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      08-18-2011, 02:50 PM   #2
richb811
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Drives: 2020 G20 330i M Sport
Join Date: Dec 2010
Location: NJ

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Quote:
Originally Posted by AsiaKid View Post
I know there are a few options now - and they all cost a bundle

Eisenm

but i hear abotu HP gains and torque etc, but is there any real proof? it seems tough for me to pay $2000 US + for a HP/TQ gain that isn't even documented anywhere.

If you guys can point me the right way, I will greatly appreciate it
AsiaKid

You really aren't going to see a huge gain from an Eisenmann exhaust on a 528i. Especially since the exhaust is only a muffler. You may see a 2-5 peak horsepower gain, but the main difference is sound.

If you are looking for a power bump, go with the BMS powerbox. Will give you a nice little 10hp kick, and improve throttle response and driveability.

Appreciate 0