Yes, the larger Aperture II still adds power with the stock manifold. However, it is larger than the inlet of the manifold itself and there's probably a small amount of disturbance as the air flows from the larger opening through the smaller one. We haven't noticed any driveability issues, etc... as we've done this numerous times on street cars, but you may not be getting all the potential gains out of the part until you have a larger opening on the intake manifold. There is some material that could be removed on the manifold itself to increase the inlet size.

 

Jamie, is the ap2 65mm?

 

Yes, that's about as large as we can bore without damaging the core. The original Aperture is the same size as the inlet on the stock intake manifold.

 

Awesome, Jamie is there another way i can contact you, I have some questions regarding your 2 piece brakes?

 

E-mail: jeasley@worksmitsu.com or sales@worksmitsu.com (general). Oliver and Kirk are available at the shop if you want to give them a call. I won't be back in until Thursday.

 

Is a reflash required with a throttle body upgrade? you can see my current mods below...

 

It is not required, but there are some alterations in the software that can be performed in conjunction with the WORKS Aperture to fully maximize its benefits.