Anyone who has or did have(OSCAI) a SI have a high pitched whistle when you step on it lightly to moderately. I LOVE the growl and swooooooosh sound, but the whistle when I initialy step on it is kinda annoying. Just wondering if this is NORMAL or did I jack up the install.

Also, did anyone notice that when you open the throttle under the hood with the SI, that it sort of "bogs" or "stutters" before reving up? Kinda makes me think I lost some throttle response, but it's still worth it.

 

I didn't notice any throttle response change....but i do get the whistle at a certain throttle level...i think of it as my turbo kicking in

 

it's normal to make the whistle noise on half-throttle..

 

Thanks!

I was just wondering if I screwed up the install, since that rubber gasket was a ***** to get back in with the MAF/tube. I thought I might have a small air leak that made a whistle or something.

 

The throttle response is probably the loss in low end torque that's been noticed with most Cone intakes. I had the whistle with my pop charger. I'm now running OSCAI.