You will not go wrong with either product. It requires some tools, some mechanical ability and some willingness to take your car apart. It is more bang for your buck.Īs others have said, the JB4 is not the easiest to install. I like the flexibility, control ability and useability of the JB4. I have been in several n54 cars, some with cobb and some with JB4. With that said, my research, experience with other customers and knowing how excellent the customer service is at BMS, I purchased the JB4. Their product is excellent, their customer service is good and it truly the easiest product to install. I have come from a Subaru background where COBB Accessports are pretty much the standard. I have access to pretty much anything at dealer cost and sometimes lower. I work in the automotive performance industry. Just grabbed an 08 335i with sport and premium package, under 40k miles in Titanium Silver. Many JB4 users are running blends safely on current maps and getting great results.Īnyway, there's my unbiased reasoning - I don't own either product (yet).įirst off, I am new here. * E85 - COBB hints at support, but Terry is actually coding support in now.
I posted a question on the COBB forums several months ago that never was answered
* support - Terry is on the boards all the time answering posts. * features - switching maps on the fly is cool I never used most of the stuff on the Subaru AP * safety - lots of cars with 10's of thousands of miles with no issues * cost - JB4 and DCI is significantly less than an AP alone Having said that, I'm leaning strongly towards the JB4 if/when I get bored with the tune on my is. The tunes are generally safe, and in the case of the STi, the COBB tune was safer than the overly lean OEM tune that was done to comply with increased CAFE regs.
Both were stage one setups, run for 20-30k miles on the cars using off the shelf maps. I can't speak to the COBB products on the N54, but I ran their AccessPORT product on a 2.0L WRX and a 2010 STi. Please click here for more information on legal requirements related to use of BMS parts. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. Home of the JB4 the worlds most popular turbocharged tuning system!
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