When swapping intakes/TB's on a Gen 3 engine, is the X-Link adapter the ONLY option when changing to the later model 4 bolt 87mm throttle body? Is there any other way such as thru a custom tune or something? I'm in the end stages of a 6.0 swap in a Tahoe and looking at an intake swap in the near future. For the time being, I have to keep the original 5.3 intake due to return lines and my rig being a FlexFuel vehicle, which I want to keep that ability.

Anyone have recommendations or referrals for local to Socal, Orange County or Inland Empire preferred, tune shops or guy that does it from home? I was going to try LSDroid self tuning, but don't want the learning curve and just want to get this Tahoe on the road. Thanks.

 

At one time I was running a X-link to control my LS2 90mm but it failed and I switched to a spear tech unit which worked fine and I am currently using it on my Nick Williams 102mm

 

Thanks for the info. So there are different adapters available, whether it be Xlink, Spear tech, etc. I didn't know about the other mfg. Is some sort of adapter always required to make this swap? I have to get a custom tune to accommodate other changes, and is the TB difference something that can be dealt with just by the tune as well, or is the adapter a required hard part? I see there is a wire count difference between the original 3 bolt TB and the 4 bolt TB, 8 vs 6 wire but can that be overcome by changing TB pig tails and the custom ECU tune handles the rest of it? Hope that makes sense.

 

That TB is working flawlessly on my C5 tho, just to update you on where she ended up

 

niceeee

 

the spear tech harness is a 6 pin to 8 pin adapter. All that is needed is to replace the TAC module to a 2002 unit. That is all.