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Go Back   E46Fanatics > Tuning & Tech > Driveline, Engine & DME Tuning

Driveline, Engine & DME Tuning
Talk about driveline improvements, NA tuning and DME tuning your E46 BMW here. This includes diffs, intakes, exhausts, chips, software and OBD tuning.

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Old 11-28-2010, 01:26 AM   #1
thatoneguysmells
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Join Date: Nov 2010
Location: San Diego
Posts: 42
My Ride: 05' E46 M3
E46 M3 Supersprint Exhaust questions

What's up fellow E46ers. I have some questions about an Intake/Exhaust/Header/Injector combo that I want to install on my 05' M3. The setup would be as follows:

Full Supersprint Exhaust Installed including the Flanged Stepped Headers, Metallic Cats, Resonated Section 2, and Race Rear Muffler. Other modifications installed are the AFE Stage 2 Pro-Dry S Intake Kit, and Jim Conforti Shark Injector tailored to all of the before mentioned modifications.

This was a project car done by some guys on you tube, they claim:

The final Dyno Numbers were 301.4 WHP, 226.59 WTQ

with a stock baseline average of 268 WHP and 209 WTQ.

Looks like a pretty legit increase in power. I want to do this but my big question is, will this be LEGAL in CA? Will I be able to pass smog? What happens if I get pulled over with these modifications?
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Old 11-28-2010, 06:54 PM   #2
beepers90
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Join Date: May 2007
Location: WCU/Davidson NC
Posts: 210
My Ride: 04 325,MBkomp,vw,xj
I heard stories of one member who got pulled over and they gave him a fix it ticket and if he didnt fix it they will take your car
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Old 12-04-2010, 05:13 PM   #3
68
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Join Date: Nov 2006
Location: Bay Area
Posts: 102
My Ride: 2006 BMW M3
Quote:
Originally Posted by thatoneguysmells View Post
What's up fellow E46ers. I have some questions about an Intake/Exhaust/Header/Injector combo that I want to install on my 05' M3. The setup would be as follows:

Full Supersprint Exhaust Installed including the Flanged Stepped Headers, Metallic Cats, Resonated Section 2, and Race Rear Muffler. Other modifications installed are the AFE Stage 2 Pro-Dry S Intake Kit, and Jim Conforti Shark Injector tailored to all of the before mentioned modifications.

This was a project car done by some guys on you tube, they claim:

The final Dyno Numbers were 301.4 WHP, 226.59 WTQ

with a stock baseline average of 268 WHP and 209 WTQ.

Looks like a pretty legit increase in power. I want to do this but my big question is, will this be LEGAL in CA? Will I be able to pass smog? What happens if I get pulled over with these modifications?
yeah, it is legit.. however, you might want to consider these randomtech (section 1/cats) so you will at least pass the sniffer test.. secondly, consider keeping your heavy rear muffler so you can keep the noise down. (most of the hp gain is from the headers/section1 anyway... check these cats out. http://store.vacmotorsports.com/race...ers-p2255.aspx
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