m5board.comoholic (>1000 posts)
Join Date: Feb 2007
Location: Atlanta, GA
Thanked 316 Times in 215 Posts
I'll save you the trouble of sending me a PM. As far as sound, no difference. It is tough to qualify the power increase as I got the intakes over the summer when temps here in Atlanta reached the 90's, so difficult to compare to how I was before the intakes when the temp was cooler. I did a wheel horsepower test on my Perfomance Box, however, which showed about a 20 horsepower increase. I can tell you that member OTDoc (who also has the intakes and software) and I both ran against his brother with a Z06 and fared surprisingly well from 0-60; I am certain I would have been demolished when my car was completely stock. My best 0-60 MPH run on my Performance Box (prior to the intakes) when I had Dinan TB's, stage 2 software, exhaust, and TB's and Yokohama Advan Sport tires was 4.3. Now that I have the intakes, stage 3 software, Michelin PS2's, and forthcoming high-flow primary cats with OEM headers, I plan to do another 0-60 run in the fall when the temp starts dipping in the 50's and 60's. If I get 4.0 or less I will be done (I think
I believe I need a better driver with a better launch technique to get the most of my car, however. On that note--hey M5Ranger, since I drove all the way down to Miami, it is your turn to take your beast up to Hotlanta and terrorize the exotics here.
2006 M5--Sapphire black/sepang
Dinan: free flow exhaust, Stage 3 engine software, high flow throttle bodies, high flow air mass meter/intake Assemblies, stage 2 suspension, 13% underdrive crankshaft pulley, 5.8 liter stroker engine, Dinan middle exhaust section, custom headers (I think I am finally done)
2011 Space Gray ZCP E92 M3; two-toned black and red interior; Dinan 4.6 liter stroker engine, intake, exhaust, midsection, pulley, and throttle bodies.