WOW!!!!!!! What a friken difference. If you haven't ever pulled the Tb and cleaned everything,..It pulls alot better,esp in lower RPM's.better response, feels alot smoother too.

I toasted my TPS sensor at work trying to clean my TB (too much cleaner=dead!) with TB cleaner, so I got a BLOX TPS sensor from eBay (under 30$ shipped! w00t!) and pulled the TB,replaced the TPS sensor, but while I had all the sensors off the TB, I scrubbed and soaked and cleaned it until it looked brand new,and let TB cleaner set in my IM,wiped/scrubbed as much as I could reach,and pretty much doused it with a whole can of BG TB cleaner,...put it all back together(of course initial start up was HORRIBLE until all the TB cleaner was gone) and now shes running AWSOME

if u want u can take the whole intake manifold off and check the end where the runners meet the head. There is hella gunk as thick as a tooth pick or more there trust me if u never took it off the cars life. Even if u run tb cleaner all day u would miss the angles of the runners.

Reason why i know this is becoz I used to pour seafoam 24/7 in the brake booster that runs into the intake manifold runners. Until i order a bored out 64mm intake manifold to match my port 64mm tb. I notice when i remove my old IM from car and looked at the runner ends OMFG still hella dirty and u can see the area that the injectors sit would be very clean as there where the flow is going thru. Its hard to explain without pictures but when i get a chance i will post my old one up.

Well after i install the new/clean one idle, power, smoothness all came back. Give it a shot at it.

Be careful with seafoam,..Unless your running/using a meaturing straw/unit,you can burn up your piston rings,..(I manage a quicklube,so I have the fuel induction hose with a meaturing unit thingy)

Seafoam also works very well for helping keep against the build up if your using it with some regularity,and will definitely help, but it can only do so much if it hasn't been done with the car/engine had alot less mileage with some regularity