ordering 2015 wrx: STI performance exhaust upgrade?
+ Reply to Thread
Results 1 to 6 of 6

This is a discussion on ordering 2015 wrx: STI performance exhaust upgrade? within the Car Purchasing Forum forums, part of the ClubWRX.net Marketplace category; Hi, Planning to put my order in for 2015 WRX. Anyone know the difference (dimensions or performance) between the stock ...

  1. #1
    Registered User
    Join Date
    Apr 2014
    Posts
    2

    ordering 2015 wrx: STI performance exhaust upgrade?

    Hi,
    Planning to put my order in for 2015 WRX. Anyone know the difference (dimensions or performance) between the stock and "STI Performance Exhaust Upgrade"?

    Thanks!

  2. Remove Advertisements
    ClubWRX.net
    Advertisements
     

  3. #2
    Registered User frenziedcage's Avatar
    Join Date
    May 2012
    Location
    Colorado
    Posts
    414
    There isn't a difference. One makes noise the other doesn't.

  4. #3
    Registered User
    Join Date
    Apr 2014
    Posts
    2
    Thanks for the reply. Kind of hard to believe the only difference is sound. The thing cost $1100 MSRP and is marketed as "performance upgrade". I understand its shinier than stock and has bigger tips. Maybe has gradual bends or high-flow mufflers?

    Anybody have a '15 wrx and knows the diameter of their intermediate pipe?

  5. #4
    Registered User frenziedcage's Avatar
    Join Date
    May 2012
    Location
    Colorado
    Posts
    414
    If we are talking about just a catback exhaust, then yes its just for noise lol you might gain 5-10hp with it but nothing you will notice. CBE isn't doing anything for gains really now if you swap your downpipe out for a new one you could notice significant gains.

  6. #5
    Registered User wreckingball man's Avatar
    Join Date
    Jul 2012
    Location
    Rocky Top
    Posts
    2,324
    If it's anything like the SPT exhausts of the past there's no real performance advantage. Just sound.

  7. #6
    Registered User
    Join Date
    Jun 2014
    Posts
    22
    Quote Originally Posted by wreckingball man View Post
    If it's anything like the SPT exhausts of the past there's no real performance advantage. Just sound.
    i talked to the dealer and saw it , and it is different. the point where the two mufflers join into the single pipe from the motor is much bigger. on the stock on , the connection isnt 3"+ -- the SPT is larger and therefore opens it up quite a bit.

    dealer is saying that the mufflers are different and not as restrictive either - so there is some difference other than noise.
    i have seen many good reviews, and i will get more info this wk as i am ready to buy this so i will get the full details.

    the mandral-bends are different as is the connection point i talk about - i looked at it then looked at my stock one as they were changing the oil.

+ Reply to Thread

Quick Reply Quick Reply

Register Now

Please enter the name by which you would like to log-in and be known on this site.
If you do not want to register, fill this field only and the name will be used as user name for your post.

Please enter a password for your user account. Note that passwords are case-sensitive.

Please enter a valid email address for yourself. We strongly suggest that you stay away from using aol, yahoo, msn, and hotmail accounts. Sometimes the mail server blocks the emails from our server. As a result you will not receive any notifications including the confirmation email.

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.


Posting Permissions

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