I've been thinking I'm probably going to be outflowing (or atleast close to outflowing) my stock TB by the time my build is done, so, its time to start looking into DBW TB solutions.

I'm looking into either an LS3 (Silver fin 08 or below due to 09 having the valve opening opposite) or LS2 DBW. Both are 90MM (stock 04+ DBW is 75MM).

Posting this link for myself and anyone interested: Throttle Body Selection with a Pocket Calculator

I would be having a custom adapter plate made and splicing a wiring harness if necessary.


Basically I'm looking for any information I may not have come across on 04+ GP TB upgrades and anything else that may relate to this working or not working. TIA.