Wondering what Cat would be best for me... - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

Reply
 
 
 
Thread Tools Search this Thread
Old 11-24-2007, 10:00 PM   #1
Senior Member
Posts like a Northstar
Thread Starter
 
Join Date: Sep 2006
Location: Long Island, NY
Posts: 601
Thanks: 0
Thanked 0 Times in 0 Posts
ChilinMichael is on a distinguished road
Default Wondering what Cat would be best for me...

I have recently installed the Dynomax Super Turbo muffler with dual exhaust outlets and it'* amazing, the sound, everything...perfect.

What I want to do now is replace the catalytic converter in hopes to have a little better flow and get the volume on the exhaust up a bit (I'm also thinking of removing the resonator when I replace the cat)

Here'* the cat I was looking at, if I'm not mistaken, I have 2.25" exhaust piping so this SHOULD work, I'm just wondering if it'* sufficent for emissions and such, and if it'll provide better flow...

http://store.summitracing.com/partde...5&autoview=sku
ChilinMichael is offline   Reply With Quote
Old 12-10-2007, 06:23 PM   #2
Senior Member
Posts like a Northstar
Thread Starter
 
Join Date: Sep 2006
Location: Long Island, NY
Posts: 601
Thanks: 0
Thanked 0 Times in 0 Posts
ChilinMichael is on a distinguished road
Default

*bump*...still looking for an answer...
ChilinMichael is offline   Reply With Quote
Old 12-10-2007, 11:54 PM   #3
Junior Member
Posts like a Ricer Type-R
 
Join Date: Aug 2002
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
willwren is on a distinguished road
Default

Measure your cat inlet and outlet, buy the high-flow cat of your choice for the best price. Most here go with Magnaflow. I'm not familiar with anyone buying that one.
willwren is offline   Reply With Quote
Old 12-10-2007, 11:56 PM   #4
Senior Member
True Car Nut
 
Join Date: Dec 2005
Location: August 07 COTM....NEBF '06, CEBF '06 OHMM '06 ONBF '07 CEBF '07
Posts: 4,064
Thanks: 0
Thanked 0 Times in 0 Posts
PRD2BDF is on a distinguished road
Default

I often see the Magnaflow hi flo 94106 being used the most often. That will be what I'm getting when the time comes.
PRD2BDF is offline   Reply With Quote
Old 12-11-2007, 12:03 AM   #5
Senior Member
Posts like a Northstar
Thread Starter
 
Join Date: Sep 2006
Location: Long Island, NY
Posts: 601
Thanks: 0
Thanked 0 Times in 0 Posts
ChilinMichael is on a distinguished road
Default

Thanks guys, the Magnaflow was only a few dollars more, I'll shoot for that. Appreciate the input.
ChilinMichael is offline   Reply With Quote
Old 12-11-2007, 12:06 AM   #6
Senior Member
True Car Nut
 
Join Date: Dec 2005
Location: August 07 COTM....NEBF '06, CEBF '06 OHMM '06 ONBF '07 CEBF '07
Posts: 4,064
Thanks: 0
Thanked 0 Times in 0 Posts
PRD2BDF is on a distinguished road
Default

Sweet, good luck with that, be sure to let us know how it goes
PRD2BDF is offline   Reply With Quote
Old 12-11-2007, 12:13 AM   #7
Senior Member
Posts like a Northstar
Thread Starter
 
Join Date: Sep 2006
Location: Long Island, NY
Posts: 601
Thanks: 0
Thanked 0 Times in 0 Posts
ChilinMichael is on a distinguished road
Default

Will do

Just so you guys know I recently put on a Dynomax Super Turbo Muffler and went dual out-exhaust with 2.5" to 3" tips, sounds great. Hoping this change of cat and removing the resonator will boost the volume a little?
ChilinMichael is offline   Reply With Quote
Old 12-11-2007, 12:22 AM   #8
Junior Member
Posts like a Ricer Type-R
 
Join Date: Aug 2002
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
willwren is on a distinguished road
Default

Don't remove the resonator. You probably won't like the result. My 93 didn't have one from the factory. I ADDED one to tone it down after the Maggy cat and muffler.
willwren is offline   Reply With Quote
Old 12-11-2007, 12:23 AM   #9
Senior Member
Posts like a Northstar
Thread Starter
 
Join Date: Sep 2006
Location: Long Island, NY
Posts: 601
Thanks: 0
Thanked 0 Times in 0 Posts
ChilinMichael is on a distinguished road
Default

Oh, too loud or raspy? What would you describe it as?

And also Wren, if I change over the cat to the magnaflow (right now it'* stock)..how'* it going to sound in comparison in your opinion?
ChilinMichael is offline   Reply With Quote
Old 12-11-2007, 12:30 AM   #10
Junior Member
Posts like a Ricer Type-R
 
Join Date: Aug 2002
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
willwren is on a distinguished road
Default

The cat is about 10-15 percent of the overall sound after adding a performance muffler. It makes it deeper, throatier, and mellower at the same time. Kinda like a mildly tamed V8 with a performance cam. That'* what it sounds like.

Take the res out and you get raspy poppy ricer-mating-calls.
willwren is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Rockers Arrived!!, Now Best Cat? fantastic88 Performance, Brainstorming & Tuning 17 12-23-2005 02:37 AM
whats the best cat converter for my 93 bonni rrrddgy 1992-1999 2 02-19-2005 02:37 PM
To CAT or not to CAT... Sol Performance, Brainstorming & Tuning 11 07-08-2004 08:19 AM
High Flo Cat vs No Cat blackssei 2000-2005 3 05-23-2004 02:45 AM
cat or no cat? iz zero back pressure ok? or.. no? delta8t8 1987-1991 3 06-16-2003 10:57 AM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 04:10 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.