Well decided to post up a little info for the guy who have the NBS trucks and want to go with a NNBS intake but don't have the extra cash for the X-Link or for a NNBS 4 bolt TB. There is a cheap alternative tho won't give you the same gains but for the mean time will work great. I recently bought a FAST adapter plate ($50 and made for the FAST 102 LSX RT) to see if it will work on my old NNBS intake. Reason for this is because my little bro has a 02 silvy and wanted it but didnt have any extra cash for a new 90mm tb. Well it fits and works great and thought I would post pics and just let you guys know. Idk if doing this intake swap and not going with the bigger tb will gain you any hp but at least you can get the intake or any other 90mm+ installed and just get the tb later. Again this might be useless info but just thought I would share.

 

looks good i belive there is a harness to adapt the newer 87mm TB to the old harness(x link)

 

Just throwing it out there but i have a nnbs 87mm tb id sale to anyone looking for one for $75 shipped but have to pay the paypal fees or send as gift.

 

I'd like to have one of these in my toolbox, for just in case

 

i just got a adapter similar to this. ill run stock 78mm tb and let you know the seat of the pants feeling. i plan on port and polishing the 78 too until i get a ls3 and x link. to many projects going on to drop 400 on that

 

hey man not to threadjack i was wonderin if you had the PN for that adapter by any chance...im lookin to swap my tbss intake on soon but dont feel like spending 350 on a new throttle body, id rather put that money towards my cam

 

Its kinda of a PITA to find on there site but HERE it is

 

thank you very much sir!

 

searched and no real after install reviews. Does this defeat the purpose of the intake swap?

 

I ran the plate on mine for a few weeks, it made the idle pretty choppy like the engine was cammed. There was an improvement according to the seat o the pants dyno.