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Exhaust question

Kieran Sliwowski
Kieran Sliwowski
in Ford Fiesta Club

Featured Replies

Hi all 

I have a hornet back box and centre pipe on my fiesta and have noticed a slight reduction in power and mpg since the install. 

I have read that the free flowing nature of this exhaust reduces the back pressure which can cause this. 

I was wondering would adding a sort of small baffle in the end of the exhaust pipe help increase the backpressure again and help recover the lost mpg? 

 

Many thanks 

  • Quote


    The idea with getting a new exhaust is that it allows you to remap. It's completely pointless adding back restrictions, you may aswell have not touched it in the first place...

  • Quote
    • 3 weeks later...
    • Author
    On 12/8/2019 at 4:45 PM, Luke4efc said:

    The idea with getting a new exhaust is that it allows you to remap. It's completely pointless adding back restrictions, you may aswell have not touched it in the first place...

    I would get a remap but on the 1.25 it's literally pointless as it doesn't do anything so it wouldn't be worth the money. 

    I just wanted something that sounded nicer. I've found once the engine is warmed up the mpg loss is much less noticeable than cold. 

  • Quote

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