Go Back  MY350Z.COM - Nissan 350Z and 370Z Forum Discussion > 350Z Tech Area > Engine & Drivetrain > Intake Exhaust
Reload this Page >

Cat Delete, Resonator Delete, o2 Sensor Extener/Spacer. New Z Owner. Please Help

Notices
Intake Exhaust Moving all that air in and out efficiently

Cat Delete, Resonator Delete, o2 Sensor Extener/Spacer. New Z Owner. Please Help

Old 04-13-2016, 08:48 PM
  #1  
Apex_The_Master
Registered User
Thread Starter
 
Join Date: Apr 2016
Location: Miami Florida
Posts: 3
Likes: 0
Liked 0 Times in 0 Posts
Default Cat Delete, Resonator Delete, o2 Sensor Extener/Spacer. New Z Owner. Please Help

Hi everyone. First time here. I just picked up a bone stock 04' red auto 350z. I only drove the car for 3 days before doing my first few mods.

I recently had the cats removed, had a strait pipe welded. Resonator removed as well. I purchased a pair of o2 sensor extenders, which i've used in all my vehicles to avoid the p0420 code.

Since I don't know this car so well It may be in my head but I feel a loss of power now around the 2000-3200 RPM area.

Is it just me?

So to sum up now I have No cats, No res, o2 sensor spaced and a stock muffer.

I've heard a ton about back pressure, maybe since the cats are gone the exhaust is clashing at the y-pipe?

Could use some expertise on the matter.

Thanks!
Apex_The_Master is offline  
Old 04-14-2016, 06:41 AM
  #2  
travlee
Master
iTrader: (8)
 
travlee's Avatar
 
Join Date: Jul 2011
Location: Texas
Posts: 37,580
Liked 5,894 Times in 4,059 Posts
Default

you lost low end torque by cutting out the cats, not to mention you are prob running lean now. you could get it tuned to help it out some
travlee is online now  
Old 04-14-2016, 12:35 PM
  #3  
ARRRT
Registered User
 
Join Date: Nov 2013
Location: Ukraine
Posts: 175
Liked 26 Times in 18 Posts
Default

I felt the same lost of torque after test-pipes install
Go tune your Z as travlee said
ARRRT is offline  
Old 04-24-2016, 06:36 PM
  #4  
travlee
Master
iTrader: (8)
 
travlee's Avatar
 
Join Date: Jul 2011
Location: Texas
Posts: 37,580
Liked 5,894 Times in 4,059 Posts
Default

we have a rocket scientist, what did he think by removing everything

https://my350z.com/forum/engine-and-...wbie-here.html
travlee is online now  
Old 07-10-2016, 06:09 PM
  #5  
HCO_surfer
Registered User
 
Join Date: May 2016
Location: NYC
Posts: 75
Likes: 0
Liked 7 Times in 7 Posts
Default

Sounds like a redneck to me.... You might want to sell that beater you just bought and get something that's not covered in plastidip.
HCO_surfer is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Rev_Night
Exhaust
4
04-18-2016 07:52 PM
Dallasmavs92
Maintenance & Repair
1
04-05-2016 09:09 PM


Thread Tools
Search this Thread
Quick Reply: Cat Delete, Resonator Delete, o2 Sensor Extener/Spacer. New Z Owner. Please Help


Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

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.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: