2.5' catless exhaust back for STI ??

Mohammadov · 03-25-2009, 12:44 PM

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.

* Registered users of the site do not see these ads.

Mohammadov · 03-25-2009, 12:46 PM

lol, the title is wrong..sorry for bad english

its not MeganRacing..

here its :

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

pearljam11 · 03-25-2009, 02:07 PM

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 +

Mohammadov · 03-25-2009, 02:57 PM

Quote:

Originally Posted by pearljam11

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?

jigga · 03-25-2009, 06:31 PM

Those would be crank numbers.. I think...
Most running around 300whp and up are running 3 inch setups.

Bullwinkle1983 · 03-25-2009, 08:53 PM

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.

jigga · 03-26-2009, 12:19 AM

Quote:

Originally Posted by Bullwinkle1983

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

03-25-2009, 12:44 PM	#1
Mohammadov * Banned * Member#: 110160 Join Date: Mar 2006 Location: STI Engine Vehicle: 2005 STI+JDM V7 Swap WRB	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. * Registered users of the site do not see these ads.

03-25-2009, 12:46 PM	#2
Mohammadov * Banned * Member#: 110160 Join Date: Mar 2006 Location: STI Engine Vehicle: 2005 STI+JDM V7 Swap WRB	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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03-25-2009, 02:07 PM	#3
pearljam11 Scooby Specialist Member#: 113335 Join Date: Apr 2006 Location: Downingtown, Pa Vehicle: 04 wrxVF39 282/266 05 STi AgileTuned 320/352	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 +

03-25-2009, 06:31 PM	#5
jigga Scooby Guru Member#: 9960 Join Date: Sep 2001 Location: in bed... Vehicle: 2002 Impreza WRX WRBlue Perl	Those would be crank numbers.. I think... Most running around 300whp and up are running 3 inch setups.

03-25-2009, 08:53 PM	#6
Bullwinkle1983 Scooby Newbie Member#: 172332 Join Date: Feb 2008 Location: St Paul, MN Vehicle: 2006 WRX 18g'd and RomRaided	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.