Exhaust and intake - do I need an aftermarket ecu - S2KI Honda S2000 Forums

UK & Ireland S2000 Community Discussions related to the S2000, its ownership and enthusiasm for it in the UK and Ireland. Including FAQs, and technical questions.

Exhaust and intake - do I need an aftermarket ecu

Reply

 
 
 
Old 04-12-2018, 12:55 PM
  #1  
Thread Starter
 
Join Date: Jan 2015
Posts: 74
Thanks: 0
Thanked 0 Times in 0 Posts
Default Exhaust and intake - do I need an aftermarket ecu

I bought a K and n intake a while back to make the car sound better. Now my exhaust hangers have rusted and can't really be repaired. So I've got myself a custom single exit exhaust. So with these 2 mods do I need an ecu remap for potentially running too lean, I don't really want to buy an ecu etc ideally. Or will I be fine without.

Thanks for the info as always
R5HKK is offline  
Reply With Quote
Old 04-12-2018, 01:35 PM
  #2  
 
BenRNBP's Avatar
 
Join Date: Jul 2012
Location: South Coast
Posts: 3,328
Thanked 19 Times in 19 Posts
Default

You'll be fine, although you could get a Bluetooth/Wifi ODB2 dongle and look at the Long term fuel trims for peace of mind
BenRNBP is offline  
Reply With Quote
Old 04-12-2018, 01:39 PM
  #3  
Thread Starter
 
Join Date: Jan 2015
Posts: 74
Thanks: 0
Thanked 0 Times in 0 Posts
Default

I have one but don't know what fuel trims are. Thanks for the response btw
R5HKK is offline  
Reply With Quote
Old 04-12-2018, 11:35 PM
  #4  
 
Join Date: Oct 2007
Posts: 409
Thanked 2 Times in 2 Posts
Default Re-remap

I changed my intake and exhaust manifold and did notice a slight improvement in how the car drove. I then had the car remapped using a Hondata Flashpro, this made a big difference especially in the mid range. To use the Hondata the car must be my06 or younger.
Santenay is offline  
Reply With Quote
Old 04-13-2018, 12:12 AM
  #5  
Thread Starter
 
Join Date: Jan 2015
Posts: 74
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Thanks for that, not really after gains, more concerned about the longevity of the engine.

​​​​​
R5HKK is offline  
Reply With Quote
Old 04-15-2018, 12:30 AM
  #6  
Registered User
 
Bubbels**'s Avatar
 
Join Date: Feb 2016
Posts: 270
Thanked 6 Times in 4 Posts
Default

How about full exhaust (header/test pipe/catback), intake and throttle body? Would probably need to port the intake manifold as well when using a bigger TB?
I assume this would need a remap, but what ECU is recommended for remapping an older model using only bolt-ons?
Bubbels** is offline  
Reply With Quote
Old 04-16-2018, 10:09 AM
  #7  
 
s2konroids's Avatar
 
Join Date: Jan 2006
Location: location, location
Posts: 20,819
Thanked 7 Times in 7 Posts
Default

You run lean for a short period of time when vtec engages after that its fine, its only something you need to think about if you are on a track or for sustained periods of time.

Running a number of bolts like I/M/E of you run leaner more so at vtec andin WOT but nothing i would call dangerous - you need a tune to reap rewards anyways.

You have lots of choice really depends what your tuner is comfortable with, i tune S2000's with anything from simple VAFC2 through to a greddy emanage ultimate and AEM v2 standalone.

You can my feedback on here, facebook or my website.

Last edited by s2konroids; 04-16-2018 at 10:21 AM.
s2konroids is offline  
Reply With Quote
The Following User Says Thank You to s2konroids For This Useful Post:
Bubbels** (04-16-2018)
Old 04-20-2018, 07:17 AM
  #8  
Thread Starter
 
Join Date: Jan 2015
Posts: 74
Thanks: 0
Thanked 0 Times in 0 Posts
Default

So from the little research I did and from all your responses - thank you - the conclusion reached is no remap required in terms of engine safety from just an exhaust and ecu.

FYI for those interested my custom single exit exhaust that I bought from a guy on fb sounds insane along with the K and n intake. It's quite loud although I've got nothing to compare to but it's a welcome change after 3 years.
​​​​
R5HKK is offline  
Reply With Quote
 
 
 


Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

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