what type of aftermarket products are available for increasing the power on an e55.

please advise

 

If you do a search, you will find ALOT of useful information.

Do a search on:

Kleemann
Renntech
Brabus
Headers
Throttle Body
Cams
ECU
Pulley
Exhaust

Those should help.....

 

www.kleemannusa.com

 

...........I agree with DragonAMG. I will go with Kleemann. The reason is that besides the fact that they have good products, they are by far the most user friendly of the list of tuners and tuner wanabees. If something goes wrong with your car, you can expect their constructive involvement.Also, their network of authorized dealers makes it easier to find a knowledgeable technician near you. There are much less expensive options especially ASP. For under $800 you can have an ASP pulley installed and gain about 35-45RWHP. The problem is that if you choose to mod your car further with headers etc, ASP has no further offerings. But if you were only going for a pulley upgrade, I think ASP product and price is hard to beat.

.....If you have a V12 twin turbo Mercedes, I'll say go with Renntech. Although other tuners have ECU/TCU upgrades for these cars, for whatever reason, only the Renntech cars seem to make it to the tack to demonstrate what they can do.

Ted