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e46 Coding/Tuning

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e46 Forced Induction

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by Bayern///M3

06-01-2026, 11:31 AM

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by bigjae46

05-15-2026, 05:12 AM

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Sticky: Dumb Question Thread - No Flaming Allowed by IamFODI Started by IamFODI, 09-12-2020, 08:07 AM	2,712 responses 61,748 views 1 like	Last Post by IamFODI Today, 05:19 PM
Sticky: e46 M3 Community-designed CAD files Master List by karter16 Started by karter16, 07-12-2024, 12:58 PM	93 responses 6,512 views 11 likes	Last Post by heinzboehmer 06-07-2026, 09:10 PM
Sticky: Welcome! Read this first by Obioban Started by Obioban, 03-19-2020, 12:18 PM	197 responses 7,312 views 29 likes	Last Post by IamFODI 05-28-2026, 12:55 AM
Sticky: e46 M3 Tire Sizing Thread by liam821 Started by liam821, 03-20-2020, 12:32 PM	92 responses 20,364 views 3 likes	Last Post by Paulo337 05-09-2026, 03:43 PM
Sticky: S54 Dyno Database by stash1 Started by stash1, 03-24-2020, 10:51 AM	546 responses 40,138 views 0 likes	Last Post by samthejam 03-25-2026, 05:16 AM
Sticky: e46 M3 Press/Media by Obioban Started by Obioban, 03-20-2020, 09:13 AM	123 responses 8,116 views 1 like	Last Post by Slideways 03-09-2026, 07:11 PM
Sticky: e46 M3 maintenance/lockdown thread by Obioban Started by Obioban, 04-08-2020, 09:13 AM	27 responses 13,222 views 3 likes	Last Post by e46life 10-31-2025, 11:48 AM
Sticky: DIYs by Obioban Started by Obioban, 03-26-2020, 06:57 AM	63 responses 12,618 views 5 likes	Last Post by Mystic03 10-27-2025, 05:00 AM
Sticky: e46 M3 torque spec thread-- every bolt on the car on diagrams by Obioban Started by Obioban, 03-20-2020, 08:56 AM	90 responses 24,541 views 10 likes	Last Post by elborikua 10-10-2025, 05:22 AM
Ohlins R&T for a track focus - Roll Stiffness Question by OldRanger Started by OldRanger, 08-25-2023, 08:14 AM	0 responses 118 views 0 likes	Last Post by OldRanger 08-25-2023, 08:14 AM
SMG pump priming noise with the salmon relay and 40A fuse removed? by sapote Started by sapote, 08-21-2023, 11:21 AM	15 responses 674 views 0 likes	Last Post by sapote 08-24-2023, 11:43 AM
loose door by Moi Started by Moi, 08-24-2023, 06:31 AM	2 responses 152 views 0 likes	Last Post by Moi 08-24-2023, 09:42 AM
Airbag recall by Mackshackm3 Started by Mackshackm3, 08-24-2023, 04:59 AM	4 responses 219 views 0 likes	Last Post by Mackshackm3 08-24-2023, 09:31 AM
Blistein b6 question by Mackshackm3 Started by Mackshackm3, 08-24-2023, 05:07 AM	2 responses 178 views 0 likes	Last Post by Mackshackm3 08-24-2023, 06:53 AM
Dual Mass or Single Mass Flywheel by rcarson25 Started by rcarson25, 09-02-2020, 05:57 AM	87 responses 5,883 views 0 likes	Last Post by EthanolTurbo 08-23-2023, 08:55 PM
Replacing control arm and tie rods, worth it or waste of $ by bavarian3 Started by bavarian3, 07-29-2023, 06:00 PM	16 responses 2,003 views 1 like	Last Post by bigjae46 08-23-2023, 06:38 PM
S54 Dry Sumped engine oil pressure problems by said Started by said, 08-17-2023, 06:02 PM	31 responses 1,257 views 0 likes	Last Post by BMWfanz 08-23-2023, 02:03 AM
RTAB Monoball Bushings Experience by maupineda Started by maupineda, 09-10-2020, 10:02 AM	28 responses 2,386 views 0 likes	Last Post by STAATS 08-21-2023, 10:48 PM
Need Help Determining Root Cause of Temperature Needle in Red - SOLVED by bimmerfan08 Started by bimmerfan08, 07-27-2023, 05:58 PM	48 responses 1,002 views 1 like	Last Post by c watson 08-21-2023, 10:08 PM
DIY - Cooling System Overhaul E46 M3 by bimmer Started by bimmer, 03-19-2020, 08:12 PM	12 responses 4,297 views 1 like	Last Post by M3Bob 08-21-2023, 05:16 PM
SuperSprint High Flow Cat Install by SGM330 Started by SGM330, 08-20-2023, 11:59 AM	10 responses 458 views 0 likes	Last Post by AWE46M3 08-20-2023, 09:06 PM
Oil temp over 210F while it's 105f /40c outside. Normal? by Amos Started by Amos, 08-16-2023, 05:42 PM	13 responses 738 views 0 likes	Last Post by bigjae46 08-20-2023, 07:22 AM
E46 CSL diffuser recommendations by Mackshackm3 Started by Mackshackm3, 08-17-2023, 06:27 PM	3 responses 910 views 0 likes	Last Post by Mackshackm3 08-19-2023, 02:00 AM
1:1 CSL GT Diffuser by Epoustouflant Started by Epoustouflant, 01-02-2023, 04:03 PM	10 responses 445 views 0 likes	Last Post by Epoustouflant 08-18-2023, 07:49 AM
Any experience passing smog with Euro Cats? by dustyice Started by dustyice, 04-24-2023, 12:10 PM	19 responses 1,190 views 0 likes	Last Post by M3_HTX 08-18-2023, 06:42 AM
Exhaust Vibration Sound While Engine Under Load by Doost Started by Doost, 02-26-2021, 10:06 AM	4 responses 647 views 0 likes	Last Post by Dr23 08-18-2023, 05:54 AM
Powerflex Rear Subframe Bushing Inserts / Interesting Article by PSUEng Started by PSUEng, 08-15-2023, 03:29 PM	4 responses 314 views 0 likes	Last Post by bigjae46 08-17-2023, 04:38 PM
Brushed Aluminum Refinishing by Ubaderb Started by Ubaderb, 08-17-2023, 12:48 PM	3 responses 445 views 0 likes	Last Post by mtpktz 08-17-2023, 03:40 PM
Modine radiators back instock by Cronenberged Started by Cronenberged, 01-04-2023, 02:43 PM	41 responses 1,658 views 2 likes	Last Post by HennyM3 08-17-2023, 03:16 PM
Known Issues Inquiry - Swapping MSS54 to MSS54HP and Back for Smog by AWE46M3 Started by AWE46M3, 08-11-2023, 06:26 PM	11 responses 1,031 views 1 like	Last Post by AWE46M3 08-17-2023, 08:18 AM
Temp gauge needle sits high, how to reset? by BigRussia Started by BigRussia, 12-21-2020, 04:52 AM	12 responses 2,163 views 0 likes	Last Post by 0-60motorsports 08-16-2023, 11:07 PM
Car shuts off by MotorSportThree Started by MotorSportThree, 08-14-2023, 10:20 AM	16 responses 369 views 0 likes	Last Post by heinzboehmer 08-16-2023, 10:10 PM
No bass with OTA radio and Android Auto Pandora app, but plenty via YouTube by CybrSlydr Started by CybrSlydr, 08-14-2023, 06:11 PM	5 responses 521 views 0 likes	Last Post by ugaexploder 08-16-2023, 08:09 AM
Finally! My LSB M3 is almost fixed by F2468c Started by F2468c, 08-12-2023, 07:13 PM	6 responses 468 views 0 likes	Last Post by gaiakai 08-16-2023, 06:15 AM
Best way to remove old headliner glue/foam? by Nate047 Started by Nate047, 08-14-2023, 11:39 AM	10 responses 2,348 views 0 likes	Last Post by Nate047 08-15-2023, 08:13 PM
HVAC shop recommendations in NJ or NY area ? by Leafsrule531 Started by Leafsrule531, 08-14-2023, 07:42 PM	1 response 78 views 0 likes	Last Post by Leafsrule531 08-15-2023, 02:19 PM
AC stopped working - large leak? by Leafsrule531 Started by Leafsrule531, 08-13-2023, 05:37 PM	7 responses 460 views 0 likes	Last Post by sapote 08-14-2023, 08:35 PM
Question for people with the Radium fuel rail and pressure gauge by Ramps Started by Ramps, 09-28-2020, 11:54 AM	9 responses 468 views 0 likes	Last Post by Advorsor 08-14-2023, 01:47 PM
PSA - Lifetime Replacement by DJAM3 Started by DJAM3, 08-07-2023, 10:46 AM	44 responses 1,148 views 1 like	Last Post by Slideways 08-14-2023, 11:34 AM
Interior swap questions by bavarian3 Started by bavarian3, 08-11-2023, 01:39 PM	5 responses 201 views 0 likes	Last Post by 9kracing 08-14-2023, 10:43 AM
Sharing E46 M3 Marketing Collateral, DIYs, & Technical Docs by bimmerfan08 Started by bimmerfan08, 08-14-2023, 05:38 AM	0 responses 181 views 8 likes	Last Post by bimmerfan08 08-14-2023, 05:38 AM
Windshield trim….what am I doing wrong? by Mackshackm3 Started by Mackshackm3, 08-12-2023, 03:07 AM	7 responses 264 views 0 likes	Last Post by Arith2 08-14-2023, 04:57 AM
Lumpy idle only after hot start by Phoenix///M3 Started by Phoenix///M3, 07-20-2022, 03:08 PM	6 responses 339 views 0 likes	Last Post by ChapterM3 08-13-2023, 06:51 PM
Cluster Replacement by 9kracing Started by 9kracing, 08-10-2023, 12:46 PM	10 responses 791 views 0 likes	Last Post by George Hill 08-13-2023, 06:38 AM
Transmission leaking oil at case joints by cobra Started by cobra, 08-23-2021, 07:40 PM	36 responses 2,912 views 0 likes	Last Post by nuc1 08-12-2023, 07:19 PM
Whilteline FCAB installation question by E46m3zcp Started by E46m3zcp, 08-12-2023, 08:48 AM	7 responses 205 views 0 likes	Last Post by E46m3zcp 08-12-2023, 11:05 AM
Extended wheel lug failure after less than two years by Pklauser Started by Pklauser, 07-30-2023, 06:21 AM	36 responses 818 views 0 likes	Last Post by Arith2 08-11-2023, 05:31 AM
Floor drain plug rust repair by timmo Started by timmo, 06-12-2021, 12:15 PM	7 responses 2,609 views 0 likes	Last Post by bmwfnatic 08-11-2023, 03:41 AM
Transmission popping out of gear - fixed! by Amos Started by Amos, 03-27-2023, 05:25 PM	6 responses 1,189 views 3 likes	Last Post by jayjaya29 08-10-2023, 03:41 AM

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E46 (2001 - 2006)