Age old question: 2.5" vs. 3" exhaust

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01-31-2007, 01:05 PM

WTScooby

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Join Date: Dec 2005

Location: L.A.

Posts: 11

Car Info: 2006 WRX Wagon

Age old question: 2.5" vs. 3" exhaust

Hello all,
I am considering a Hayward and Scott cat-back for my 06 WRX wagon. I wanted to hear about the advantages/disadvantages of using 3" piping vs. 2.5" piping. Any help would be appreciated.

01-31-2007, 08:35 PM

WRX409

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Join Date: Jul 2006

Location: Allentown,PA

Posts: 1,069

Car Info: 04 WRX

The search function is your friend use it.

02-01-2007, 12:43 AM

WTScooby

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Join Date: Dec 2005

Location: L.A.

Posts: 11

Car Info: 2006 WRX Wagon

i did

I did use the search function, but got too many answers to my query. Also, a lot of the info related to the EJ20. I want information specific to the 2.5L Turbo in my car.

02-14-2007, 10:10 AM

Platinum STI

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Join Date: May 2004

Posts: 23

was wondering the same thing. Have 06 and also like the hayward & Scott stuff but questioning whats better for our motor turbo setup.

I searched also with not much luck.