Quote:
Originally Posted by Willizm
It's hard to compare because the 335xi 6AT is a good 600lbs heavier than the 135i 6MT plus the 1er is stock outside of the DCI. I'm happy with both at the moment. The 135i is such a quick car with just a tune, intake and e85. The cobb PTF e85 map for my 335xi is really powerful as well, but all that weight isn't helping me even with the added bolt ons. Not that I really care either as it's my daily driver and pretty damn quick at that. I decided to put the g5 on my 135i so I can take advantage of the gauge hijack, NLS, and 2step feature since I have a manual with no boost gauge unlike the p3cars one that I have in my 335i.
I'm happy with both, but can't say with certainty which is better as they are in completely different cars. the G5 is by far the smoothest tune i've ever had in a juicebox
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I hear you about the added features of the JB4 that simply cant be matched by the COBB. Max cool down mode and auto tuning is great. That is what has me leaning towards the JB4. I need to tune mine as soon as im done with the aero work.