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hawkeye_WRX

01 May 2010 06:03 PM

Exhaust question

Can somebody explain to me the difference between a complete 2.5" decat system and a complete decat 3" system? Are the power differences vast?

Thank you

Jack

Midlife......

01 May 2010 07:39 PM

It depends on how much air needs to flow through the system...... for 400 odd BHP the sheer volume of exhaust gas can't escape quickly enough from a 2.5" system and restricts performance.

I ran 325 BHP on a 2.5" decat system OK :D

Shaun

hawkeye_WRX

02 May 2010 05:58 AM

Thanks Fella

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