Notices
Series I Aftermarket Performance Modifications Discussion of power adding modifications

BHR Resonated Midpipe with Catalyst question

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old 06-30-2016 | 09:34 AM
  #1  
King Arthur's Avatar
Thread Starter
Registered
iTrader: (1)
 
Joined: May 2014
Posts: 17
Likes: 2
Question BHR Resonated Midpipe with Catalyst question

I am very interested in getting the BHR midpipe. I have been doing a lot of research on it and would like to get the one with the Catalyst add on because I'd really like it to pass inspection.

My question is will this through a CEL when I install it? I am new to modding and don't want to have any CEL after a mod.

What are the pros and cons to having the BHR midpipe with and without the catalyst.

Thanks everyone for your help!
Old 06-30-2016 | 08:45 PM
  #2  
BigCajun's Avatar
Banned
iTrader: (1)
 
Joined: Jan 2013
Posts: 6,164
Likes: 2,697
Originally Posted by King Arthur
I am very interested in getting the BHR midpipe. I have been doing a lot of research on it and would like to get the one with the Catalyst add on because I'd really like it to pass inspection.

My question is will this through a CEL when I install it? I am new to modding and don't want to have any CEL after a mod.

What are the pros and cons to having the BHR midpipe with and without the catalyst.

Thanks everyone for your help!
I don't know about the catalyst one, but I have the BHR midpipe.
Pros; Excellent fit and durability.
Sounds good with no rasp or drone.
Slight improvement in HP & MPG.
Most importantly, peace of mind knowing a clogged cat won't kill my engine.
Old 06-30-2016 | 09:59 PM
  #3  
King Arthur's Avatar
Thread Starter
Registered
iTrader: (1)
 
Joined: May 2014
Posts: 17
Likes: 2
Thanks for the feedback BigCajun!
Old 07-03-2016 | 08:30 PM
  #4  
shooz's Avatar
New Member
 
Joined: Jul 2013
Posts: 3
Likes: 0
From: Los Angeles
I had the BHR midpipe with the catalyst. No CEL until the cat had about 16K on it. It reeked from the get-go although inside the car you couldn't smell it. Considering $130 (the price of the Davesport cat in the BHR midpipe) is like the cheapest cat you can get, I feel like 16K out of it isn't awful. The stock cat on a series 2 runs $3k, my stock cat lasted 71K miles.

After the davesport cat failed we welded a nice HJS cat into the BHR midpipe. HJS is still less than stock but way more than the Davesport cat in the BHR. I feel like performance is comparable to the Davesport, but smell and noise is WAY less, pretty much like stock. I think the HJS I have would even pass a California sniffer test, the old Davesport only passed my last smog because that mechanic had a giant soft spot for rotaries. I can't imagine the Davesport cat would pass emissions inspection anywhere, although it is fairly quiet and doesn't sound modified unless you know what a stock RX-8 sounds like.

Last edited by shooz; 07-03-2016 at 08:33 PM.
Old 11-09-2016 | 06:54 PM
  #5  
Hydralisk19's Avatar
Registered
 
Joined: Nov 2015
Posts: 33
Likes: 0
Originally Posted by BigCajun
I don't know about the catalyst one, but I have the BHR midpipe.
Pros; Excellent fit and durability.
Sounds good with no rasp or drone.
Slight improvement in HP & MPG.
Most importantly, peace of mind knowing a clogged cat won't kill my engine.
Sorry for the late reply here but ive been looking into getting a BHR midpipe as well, i currently have the Borla Catback.

If i get the midpipe without the Cat, it WILL throw a CEL and wont pass a simple OBD emissions test? Also does the midpipe make it siginificantly louder? I currently sit around 80-85 DBA at 50' and my local track has a limit of 92. i heard that it doesnt make it much louder, just a different note, and removes the drone at freeway speeds, just looking for a confirmation from an owner.

Thanks in advance
Old 11-09-2016 | 09:15 PM
  #6  
Hydralisk19's Avatar
Registered
 
Joined: Nov 2015
Posts: 33
Likes: 0
Originally Posted by Charles R. Hill
The BHR/Borla pairing is a nice-sounding combo and it is true about the dB levels as I tested them with a sound pressure meter many years ago when developing the midpipe. At idle and cruise it sounds like the OEM unit and has no drone. Under load, the tone is only a little bit louder with the tone being deeper. I cannot recall exactly what the dB difference was put it was only something like 4-6 dB louder than the OEM unit.

It should be noted that the #1 killer of emissions catalysts (whether OEM or aftermarket) are weak or failed ignition coils and cat failure is the first thing to go when the coils have been weak too long. Next comes loss of compression if left alone too long.

Check this out; https://www.youtube.com/results?sear...hr+midpipe+rx8
Awesome thanks for the reply! The coils are relatively new within 3k miles, more just looking for an upgrade, and with it being a daily, the highway drone can get a little annoying sometimes, especially if i have someone else in the car im trying to talk to.

So if i do get the BHR midpipe w/o cat, i would have to switch it to the OEM cat to pass emissions? it is just a basic OBD hook up, no testing exhaust or anything. Just wanting to make sure what im getting into before buying.
Old 11-10-2016 | 04:53 AM
  #7  
BigCajun's Avatar
Banned
iTrader: (1)
 
Joined: Jan 2013
Posts: 6,164
Likes: 2,697
You will likely get stored codes for cat delete.
If you clear them before you get the OBD scanned, there may be a 'not ready' state that might be considered cause for rejection.
It can be masked with an Access Port device.
I get a 2 year inspection here in Missouri. 2 so far.

I had a bad cat and replaced it with the BHR, and bought a cheap Walker cat for less than $200 just for emissions testing.
The first time they checked the OBD and passed, the second time a different place did a basic check and didn't even put it on a lift.

Even if you had to reinstall the cat once a year, to me it's worth the trouble for the peace of mind the midpipe provides.
It's not very hard to swap out.
Old 11-10-2016 | 10:18 AM
  #8  
JamesD31's Avatar
Registered
 
Joined: Aug 2012
Posts: 466
Likes: 0
From: Chicago, IL
Just drive your car a bit after you swap to OEM and clear codes. Also, most states are now rejecting cars who are using blocked codes or who "fake" numbers - so be aware.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
JantzenRX-8
RX-8 Parts For Sale/Wanted
9
01-13-2017 12:09 PM
tgaffner
Series I Exterior Appearance and Body Kits
13
08-19-2016 08:12 PM
derkenblosh
Series I Tech Garage
3
08-19-2016 02:48 PM
Setflyn41
Series I Trouble Shooting
9
07-01-2016 08:11 AM
Mr X
New Member Forum
14
06-21-2016 08:24 PM



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


All times are GMT -5. The time now is 02:34 PM.