What kind of gains am I looking at? - Page 2 - 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 11-16-2003, 12:47 AM   #11
Senior Member
Posts like a Northstar
 
Join Date: Aug 2003
Location: Buffalo Grove, IL
Posts: 666
Thanks: 0
Thanked 0 Times in 0 Posts
Glasuan is on a distinguished road
Default

Don't mean to take over the post, but how much is install on a muffler and hi-flow cat?
Glasuan is offline   Reply With Quote
Old 11-16-2003, 01:09 AM   #12
Burgundy_Boat
Guest
 
Posts: n/a
Default

Quote:
Originally Posted by Glasuan
Don't mean to take over the post, but how much is install on a muffler and hi-flow cat?
not taking it over, i wanna know that myself
  Reply With Quote
Old 11-16-2003, 01:36 AM   #13
Senior Member
Posts like a Northstar
 
Join Date: Sep 2002
Location: Riverton, Wyoming
Posts: 740
Thanks: 0
Thanked 0 Times in 0 Posts
egladman is on a distinguished road
Default

I paid $40 bucks to have my cat installed and i believe I paid $125 for my muffler and tips and installation.
egladman is offline   Reply With Quote
Old 11-16-2003, 10:56 AM   #14
Senior Member
True Car Nut
 
Join Date: Feb 2003
Location: Bloomington-Normal, IL 1997 SE
Posts: 3,734
Thanks: 0
Thanked 0 Times in 0 Posts
macho_mike21 is on a distinguished road
Default

if you have access to a welder and a cutting torch you can do it yourself.
macho_mike21 is offline   Reply With Quote
Old 11-16-2003, 12:49 PM   #15
Senior Member
True Car Nut
 
Join Date: Nov 2002
Location: Texarkana, Texas
Posts: 6,041
Thanks: 0
Thanked 0 Times in 0 Posts
Damemorder is on a distinguished road
Default

you don't even really need a cutting torch..... I've done it with a Sawzall
Damemorder is offline   Reply With Quote
Old 11-16-2003, 07:03 PM   #16
Senior Member
Posts like a Corvette
 
Join Date: Oct 2002
Location: N.W. Indiana
Posts: 1,206
Thanks: 0
Thanked 0 Times in 0 Posts
Roadrash187 is on a distinguished road
Default

Quote:
Originally Posted by Glasuan
I think no one has answered his main question of gains. I believe it is usually in the neighborhood of 10-15 hp from exhaust mods. With a full catback system it goes up to 25 hp or so. BTW, if you put on stickers thats an extra 25 hp alone, as no one will want to race you
I think those numbers are a lil high for our motors. Sometimes you dont gain any horsepower when you put a high flow cat on. If you just change out the muffler & cat you might see 10hp. But then again the only way we will really know is if you get the car dynoed.
Roadrash187 is offline   Reply With Quote
Old 11-18-2003, 02:25 AM   #17
Senior Member
Posts like a Turbo
 
Join Date: Aug 2002
Location: Funky Town, Texas
Posts: 333
Thanks: 0
Thanked 0 Times in 0 Posts
Bigfunkytown is on a distinguished road
Default

Before full exhaust replacement on GPGT:[email protected]

After:
zzp ported manifolds=$250.00 bucks
2.5 custom downpipe/-w-
Carsound "Magnaflow" hi-flo cat=$70.00+$45.00 for instalation(included downpipe)
2.5 cat back=$100.00
original u-bend and resonator delete=$60.00
Sumitt turbo muffler=$15.00
total=$540-(minus the 60 that the bonne won't need for u-bend delete)

new time in the quarter= [email protected]

mind you this is on aa N/A engine. Hope this helps with your question.
Bigfunkytown is offline   Reply With Quote
Old 11-18-2003, 03:37 AM   #18
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

Funky makes a good point. Good exhaust work will net more HP on a SC car than a NA.
willwren is offline   Reply With Quote
Old 11-18-2003, 11:24 AM   #19
Junior Member
Posts like a Ricer Type-R
 
Join Date: Nov 2003
Location: Pittsburgh PA
Posts: 18
Thanks: 0
Thanked 0 Times in 0 Posts
soup is on a distinguished road
Default

I really like this site i dont really know anyone who has a bonny besides me and i read all your posts and stuff and im learning myself i was going to add a topic just like this about the muffler and the high flo cat and now i didnt have too thanx
soup is offline   Reply With Quote
Old 11-19-2003, 04:29 AM   #20
Senior Member
Posts like a Corvette
 
Join Date: Oct 2002
Location: N.W. Indiana
Posts: 1,206
Thanks: 0
Thanked 0 Times in 0 Posts
Roadrash187 is on a distinguished road
Default

Hey Funky did you run that fast including your stage one kit?
Roadrash187 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Good Gains -Gutting Airbox Waller Performance, Brainstorming & Tuning 10 12-18-2004 01:40 AM
Torque gains from 3.4" pulley Sol Performance, Brainstorming & Tuning 28 11-29-2004 05:40 PM
Exhaust Power Gains? CmptrNerd Performance, Brainstorming & Tuning 3 11-28-2004 10:55 PM
Gains from CAI, hi-flow cat, and muffler Glasuan Performance, Brainstorming & Tuning 10 11-19-2003 12:23 AM
HP gains on larger TB? 93-SSEI- Performance, Brainstorming & Tuning 15 02-26-2003 05:36 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 12:20 AM.


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.