Cadillac CTS-V 2004-2007 (Gen I) The Caddy with an Attitude...

Obx header resonators - do they work?

Thread Tools
 
Search this Thread
 
Old 09-10-2012, 01:27 AM
  #1  
Teching In
Thread Starter
 
iambigperm's Avatar
 
Join Date: Nov 2011
Posts: 40
Likes: 0
Received 1 Like on 1 Post

Default Obx header resonators - do they work?

I'm about to order some headers and was wondering if anyone can vouch for the resonators that come with the obx catless headers. Do they do much for sound control?

My exhaust is currently stock with a muffler delete. I know it will get alot louder with the headers and no cats so I'm hoping those resonators help.

Marcus
Old 09-10-2012, 06:30 AM
  #2  
TECH Veteran
iTrader: (12)
 
NeverSatisfied02's Avatar
 
Join Date: Dec 2004
Location: Friendswood, TX
Posts: 4,137
Likes: 0
Received 0 Likes on 0 Posts

Default

If they help... They don't help much. I ended up taking mine off
Old 09-10-2012, 06:48 AM
  #3  
TECH Resident
iTrader: (1)
 
DACTARI's Avatar
 
Join Date: May 2012
Location: Seattle, WA
Posts: 801
Received 6 Likes on 5 Posts
Default

Originally Posted by NeverSatisfied02
If they help... They don't help much. I ended up taking mine off
I was under the impression they were only there to help you pass a visual inspection that looks for cats. Otherwise, they are hollow. I got the catted version, which still sets off a CEL due to the high flow, and will require a computer tune to shut off the CEL. IMHO, just get the resonator versions. They looks the same, and if an inspector challenges you on whether you actually have cats, it's not like you can cut them open for him. I know you didn't ask, but there you go.

Oh, and OP: you're worried about loudness, but you removed your mufflers?

Last edited by DACTARI; 09-10-2012 at 07:03 AM.
Old 09-10-2012, 08:26 AM
  #4  
Teching In
Thread Starter
 
iambigperm's Avatar
 
Join Date: Nov 2011
Posts: 40
Likes: 0
Received 1 Like on 1 Post

Default

The mufflers were gone when I bought the car. I'm happy with how it sounds now, but worried it will be on the loud side without the cats.

So are the OBX resonators pretty much a perforated tube with fiberglass packing(glass pack)?
Old 09-10-2012, 08:31 AM
  #5  
TECH Junkie
iTrader: (3)
 
BudRacing's Avatar
 
Join Date: Dec 2006
Location: Dunwoody, GA
Posts: 3,544
Likes: 0
Received 5 Likes on 5 Posts

Default

^Essentially, yes. Even the catted version doesn't quiet it down very much. With the cutouts open it's a bit louder than with the stock manifolds and cats.

If it turns out to be too loud, just have some small mufflers welded in before the tips.



Quick Reply: Obx header resonators - do they work?



All times are GMT -5. The time now is 11:40 PM.