Ford Focus Forum, Ford Focus ST Forum

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Creative 01-05-2013 03:07 PM

Hey I'm a newbie to the focus and have been doing some research on exhaust for the 2012-2013 models. I currently daily a 2013 se 5spd. I wanted to pull some more power out and wanted to know what the benefits of having a 3" vs a 2.5" will the 3" be to much.

I was also reading that none of the manufactures have a header available yet and people have used the 08-11 headers but e flex pipe is to short. Does anyone know the exact length that the flex pipe needs to be extended to on the obx package or is the a direct fit header that will soon be available for the focus.

JL330 01-05-2013 04:37 PM

Nobody makes a 3", 2.5 is fine.

Sonic_HedgeHog 01-06-2013 09:25 AM

3" is over kill for the n/a Mk3... You can use an FSWERKS header for the Mk2 Duratec.

Joey D 01-06-2013 09:36 AM

Even a 2.25" won't be bad. Just go with whatever exhaust you like the sound of the best.

TheDriver916 01-06-2013 04:49 PM


Originally Posted by Joey D (Post 4527677)
Even a 2.25" won't be bad. Just go with whatever exhaust you like the sound of the best.

I have to second that. I went with a 2.25" magnaflow cat back and I'm very happy with the sound. No drone at highway speeds but has a nice rumble and gargle to it.

Creative 01-06-2013 05:51 PM

I'm going with the fswerks stealth cause I like that ad Borla is overpriced. Are the headers a direct fit if I use the fswerks.

And yes this Is going in y na, the st I need stock for autoX

TheDriver916 01-06-2013 08:32 PM

Yeah I'm sure the fswerks is fine but I'm just haply I paid $300 including tips and labor. The only reason it was so cheap was because my buddy said he paid for it to get me a veteran discount Lol. Thanks uncle Sam.

Creative 01-06-2013 08:39 PM

That what I thought and I like the few videos on YouTube. The only thing I'm thinking is I'm going to cut off the twin tips for a single tip instead.

gonefhsn 01-06-2013 09:16 PM

the benefit for going to a 2.5 over a 2.25 is you will get more hp out of the 2.5 if you decide to boost the car. The smaller diameter will give you better tq numbers on a boosted car.

Joey D 01-06-2013 09:38 PM

The likelihood someone would boost a Mk3 though is pretty slim since it would take a ton of work to do it and probably would just be cheaper to buy an ST.

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