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      11-21-2012, 04:29 PM   #20
mapleridge
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Drives: E90 N52 AT
Join Date: Apr 2011
Location: Vancouver, BC

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Quote:
Originally Posted by andrey_gta View Post
how loud is the solution compared to stock Manifold?

regarding my Q about the donor manifold. Where dide top portion that connects to the Engine come from? They dont look like the copper colored OEM stainless that i've seen before.
The collector is a custom made casting based off the OEM design. It is brand new so you see the stainless color. With heat they will turn copper color like the OEM set.

With OEM exhaust there is zero discernable increase in noise with these headers alone. Personally. This is how I like it. Add a res delete or muffler delete and its a whole new can of worms.