1. I already have my injen intake installed and i was wondering if taking off the whole bumper and making a cold air is worth it?

2. where can i find a 2.4 manifold for my 2008 Ls?

 

you don't have to take off the bumper just take off the fender well lining on the front and pull it back.

 

^^^^^^yep wat brandon said. don't need to take the bumper off and it is worth it i think.
and you can find the 2.4 manifold at crate engine depot .com or buy parts and make a kit urself on gmpartsdirect.com.

 

Thanks, i just finished converting it.

So this http://www.crateenginedepot.com/stor...P1817C137.aspx
is the "2.4" intake manifold?

Will my injen intake fit on it?

 

Yes...your injen intake will fit. And yes that kit is the one. However....if you search for my post on the 2.4 manifold, i have explained a way to get a kit together for cheaper than CED

 

thank you.

 

its way wotrth it. SRI sounds louder but CAI you can feel more power up top. i remove my CAI and convert to SRI during the winter. 2.4 mani can be found on Crate Engine Depot.....also a very good upgrade and yes it wi;; fit, throttle body is the same

 

Yes the 2.4 intake will work on your 2008, Ive got one. Expect to pay about $140-180 for everything you need to do the swap. You DO NOT want to buy the CED kit since.