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Sports cat + standard exaust question?

Discussion in 'A3/S3 Forum (8L Chassis)' started by sandwich1987, Aug 8, 2012.

  1. sandwich1987
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    sandwich1987 Member

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    [Aug 8, 2012]
    Hi I'm currently getting my car custom will having a xspower manifold downpipe sports cat and the rest of the exhaust standard affect the level of power acheivable significantly over a decat and milltek??
    current mods are hybrid stage 4 turbo, xspower Manu downpipe and sports cat, welly cooler, forged rods, b5 tip, and 007p an a few other small bits. I was hoping to achieve around 300 but not chasing it just want to know if the current setup will hinder this goal?

    Thanks
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  3. <tuffty/>
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    <tuffty/> Badger 5 Edition Staff Member Moderator

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    [Aug 8, 2012]
    The OEM back box is quite restrictive as power rises... I did run mine for a very short while when I first went big turbo and the EGT's were insanely high.... (was over 350hp at the time)

    Keep an eye EGT's during mapping if you haven't got the budget for a Miltek or a custom cat back... sports cat should be fine, its the back box thats the next restriction in the chain....

    <tuffty/>
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  4. sandwich1987
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    sandwich1987 Member

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    [Aug 8, 2012]
    I'm hoping to get a milltek when it comes back, i had booked the mapping already when I spotted a potential but lol it's just they've phoned up and said the sports cat and standard oem exhaust may reduce the power I'll get, wish I had initially fitted a decat it was just to avoid mot issues :(
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