I own a 95 bonnevile se with the series 2 3800. The engines fine just want more pier and th 4t65e tranny not to mention the sound of the supercharger I know the l67 will bolt right in bout what about the harness and computer since mine is an obd one and the l67 is obd 2 and the computers are in diffrent locations. Correct me if I'm wrong. So I have to swap the harness under the hood and computers. ( is their any way to use my original PCM ? Probly not) but I have some qustions will the code in my key work with the new computer.? Will I have to swap my intrior wiring harness, if not will I have to add tration control buttons and performance buttons? And how about the obd plug will that need changed, or maybe even my instrument cluster? Well bottom line is what will be need to be swap in my 95 bonneville se to allow the l67 supercharged 3800 v6 with the 4t65e HD trans to run and drive? I have a choice of getting these (l67 and 4t65e HD) out of a 96 lasaber( park ave can't remeber) or an 1996ssei. Both with under 80xxx but is ethier one more powerful or better gearing? I'm going to pick the motor ant trans up this Friday. Any help would be greatly appreciTed. Thank you

Can some one plz help me

I'd love to help ya out Matt. I have the firewall pinouts sitting on my laptop at home from 95-99. This would make it very easy for you to use a 97 harness and repin a couple things at the firewall connector and be up and running.

Unfortunately New England got slammed and I have no power.

So thats the only mods ill have to do is rewire a few things. Um you need you my email to or can you post it on here. So I can still use the stock gauges and what not along with the stock interior wiring harness

You would have to set up an aftermarket boost gauge..

i got a tri-gauge cluster for the pillar im gonna run a boost gauge, trans temp and maybe air fuel or something else.harbor freight has really nice gauges for cheap

Or you could run one aeroforce