E38 740i Performace stainless Steel Exhaust & Tuning Question

Notices
 

Thread: E38 740i Performace stainless Steel Exhaust & Tuning Question

Reply to Thread
Results 1 to 3 of 3
  1. E38 740i Performace stainless Steel Exhaust & Tuning Question 
    #1
    BMW Fanatic
    Car Details
    m300raj's Car Details
    Model of Car:
    740i Alpina upgrade
    Year of Manufacture:
    1998
    Transmission Type:
    Automatic
    Car Body Type:
    Saloon

    Join Date
    Jun 2008
    Location
    Eastleigh Hampshire
    Posts
    38
    Thanks
    1
    Thanked 4 Times in 4 Posts
    I have a E38 740i which has had a Full Stainless Steel Exhaust fitted from downpipe it came with the car and has quad tailpipes. I just had the MOT done and it failed on emmissions so the garage changed the lambada sensers and it passed fine. ( i don't thik the sensers were replace when the exhaust system was changed earlier this year before I purchased the car) the car seems to be runing smoother on my drive back from the grage and i was told that it would also improve my MPG. My question is should or do I need to have the car tuned or not after a exhaust upgrade?
    Thanks
     
     

  2. Remove Advertisements
    BimmerForums.co.uk
    Advertisements
     

  3.  
    #2
    BMW Guru
    Car Details
    328mark's Car Details
    Model of Car:
    E46 328i se
    Year of Manufacture:
    1998
    Transmission Type:
    manual
    Car Body Type:
    saloon
    328mark's Avatar
    Join Date
    Aug 2008
    Location
    corringham essex
    Posts
    5,471
    Thanks
    815
    Thanked 2,426 Times in 1,920 Posts
    the engine will tune itself as long as all the sensors are in good condition...theres not a lot you can do to it short of a remap
    what i've felt,what i've known
    never shined through in what i've shown.

    -------------------------------------------
    PLEASE READ THE POSTING RULES & HOW TO CORRECT THREAD TITLES & THE SELLING RULES
     
     

  4.  
    #3
    BMW Guru
    Car Details
    Ronnie's Car Details
    Model of Car:
    See above
    Year of Manufacture:
    Never too old, never too new
    Transmission Type:
    Always manual
    Car Body Type:
    Usually 5 doors
    Ronnie's Avatar
    Join Date
    Dec 2007
    Location
    Bournemouth, Dorset.
    Posts
    20,398
    Thanks
    6,198
    Thanked 7,052 Times in 5,322 Posts
    As 328mark has said, it won't need any tuning, the cars DME(ECU) will adjust itself over time, you can reset the adaptations if you have a good scanner and this will reset the DME on to it's original "setting/map)"
     
     

Tags for this Thread

View Tag Cloud

Posting Permissions
  • You may post new threads
  • You may post replies
  • You may not post attachments
  • You may not edit your posts