Dinan Stage 3 being installed Monday...exhaust and software
Dinan's Free Flow Exhaust improves exhaust flow by reducing back pressure, resulting in increased power output and a great sporty sound that is civilized when you want it to be and pleasantly aggressive under harder acceleration with zero drone. 100% stainless steel construction and exacting specifications ensure that the system fits correctly using the factory hangers and will resist corrosion for years to come. An vacuum controlled butterfly valve is utilized to improve flow at wide open throttle while keeping things civilized and "drone" free throughout. The design reduces overall weight as well and ships without tips so that it may attach to the stock tips giving a stock look.
100% 304 Stainless Steel Construction
Keep Stock Look
Get the most out of your performance exhaust upgrade by receiving an additional 10 horsepower from the combination of the Performance Exhaust Software and the Free Flow Exhaust. This software upgrade was specifically designed and tuned for the Free Flow Exhaust upgrade. Increase power while listening to a great sounding exhaust.
Benefits of the Performance Software - Free Flow Exhaust:
+ Add 10 Horsepower when used in conjunction with the Free Flow Exhaust
+ Downloads through the BMW diagnostic port, the same way BMW loads software
+ Top Speed Governor Removed, you decided how fast you want to go
+ Factory Matching Warranty Coverage (4year/50,000 mi), no sleepless nights or being scared to visit a BMW dealer
+ Full Map Rescaling, for drivability from idle to wide open throttle and everywhere in between
+ Properly Returned Fuel Mixtures, to save you gas and protect your engine
+ Retain All BMW Factory Engine Damage Safeguards
+ No Shipping! Available at ALL +130 Dinan Dealers Around the World
I will take video clips of before and after.
Yay cant wait, although my poor mans 7 has no dinan mods available, I can watch with excitement for you!:rofl::thumbup:
Stage 3 installed with exhaust
I have a '12 7 series with Dinan stage 2, which had to be reinstalled after dealer erased during software upgrade recently. After the reinstall, I noticed a definite throttle lag, almost a two-step process during light acceleration that wasn't there before. Dinan said that this was due to the vehicle adapting after the complete software reinstall. I never noticed that the first time around however. Now that I installed the stage 3 with exhaust, there is no lag on the 7 whatsoever so I'm not sure that I'm buying the compatibility of stage 2 with the new BMW software. Unfortunately, I couldn't dyno the 7 as it's a long wheelbase X-Drive, and would not fit on their four-wheel-drive dyno. The car drives even better with stage 3 and the exhaust note is nice but not over bearing!
On a side note, and since nobody has posted actual dyno numbers yet... I also just had Stage 3 installed on my '12 650iC. Had car dyno'd before and after and assuming same engine in both here are the results;
Stock: 328 WHP on dyno, 18% loss to wheels equates to 400 hp stock at the flywheel
Stage 3: 457 WHP on dyno. :) Calculates to 539 hp at flywheel, with Dinan exhaust
I will post the pull sheets w torque once I get them next week.
I can tell you the results are very impressive on the lighter 650i and traction control kicks in between all gear shifts at WOT to stop wheel spin. :)
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