Aftermarket ECU upgrade 02 Concorde 3.5 H.O
 

Hi new to forum
02 Concorde Limited 3.5L H.O > 145K

Looking to get more power out of my 02 Concorde Limited 3.5 H.O.
i looked online and saw 2 ecu performance modules from JET Performance.
V-Force Plus (68026) pn#561-68026
and the
PCM Stage 1 plug and play (90405) pn#561-90405.
says it can add UP TO 25 more HP.
There were no reviews to see any results.

Has anyone here used either?

Would like to know which is best for the money and which gives more HP.
I understand the the V-Force Plus is programmable. but if the plug and play gives sames results there is no need for programming, Right?

Also has anyone opened up the exhaust on these?
if so can someone explain what they used for mufflers? If made into a true duel with X or H pipe and size of piping out the back and how did it sound? Did you see any improvement in power and or the mpgs when not having your foot to the floor?
Same goes for a cold air intake or drop in style K&N air filter?

My goal is to just open up some power and have a better sound.

Thanks in advance.

Unfortunately not much interest from the aftermarket for the 3.5 LH cars. No one has had success with the plug & play tuners for these engines.
Many exhaust mods along with some great info here : www300mclub.org