. It sounded like a truck on start up. Even back then it was too loud for me.
search on youtube and i'm sure you'll find some clips.
__________________
99 Cobra: flowmasters, 18x9.5 cobra R's, soon to be tuned and geared. daily driver
99 V6:in avatar, Mac Cai, true duals/flowmaster 40's ,UDP, custom tuned, bullitt suspension 18" wheels...taken by mother nature 
|
|
|
|
|
|
03-30-2009, 06:23 PM
|
#3
|
|
|
|
Re: With Or Without Cats
|
|
IMPORTS SUCK
Join Date: Jan 2009
City: flora
State: Illinois
Posts: 1,738
Thanks: 37
Thanked 29 Times in 29 Posts
|
if you just want it loud get an offroad x pipe you can't make it too loud |
|
|
|
|
|
03-30-2009, 07:35 PM
|
#4
|
|
|
|
Re: With Or Without Cats
|
|
Registered User
Join Date: Mar 2009
City: Houston
State: Texas
Posts: 5
Thanks: 0
Thanked 0 Times in 0 Posts
|
I'm thinking about getting Pypes true dual converter back exhaust, they come with cats and seem easier to install...but they aren't the cheapest things out there. Anybody know of any other brands offering the same all-in-one package for a little less? |
|
|
|
|
|
03-30-2009, 08:48 PM
|
#5
|
|
|
|
Re: With Or Without Cats
|
|
postarama
Join Date: Aug 2003
City: Southaven
State: Mississippi
Posts: 25,324
Thanks: 3
Thanked 33 Times in 33 Posts
|
I ran my v6 without cats....and would not recommend you doing the same. At least get high flow cats.
__________________
"I'm not driving too fast...just flying too low"
Mine:
-03 SB Cobra vert- 2552 of 5082 Born 02/25/03
Our's:
90 7up vert - new project-92 bronco 5.slow and 33's
335
|
|
|
|
|
|
03-31-2009, 08:20 AM
|
#6
|
|
|
|
Re: With Or Without Cats
|
|
WTF^^...
Join Date: May 2003
City: Birmingham / Florence
State: Alabama
Posts: 30,643
Thanks: 18
Thanked 198 Times in 186 Posts
|
v6's do not sound good with no cats, keep it mellow toned, not super free flowing/loud as they may sound good idling but thats all that sounds good~ above 2k rpms = bumble bee |
|
|
|
|
|
03-31-2009, 08:22 AM
|
#7
|
|
|
|
Re: With Or Without Cats
|
|
Deranged
Join Date: Jan 2005
City: Largo
State: Florida
Posts: 7,100
Thanks: 5
Thanked 41 Times in 38 Posts
|
v6 without cats sound like crap go with some high flow cats as Brad suggested
__________________
Mods-MAc CAI , True Dual Flowmaster 40,3.73 ,T-Lok, 25% UDP, 3/8 Phenolic Intake Spacer ,Steeda Tri-ax, SCT Chip/Dyno Tune
|
|
|
|
|
|
04-03-2009, 01:09 PM
|
#8
|
|
|
|
Re: With Or Without Cats
|
|
Retreat hell! We just got here!
Join Date: Apr 2008
City: Pickens
State: South Carolina
Posts: 29
Thanks: 0
Thanked 0 Times in 0 Posts
|
My 98 has a o/r x pipe and flowmaster 40's and it sounds good(for a v6) but like SpectorV said above 2,000 rpm it sounds like a bumble bee so I really dont go above 2,000 rpm
__________________
|
|
|
|
|
|
04-09-2009, 01:14 PM
|
#9
|
|
|
|
Re: With Or Without Cats
|
|
05 V6 Stang Supercharged-NOT CATS
Join Date: Nov 2008
City: queens
State: New York
Posts: 616
Thanks: 14
Thanked 9 Times in 9 Posts
|
Agreed once i get past 3000 rpms it starts to get higher pitched. loud as hell though lol |
|
|
|
|
|
04-09-2009, 11:07 PM
|
#10
|
|
|
|
Re: With Or Without Cats
|
|
I have relasped from my weakness
Join Date: Nov 2008
City: Metairie
State: Louisiana
Posts: 320
Thanks: 7
Thanked 10 Times in 10 Posts
|
Bump to SpectorV get the hi-flow cats
__________________
1996 GT (sold)
1997 Cobra 
1993 Ranger GT (not broke)
Want an 03/04 Cobra 
Born:5/23/97, Build # 5722 of 6961 Builds
|
|
|
|
|
|
04-10-2009, 07:11 AM
|
#11
|
|
|
|
Re: With Or Without Cats
|
|
WTF^^...
Join Date: May 2003
City: Birmingham / Florence
State: Alabama
Posts: 30,643
Thanks: 18
Thanked 198 Times in 186 Posts
|
it wont give you any power to replace the cats, just do a catback and save the money as a high flow cat is rather expensive. |
|
|
|
|
|
