I thought I would post this because I saw some conflicting info across the web. There are two throttle bodies that will bolt to our LS2 manifolds and plug in to the connector.
One of them is the "Gold Blade" LS3/LS7 (09+) throttle body. GM PN: 12605109
The other is the "Silver Blade" LS2/LS3/LS7 (05-08) throttle body. GM PN: 12570790
The silver blade throttle body is stock on all LS2s from 05-08. I decided to port my stock LS2 throttle body this weekend. I took too much off too close to the throttle blade. I put it back on the car and it idled around 1400RPM and the car basically drove itself until about 35MPH.
I searched and found the gold blade throttle body and noticed that they were significantly cheaper new, around $200 cheaper. Most people on LS1 tech and a few on this forum said it wouldnt work. There were couple of people that said it did work. I decided to take a chance and try the gold blade throttle body. Amazon has them for about $146, free returns. This is the one I bought.
I got it today and put it on the car, cleared the codes, performed a idle relearn procedure with my Tech 2 and drove it around. The car drives 100% great. Idles normally, throttle response feels similar to a stock silver blade throttle body. I can go WOT in all gears without throwing codes or "Reduced engine performance" mode.
Ive driven the car around for about 20 miles so far and all is good. I'll update this thread if anything changes.
Few more pieces of info: Yes, the top of this throttle body blade opens towards the intake manifold (AKA backwards from the silver blade). Yes, the throttle position sensor inside the throttle body reads the correct voltage and percentage. Driveability is great, like the stock silver blade LS2.
All of this was done on a 2005 LS2 A4 GTO.
One of them is the "Gold Blade" LS3/LS7 (09+) throttle body. GM PN: 12605109
The other is the "Silver Blade" LS2/LS3/LS7 (05-08) throttle body. GM PN: 12570790
The silver blade throttle body is stock on all LS2s from 05-08. I decided to port my stock LS2 throttle body this weekend. I took too much off too close to the throttle blade. I put it back on the car and it idled around 1400RPM and the car basically drove itself until about 35MPH.
I searched and found the gold blade throttle body and noticed that they were significantly cheaper new, around $200 cheaper. Most people on LS1 tech and a few on this forum said it wouldnt work. There were couple of people that said it did work. I decided to take a chance and try the gold blade throttle body. Amazon has them for about $146, free returns. This is the one I bought.
I got it today and put it on the car, cleared the codes, performed a idle relearn procedure with my Tech 2 and drove it around. The car drives 100% great. Idles normally, throttle response feels similar to a stock silver blade throttle body. I can go WOT in all gears without throwing codes or "Reduced engine performance" mode.
Ive driven the car around for about 20 miles so far and all is good. I'll update this thread if anything changes.
Few more pieces of info: Yes, the top of this throttle body blade opens towards the intake manifold (AKA backwards from the silver blade). Yes, the throttle position sensor inside the throttle body reads the correct voltage and percentage. Driveability is great, like the stock silver blade LS2.
All of this was done on a 2005 LS2 A4 GTO.