Notices
Series I Do It Yourself Forum Wanna save some coin or time/money in the shop? Read up on Do-It-Yourself custom mods and repairs & post your own here.

DIY: (Sorta) Noise reduction for HF cat

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old 12-18-2004, 08:13 AM
  #26  
Torque is Good
 
foxman's Avatar
 
Join Date: May 2004
Location: Indianapolis, IN
Posts: 694
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by Omicron
Random sells two that will fit in the place I indicated above. Shebam and I both have the 12" Random, and agree that it could be just a touch quieter. TheBean has (I think) the 18" Random model that will just barely fit, and I suspect would be better than what Shebam and I got. Since you've got a midpipe and not a HF cat (which is even louder) I would suggest you get at least the 18" Random.
Did you order this directy from Random, I don't see this listed on their website. I don't have a resonator since I have the midpipe without resonator and it seems to me this type of unit would also work by splicing it in the midpipe where a resonator would normally be.

EDIT - Sorry I missed the two posts above, where you guys seem to be talking about the same idea, I am going to look at it and see if the cat or flange would be lower, than a spliced in muffler.

Last edited by foxman; 12-18-2004 at 10:22 AM.
Old 12-18-2004, 11:21 AM
  #27  
Momentum Keeps Me Going
 
Spin9k's Avatar
 
Join Date: Sep 2002
Location: Colorado
Posts: 5,036
Likes: 0
Received 4 Likes on 4 Posts
I have a Canzoomer that I haven't installed, and so was thinking to get the Canzoomer hi-flo cat, resonator, S2 maps and use the stock muffler to save a little and .. just maybe.. the sound would be upped just the right amount :D
Can you guys see anything wrong with this?

Has anyone done that and listened if it has the 'right' increased sound tone/level? With so little HP lost in the stock muffler, why waste it? Maybe by giving the stock muffler a little more sound to work with on the way in will produce something better on the way out? Not to mention the the savings of not putting out the $$ for a catback.
Old 12-21-2004, 12:20 AM
  #28  
Registered User
 
Noguni's Avatar
 
Join Date: Dec 2003
Location: Las Vegas
Posts: 50
Likes: 0
Received 0 Likes on 0 Posts
You think this will quiet it down more then the glass pack? I have the borla and I'm having a hard time deciding to go back to stock or perform this fix before buying a hi flow cat.

http://stainlesssteelmufflers.com/St...elMufflers.htm

turn your volume down before clicking on link
Old 04-21-2006, 06:10 PM
  #29  
Banned
 
dastallion951's Avatar
 
Join Date: Jun 2005
Location: Riverside, Ca
Posts: 188
Likes: 0
Received 0 Likes on 0 Posts
just out of curiousity with u guys that have installed the midpipe with no cat, just resonator, and catback exhaust.......... any of u come across the DREADED CEL problem........im installin my midpipe tomorrow n just curious if i might be havin that problem, ive heard of ways to try n fool the 02 sensor, if any of u have had the problem n corrected it, can u give me the headsup.......??? i would be greatly appreciated.
Old 04-23-2006, 12:23 PM
  #30  
Banned
 
dastallion951's Avatar
 
Join Date: Jun 2005
Location: Riverside, Ca
Posts: 188
Likes: 0
Received 0 Likes on 0 Posts
ok i installed the midpipe keepin my fingers crossed have driven about 50 miles no CEL light......im hopin it wont..........but i am likin the B&B midpipe mixed with the racing beat sound, sounds like ur typical exhaust until about 4000 rpms, when it like hits a transition into the higher rpms, then just screams like a street bike, i love it........ plus revvin the motor i can shoot some blue flames out the tailpipes.
Old 04-23-2006, 02:57 PM
  #31  
Race Steward
iTrader: (1)
 
Hymee's Avatar
 
Join Date: Aug 2003
Location: Brisbane, Australia
Posts: 5,430
Likes: 0
Received 2 Likes on 2 Posts
50 miles isn't necessarily enough to trigger the test cycle that will cause the CEL. More like 500 miles, give or take, a monitoring cycle will take place (given the correct conditions) where the on board diagnostics will do some tests to see if the cat is doing it's job.

If it can't see that the cat is working effectively, then it is CEL time.

Cheers,
Hymee.
Old 04-24-2006, 01:58 AM
  #32  
Registered User
 
florent75's Avatar
 
Join Date: May 2005
Posts: 107
Likes: 0
Received 0 Likes on 0 Posts
I've got the cel after 350 miles ...

and I feel the car very good no power lost or torque ... (it's normal ??)

I read somewhere that with the cel you're always in open loop mode ??? is it right ??
Old 06-09-2006, 05:47 PM
  #33  
⎝⏠⏝⏠⎠
 
mysql101's Avatar
 
Join Date: Apr 2004
Location: USA
Posts: 8,625
Received 5 Likes on 4 Posts
I got the cell after 20 miles. heh.

Has anyone gotten the 18"?

I'm interested since the borla + b&b midpipe was insantly loud, and rapsy as hell. Stock catback + midpipe is pretty good under 4k, and sounds very nice over 5k, but inbetween that range, it's got a buzzing sound that annoys me.

Any idea what could fix the buzz? Or do I need a sound clip for you to guess?
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
mdl0209
Series I Trouble Shooting
14
05-23-2019 05:46 PM
XianUnix
Series I Trouble Shooting
6
09-29-2015 03:48 PM
tommy26Germany
Series I Trouble Shooting
11
09-29-2015 10:33 AM
FubarI33t
New Member Forum
12
09-28-2015 08:45 PM
Jb4ker96
Series I Trouble Shooting
0
09-27-2015 10:06 PM



You have already rated this thread Rating: Thread Rating: 0 votes,  average.

Quick Reply: DIY: (Sorta) Noise reduction for HF cat



All times are GMT -5. The time now is 06:07 PM.