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Topic Review (Newest First)
02-21-2013 12:07 PM
Roadworthy I'm on the fence with exhaust but I'd be more keen (yes, keen) on the 2.5 as 2.25 just isn't that much of an increase but $$$ For now, I've been enjoying a very quiet ride!

I had a quasi 3" exhaust for my Mazdaspeed6 when I first bought it used. It was loud but it did have a very nice low note and actually helped spool up compared to stock mufflers with a 3" downpipe.
02-17-2013 10:44 PM
FocusBoy58
Quote:
Originally Posted by Bwill9886 View Post
I certainly felt no torque loss on my 2.5" exhaust.

To me it sounded like companies that chose to go with 2.25" exhausts were doing so for better sound quality (at least in their opinion) and sound level.
Then they never heard the deepness that a 3" duratec exhaust makes. I would love to get proper sound clips but that just isn't possible.
02-17-2013 04:55 PM
Bwill9886 I certainly felt no torque loss on my 2.5" exhaust.

To me it sounded like companies that chose to go with 2.25" exhausts were doing so for better sound quality (at least in their opinion) and sound level.
02-16-2013 06:58 PM
Creative 2.5 is by far the best from my point of view. The fswerks feels great.
02-16-2013 04:50 PM
_RED_ I agree with focusboy, and check the dyno thread to see numbers. Myself I am running a 2.5 and noticed no low end TQ loss if anything I gain some low end tq
02-16-2013 01:32 PM
FocusBoy58 Duratecs make the best power on 2.5" to 3" Maximum exhaust size. I went from 2.5" to 3" header back and bumped me up from 176 to 183whp, tq only increased very slightly but the torque was still a table top 140-157wtq from 2500 and up.

If you are going to spend the money get a 2.5" system period. trust me.
02-16-2013 01:08 AM
ToreadorFocus i personally have chosen the fswerks 2.5" race
02-16-2013 01:07 AM
ripto Good to know. I don't plan on doing those type of mods, sounds like 2.25" will be my sweet spot.
02-16-2013 01:03 AM
LOADED 2.25'' will be ideal If you don't plan on going Forced induction or moderate to high engine work Ex: Heads or cams.
02-15-2013 07:00 PM
ripto Thanks for the info. What would you say are the RPM values separating low, mid, and high?
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