I finally pulled the trigger on Burger Motorsports JB4 and decided to order the BMS clutch stop at the same time. Both products arrived in a few days and I installed them right away.
When I bought the car, the previous owner told me it had some sort of JB tune that was wired inline with the MAP sensor. After doing some research, I thought he was referring to JB+ which would increase boost an additional 2-5psi for an extra 20HP.
Before I could install JB4, I had to remove the JB+ chip that I thought was in the car. I removed the whole intake assembly but found no trace of the chip. I assumed the previous owner lied about it and continued on with the JB4 installation. Once I popped the ECU box open, I saw wires with electrical tape and some sort of aftermarket box with a toggle switch connected to it.
Since I was confused, I posted up a few pictures on N54tech and Terry identified it as a really old version of a pin-out JB3 tuner. The toggle switch was in the “off” position, so he advised me to carefully remove the harness and plug the wires back into the factory ECU connectors.
UPDATE: After putting even more miles on my N54, I wanted to do this job again. Instead of paying a shop, I bought the supplies and did it myself. I wrote a BMW Walnut Blast DIY so you can do the same!
Since I bought the car with about 81,000 miles and the intake valves had never been cleaned, I knew it was due for a walnut blasting. After a brief search through the forums, I found many Midwest N54’ers were happy with A-Spec Tuning in Schaumburg, Illinois. I found their Facebook page and sent them a message. Sean quickly responded and we set up an appointment to get it done for only $300! Considering the local dealership wanted $900, I had no problem making the drive.
My girlfriend and I set out at about 7:30 AM on Thursday morning, filled up with gas, and arrived right on time for my 10:30 AM appointment. Not a bad 3 hour drive. Sean greeted me as I pulled up and we chatted for a bit. I asked him if he could drop us off at the local Starbucks while they worked on the car because they didn’t have a waiting area. After taking advantage of Starbucks’ free Wi-Fi and overpriced lattes, Sean picked us up about 3 hours later.
We got back to their shop and an E92 335i was on the dyno getting baseline numbers before getting its valves media blasted. Sean said I could get some before/after numbers on the dyno for an additional $100, but I decided not to. It would have been nice to see the power gains from the walnut blast, but I plan on putting that $100 towards JB4 and a pair of downpipes. Sean and I chatted for a while again and he knocked off $25 because it took a little longer than expected.
Brad (who used to work at VS Motorsports) did the walnut blast and took some before/after pictures of the valves. He sent them to me a couple days later and I couldn’t believe what I saw!
Wow! What a difference. Best $275 I’ve ever spent on maintenance. The car feels smoother and seems to have a little more torque.
Sean and Brad are great, honest guys. Sean was always making sure that I was a happy customer throughout the whole process. I would definitely recommend them if your direct-injection motor is in need of valve cleaning. I would have done this myself, but don’t have the special equipment and couldn’t pass up the price. I know I’ll be heading back for anything else that I can’t tackle myself (hint: LSD).
After lusting over the BMW 1-series for 3 years, I was finally able to get one of my own. On March 13th, 2014 I brought home a 2008 135i from Holland, MI. I am the 3rd owner and bought it with 81,523 miles.
Knowing that I would be keeping this one for a while, I needed to make sure it had everything I wanted.
6-speed, black interior, aluminium glacier-silver trim
Sporty lowered suspension
Electric memory sport seats
Multifunction ///M leather steering wheel
Shadow line exterior trim
Raised top-speed limiter
Cold Weather Package
Rear seat armrest
HiFi Professional Sound System (Logic7)
Adaptive Xenon headlights
Rear parking sensors
6-piston Brembo Big Brake kit
Electric glass sunroof/moonroof
6-disc CD changer & DVD player
Rain sensing windshield wipers
Windshield with grey wedge
Never equipped with 135i badge from factory
Additional cup holder
Warning triangle & first aid kit
Modifications it came with:
BMW Performance short shift kit and knob
Riss Racing stainless-steel 3″ catback exhaust
Riss Racing oil catch can
K&N drop in air filter
Black Style 264 wheels with 225/40/18 Blizzaks
Eibach Pro-Kit springs (~1″ drop front & rear)
BMW Performance black front grilles
Black/white BMW emblem overlays
Carbon fiber wrapped interior trim
Tinted windows (30% front, 15% rear)
Tinted side markers
LED license plate lights
Modifications, DIY Guides and Build Log of my 2008 BMW 135i (E82 1-Series)