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Highland/North Scotland Area Rep
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4,159 Posts
Discussion Starter #1

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Super Moderator
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They are just yet another generic HKS dual copy exhaust, I would suspect they are all made at the same factory, some report good fit some bad, I had a good one that didn't require much fetteling.
Some also say the loose you some low end torque due to loss of back pressure, apart from this being a bit of a myth, as its a lot more complicated than just size and restriction.
Anyway I made a pretty std dyno graph with one of these fitted, just don't fit with decats unless you like LOUD!
 

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Highland/North Scotland Area Rep
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4,159 Posts
Discussion Starter #3
Ok cheers they dont sound too bad then, no would be keeping the cats and go for fast flow cats at some point too..
 

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Highland/North Scotland Area Rep
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4,159 Posts
Discussion Starter #5
Yeah ok don't really want mega loud I suppose did that with the r33 gtr.. Really want to find something about as loud as I've on the car right now so not that loud..
 

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Highland/North Scotland Area Rep
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4,159 Posts
Discussion Starter #8
Ok Think I'll change my plans and go for a system like that one I've got on the car instead..

Cheers for the advice
 

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FTO
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33 Posts
Oh right, heavy acceleration. So keeping it under 3000RPM and driving on highways would be fine? Not too loud/droning?

I had removed them with a previous car but at that time I got the whole cat-back exhaust done. She was fine.
 
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