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Old 03-25-2009, 12:44 PM   #1
Mohammadov
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Default 2.5' catless exhaust back for STI ??

I found MeganRacing CBE..but the pipes are 2.5inch and the exhaust tip is 70mm(2.8 inch)..well,until now my car is stock..my near-future thinking is 380 HP and 19 PSI.

what do u think guys?

its price is damn cheap..

one more question..the downpipe shall be 2.5 inch?

Thanks in advance.
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Old 03-25-2009, 12:46 PM   #2
Mohammadov
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lol, the title is wrong..sorry for bad english


its not MeganRacing..

here its :

http://www.europerformance.co.uk/pag...product=420491

Last edited by Mohammadov; 03-25-2009 at 01:52 PM.
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Old 03-25-2009, 02:07 PM   #3
pearljam11
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380 whp? On a 2.0 thats tough unless you have mucho $$$ and a 6spd/ppgs.

~Unabomber's Manifesto~
Which exhaust diameter is best? Exhausts have 3 diameters:

1. 2.5": Good for 300-350 HP
2. 3.0": Good for 500-600 HP
3. 3.5": Good for 600HP +
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Old 03-25-2009, 02:57 PM   #4
Mohammadov
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Quote:
Originally Posted by pearljam11 View Post
380 whp? On a 2.0 thats tough unless you have mucho $$$ and a 6spd/ppgs.

~Unabomber's Manifesto~
Which exhaust diameter is best? Exhausts have 3 diameters:

1. 2.5": Good for 300-350 HP
2. 3.0": Good for 500-600 HP
3. 3.5": Good for 600HP +
Thank you..did he mean 350 WHP?
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Old 03-25-2009, 06:31 PM   #5
jigga
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Those would be crank numbers.. I think...
Most running around 300whp and up are running 3 inch setups.
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Old 03-25-2009, 08:53 PM   #6
Bullwinkle1983
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Not true. A good 2.5" exhaust can run up above 350 WHP no problem. Your restriction will be in the design of your axleback. Get a quality high flowing one.
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Old 03-26-2009, 12:19 AM   #7
jigga
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Quote:
Originally Posted by Bullwinkle1983 View Post
Not true. A good 2.5" exhaust can run up above 350 WHP no problem. Your restriction will be in the design of your axleback. Get a quality high flowing one.
I stand corrected
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