hi CKeng, It kinda doesnt make sense if the extender is before the TB (in between TB & Air filter). There's actually a formula / calculation to the length of ram airpipe from intake opening to TB (Browser Warning). I have one TB Spacer, installed between the intake manifold and TB. The increase is very minimal. It's about the same price as LCP, so I say, LCP is a better choice. I'm still on my stock airbox with K&N. oddly, my FC decreased compared to generic Tan Choong air filter. Regarding the questions that I had another day about breather, this is a good article from a friend. (Crankcase Ventilation Explained - N/A Edition) Managed to get Ken, thank you. He says BSR is good mod with little/no vibration, no need to reset ECU or whatsoever. I'll probably do this in a few month's time when I get my oil change interval :) Thanks.