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Centre decat pipe


hilli182
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the turbo back i've bought the down pipe is one piece replacing the first and second cat,

like thisGD SUBARU IMPREZA WRX STI EXHAUST DOWN PIPE DECAT 01- DP7650

 

I think the 2nd decat pipe looks like this if you were to keep the cat in the down pipe

http://www.ebay.co.uk/itm/Subaru-impreza-wrx-sti-2nd-decat-pipe-exhaust-/161233031168?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item258a3cd000

note the angles are a lot sharper however you would still have your standard mid/intermediate pipe in place

 

and then the rest of it is cat back i.e. the pipe you are looking at and a back box

 

hope this isn't more confusing

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I think so too because it looks the same as other decat pipes just with the res box in.....

If it was just eBay listing that said decat then I'd be weary but having Googled it loads of sites say the same as the ad

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Just gone for sports cat and twin resonated centre section.3" all the way through, Sounds nice not overly loud no drone just a little burble at idle. (And i can her the turbo spooling up now) :-)

I wasn't looking for major prefomance gains or something to wake the world up. I just didn't want to pay dealer prices to replace a dead exhaust.

So far seems to be running well can t see any gains as to power (i wasnt expecting to be fair)

Boost is falling withing the same ranges so no spiking or overspool.

Only thing i'm not happy with is the 'all inc price' didn't include a new tubo gasket so i'll have to change that soon

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so I got out bid on yet another mid decat pipe last night, that's three now

 

so I went back on eBay this morn, and come across a 2.5 inch decat down pipe rather than the mid pipes I've previously been looking at, which was listed 10 min from my house  :)

 

picking it up tonight so will try and fit later in the week 

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I haven't had chance to get under and have a look at standard set up yet. The pipe I'm getting looks quite long (ill put a pic up later)

Will it remove the first cat or both?

Apologies for the daft questions by the way ha

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