http://x3.xbimmers.com/forums/showthread.php?t=1215364
Selling my Custom Catless DP made by EnzoPerformance locally
fits: (RealOem part# 18327646432)
- X1 E84
- X3 F25 9/12 - current
- X4 F26 5/13 - current
- F10 528
Fits all 2011+ 528i, 2011+ X1 s/xDrive20i, 2012+ X3 xDrive20i/xDrive28i, X4 xDrive28i or 2011+ Z4 sDrive28i.
Upgrading the downpipe on your N20 is a relatively easy way to ensure unrestricted flow from the engine though the exhaust. Cat-less downpipes not only enhance the tone of your exhaust, by letting some of that turbo whine escape and adding a throaty note, they also enhance throttle and mid-range response through proper tuning. A lighter, less restrictive and better-sounding option to unleash your German power plant.
This kits are intended to be street-legal and race-worthy and are built to the highest standards. Each exhaust component is designed and crafted by hand on Long Island, NY using the highest quality materials and precise TIG welding.
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I dont have any performance dyno's after I got DP but here's an idea of what ER DP does on N20/N26
http://evolutionracewerks.com/node/215
Here you can see ER DP cost $545 and letting go mine for much cheaper since I have sold the car.