Immaculate low mileage 2004 Silver Grey CSL Inspired Build

[0-60motorsports]

Love it. I still need to get the seatbelts set done but havent been able to find a donor set to send to them yet.

[Avedis]

Now that the interior is done, I wanted to share some completed photos and summarize everything in one post. The interior portion of this build has been spread over ten different pages, and I thought it would be useful to have one post that contained everything I’ve been working on for the last two years.

First, the photos
















From the front of the interior to the rear, here’s everything that was done:

• Dinan brushed aluminum pedals.
• Custom / refurbished steering wheel, 1cm thicker diameter, smooth Nappa like leather, ///M colored tri-stitch. Blank upper trim (button delete), lower trim refinished in matte black.
• Steering wheel and dashboard airbags replaced under recall.
• Navigation delete, radio delete panel, new instrument switch panel, HVAC controls moved up, new lower sunglass holder.
• Z4 rear view mirror, manual adjustment with grey clown-nose alarm.
• New sunroof motor cover without home link and sunroof switch.
• New inner door handles without HK logo
• CSL front door panels in matte 1x1 carbon fiber, ceramic coated for a satin finish. CSL door handles in custom brushed aluminum finish. Sound deadening on back of panels. Door panel speakers deleted. Airbags deleted.
• CSL center console in matte 1x1 carbon fiber, ceramic coated for a satin finish. Mirror adjustment switch moved to center console. New hazard switch and mirror switch trim. CSL leather e-brake boot.
• Seat belt assemblies sent off and replaced with ///M colored tri-stitch belts. Factory seat belt tags were re-sewn on.
• Recaro Sportster CS front seats, custom Nappa like leather by AMX performance, ///M logo embossed in headrests, ///M logo tag sewn into side bolster. Seats were installed onto factory seat power sliders with custom seat brackets. Momentary switch was wired for forward and backward movement. New nuts, bolts and bolt covers for seat brackets.
• CSL rear door panels in matte 1x1 carbon fiber, ceramic coated for a satin finish. Sound deadening on back of panels. Door panel speakers deleted. Airbags deleted.
• Rear headrest deleted, headrest holes plugged with BMW blind plug. Rear center seatbelt delete.
• Rear parcel shelf replaced with European version (no LATCH holes), smaller speaker grills without HK logo. Rear deck speakers and subwoofer deleted. New through loading cross member trim. New rear seat belt outlets.
• New c-pillars and interior light bulbs.
• Amplifier, navigation and all other audio components deleted from trunk.
• Massive amount of new clips, screws and fasteners throughout the interior.

Phase 1 of this build complete.

[Kipjames3]

From the beginning, the theme for the interior was simplicity. Remove anything unnecessary, not just for weight, but to remove distraction from what this car is all about, driving pleasure. Simply put, the Z4 mirror fell in line with that theme. It removed the home-link feature which I never used, and removed the auto dimming feature which is a known failure point in this car. Lastly, it was plug and play, no modifications needed.

Sounds like exactly what I'd like also. Appreciate the reply.

[Avedis]

Another quick question but why did you pick that specific oval mirror? I'd like to do the same but I see there's a few oval options for our cars. Just curious because they range from $300 up to $650.

From the beginning, the theme for the interior was simplicity. Remove anything unnecessary, not just for weight, but to remove distraction from what this car is all about, driving pleasure. Simply put, the Z4 mirror fell in line with that theme. It removed the home-link feature which I never used, and removed the auto dimming feature which is a known failure point in this car. Lastly, it was plug and play, no modifications needed.

[Kipjames3]

No worries,

Left side: 51418222705 (LINK) Right side: 51418222706 (LINK)

I also sent you a private message with a request. Thanks!

Thank you.

Edit: I just deleted the post.

Another quick question but why did you pick that specific oval mirror? I'd like to do the same but I see there's a few oval options for our cars. Just curious because they range from $300 up to $650.

[Avedis]

Sorry I meant the door handle speaker covers.

No worries,

Left side: 51418222705 (LINK)
Right side: 51418222706 (LINK)

I also sent you a private message with a request. Thanks!

[Kipjames3]

Part No.51468222943
LINK here

Sorry I meant the door handle speaker covers.

[Avedis]

I’m going to print a V3 of my snorkel-to-fog-light-duct sometime this week and can always share the finished product with you.

I'd definitely like to take a look, thanks for the offer!

Do you have the part numbers for the non HK speaker covers?

Part No.51468222943
LINK here

[davidinnyc]

Phase 4 and 5 was modification, preparation and installation of the CSL intake. First, all the components were ceramic coated. I again used the gloss ceramic coating on top of the matte clear coat to achieve a satin like finish. I already covered this process in detail in the CSL door panel install, so I won’t be going over it again here. Just wanted to share some photos of these glorious trumpets.

I’m going to print a V3 of my snorkel-to-fog-light-duct sometime this week and can always share the finished product with you.

[D-O]

I did not understand until now why it is referred to as the "Mullet" tune. Priceless.

[0-60motorsports]

Thanks for the detailed review! I Will definitely be getting a tune from Bry5on but have to wait for some other mods first.

[Bry5on]

Thank you for taking the time to write all that! I’m super glad it’s working great and that you’re out there loving the car, regardless of the driving style or speed. Enjoy it.

[Avedis]

Recently had Bry5on remote in and install his CSL Mullet tune. My initial impressions were all really positive, but I wanted to wait and drive the car a few more times before I posted a small review.




After driving the car a handful of times now, this tune can be summarized in three words; Refined, responsive, and rowdy.

Refined - When doing the installation, Bryson mentioned this was version 22 of the tune. It really shows. You can tell from the moment that the car fires up for the first time that this tune is refined. Cold start, warm up, idle, all perfect. I purposely tried to put the car in situations where CSL tunes normally hiccup. I slow rolled up and down my driveway in reverse and first gear, no issues at all. I went to a neighborhood with really steep hills and went up and down in first and second gear, again, no issues. If there wasn’t a slight whistle noise coming from the CSL intake, you’d simply never know the car has a CSL intake and aftermarket tune installed. Throughout the rev range, it always just feels so refined and composed. It never feels like an aftermarket affair, or that you are having to compromise in some way.

Responsive - The car has no lag, in any gear, at any speed. The car never feels like it’s trying to calculate/think. Bryson also calibrated the accelerator pedal to be slightly more sensitive which adds to that feeling of responsiveness. It sounds crazy, but the car feels like it has more torque. Aside from feeling more responsive at take-off type speeds, I also put the car in weird cruising type situations/speeds to see how it would react. Third gear cruising at 30mph, put your foot down and the car is so responsive. Same results with fourth gear at 40mph. It builds speed so quickly from less than ideal positions. With the way he set it up, the car just feels that much peppier now.

Rowdy - Up top, things get rowdy, a little wild, but never fully unhinged. When driving hard and in the higher rev range, the car is an absolute riot, but it never loses the refinement and responsiveness as described above. This is a review of the software, rather than the hardware, but it would be impossible not to mention the noise. At full throttle, the CSL intake lets out such a visceral and raw noise it literally drops your jaw. I’ve lost count of how many times I’ve said, “Jeeeeesus Christ” while driving this car hard. It’s really addictive and makes you want to take the car out for a drive even when you have absolutely no reason to. Civilized down low, party up top, the Mullet tune lives up to its namesake.

The more I get to interact with forum members, the more I get to appreciate just how passionate and knowledgeable you all are. I am infinitely appreciative of the advice, willingness to help, ongoing back and forth messaging, and bespoke parts that you all create. This really is an incredible community.

[kensuke]

Thanks for sharing so many details with the community, and for posting so we can live vicariously through your effort. Your partner's a saint, giving you the time and space to do this car justice!

[Rokoz]

This build is goals man - very well done