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Tilly · 09-23-2014, 02:21 PM

Do you mean I'd need 10-12psi purely because of the exhaust bore being too small? Ie. If I did go for a 3" system instead that 300whp is achievable off a lower boost because it flows easier? And if so would 8psi suffice with a 3" system?

09-23-2014, 02:21 PM	#4
Tilly Junior Member Join Date: Sep 2014 Drives: GT86 TRD Location: UK Posts: 2 Thanks: 0 Thanked 0 Times in 0 Posts Mentioned: 0 Post(s)	Do you mean I'd need 10-12psi purely because of the exhaust bore being too small? Ie. If I did go for a 3" system instead that 300whp is achievable off a lower boost because it flows easier? And if so would 8psi suffice with a 3" system?