NM Engineering 658858 User Manual

Page 2

NM Engineering ∞ 3300 Corte Malpaso, Camarillo, CA 93012 ∞ 805.388.7171 ∞ 805.388.0030 FAX

engineer@nm-

eng.com ∞ www.nm-eng.com

10. Reconnect MAF sensor electrical connector.

11. 2011-3/2012 EARLY N18 Remove protective film from

double-sided tape on stainless steel fresh air hose bracket.
Slide bracket down between ECU and black plastic ECU
mount, while keeping double stick tape from touching. With
bracket pushed all the way down, press against ECU.

12. 2011-3/2012 Early N18 Attach brake booster line holder to

forward mounting hole in bracket. Secure fresh air pipe to
rearward mounting hole using supplied M6 x 10mm button
head bolt. [4mm hex key wrench]

13. 3/2012-UP N18 ECU cover removal: Remove 10mm hex bolt

then push inward on tabs to remove cover. Remove
protective film from double-sided tape on stainless steel
intake duct support bracket. Hook bracket on top edge of
black plastic case for ECU, positioning at back corner.

14. 3/2012-UP N18 Attach brake booster line holder to rearward

mounting hole in bracket. Secure fresh air pipe to forward
mounting hole using supplied M6 x 10mm button head bolt.
[4mm hex key wrench]

15. Loosely install silicone turbo inlet hose onto turbo using

supplied #28 hose clamp. NOTE: Do not tighten at this time.

16. Connect breather hose with 25mm clamp supplied.

17.

Install vent hose to “Y” breather adapter. NOTE: Spray inside
of hose with WD-40 or equivalent to ease installation.

18. Install and tighten silicone hose coupler onto MAF sensor

using supplied #44 hose clamp.

19. Loosely install supplied #44 clamps onto both silicone hose

ends, then install air intake pipe into silicone turbo inlet hose
first and then into MAF sensor hose. Adjust as necessary for
clearance, paying close attention to clearance of silicone
turbo inlet hose and coolant reservoir bottle. Tighten all
clamps. NOTE: Do not forget to tighten #28 hose clamp from
Step 14. Connect breather hose to cylinder head cover.

20. Using degreaser or contact cleaner and shop rag, clean inner

mounting flange of NM filter. Install NM filter onto MAF
sensor and tighten with long skinny screwdriver thru logo cut-
out or from back side of bracket.

21. Locate previously disconnected heater wires from breather

hose and vent hose. The supplied resistor harness connects
to the front connector that attached to the valve cover
breather hose. The other supplied resistor harness connects
to the rear connector that attached to the vent hose on the
factory intake pipe.

22. Heat shrink on supplied tubing to both connectors to weather

seal.

23. Double check complete installation.

This manual is related to the following products:

658858.1