135i Turbo Engine (N54 / N55), Exhaust and Drivetrain Modifications - BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)

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135i Turbo Engine (N54 / N55), Exhaust and Drivetrain Modifications

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	Rating Thread / Thread Starter	Last Post	Replies	Views
	Sticky: 2007 Engine Tech: How the N54 turbo engine works (must read!!!) ( 1 2) Harold	04-06-2026 01:30 PM by Sourd9	36	143,177
	Sticky: My DCT lag, idle issue, and lurching problems. ( 1 2 3 4 5) zx10guy	12-04-2024 07:59 PM by homewrecker07	89	103,851
	Sticky: Anyone know what the inside of the PE muffler looks like? ( 1 2 3 4 5 ... Last Page) e36addict	06-22-2023 10:38 PM by Sapper	125	176,989
	Sticky: Warning to those post 03/08 build 135i owners wanting to tune ( 1 2 3 4 5 ... Last Page) mikeo	04-15-2023 05:40 PM by Pot_Pie_35i	190	271,383
	Sticky: DIY installing N55 mid pipes on a N54... ( 1 2 3 4 5 ... Last Page) Dackelone	09-16-2022 12:46 AM by uzone02	163	252,795
	Sticky: calling all 6MT SSK guys... ( 1 2 3 4 5) Dackelone	09-08-2022 09:58 PM by Cadubya	104	135,200
	Sticky: fluid change 135i dct transmission, pentosin vs ravenol ( 1 2) Alcor	01-29-2022 08:13 PM by ryokeley12	32	68,744
	Sticky: N55 Engine Full Technical Info and Service Information Manual Jason	01-28-2022 08:23 AM by Veriz	16	61,630
	Sticky: Updated DME software and got fun noises.. ( 1 2 3 4 5 ... Last Page) e36addict	12-09-2021 11:59 AM by Joe@TopGearSolutions	376	289,787
	Sticky: New CEL and Engine Malfunction... This car will be the death of me ( 1 2 3 4) Matticus91	09-28-2021 12:58 PM by Tallicia	78	132,302
	Sticky: photos of the HPFP from BMW AG engine model... ( 1 2) Dackelone	06-19-2021 10:25 AM by mistacarder	38	47,805
	Sticky: Official 135i Exhaust Sound Clip Thread ( 1 2 3 4 5 ... Last Page) NY SLC 93	06-16-2020 09:30 PM by b3turbo	500	390,653
	Sticky: UUC magnetic oil drain plug... ( 1 2 3 4 5) Dackelone	08-19-2019 07:42 PM by Dackelone	94	130,233
	Sticky: DCT delay fixed ( 1 2 3 4 5 ... Last Page) elzorro4	05-28-2019 10:22 PM by SoFloE82	112	142,149
	Sticky: 135i: ZF or Getrag auto transmission? ( 1 2 3) winthorp	04-21-2018 06:03 PM by ShocknAwe	47	82,228
	Sticky: More N55 info ( 1 2 3 4 5 ... Last Page) scs	04-03-2014 05:38 PM by bradleyland	171	294,602
	Sticky: Useful Warranty Information.(A must read if you have mods) ( 1 2) Riss Racing	02-25-2014 08:33 PM by johngrossi	42	101,323
	Sticky: N54 Technical Service Bulletins mikeo	11-05-2008 02:28 PM by mikeo	2	57,515
	Sticky: NHTSA High Pressure Fuel Pump Investigation atr_hugo	08-05-2008 07:06 AM by atr_hugo	0	46,299

	N55 PWG Boost leak test, what am I doing wrong ? timchump	Yesterday 11:41 PM by houtan	4	43
	135i new exhaust - opinions needed WilsoN55	Yesterday 06:35 PM by Varen	12	2,606
	Misfire and IAT error E13	05-06-2026 10:50 AM by E13	5	356
	Oilless and Waterless Turbo? 3nigma	05-05-2026 08:31 PM by 3nigma	9	278
	Installation (and coding?) of N55 Powerkit scaramanga	05-05-2026 04:55 PM by scaramanga	0	25
	Battery Relocation Mod (for quad exhausts) Sapper	04-27-2026 07:25 PM by Sapper	0	81
	Overheating warning but car isn't actually overheating? ( 1 2 3) Odin2347	04-26-2026 07:35 PM by Buffox	45	154,202
	Unbelieveable NorthernDancer	04-26-2026 04:08 PM by ShocknAwe	2	169
	ECS Muffler delete Cat Back E82dude1	04-21-2026 03:06 PM by E82dude1	0	82
	Lose power as engine heats up ( 1 2) sonicgrounds	04-11-2026 04:37 PM by ShocknAwe	27	8,585
	e88 n55 dct xhp creep modes mwpa71	04-10-2026 09:04 AM by MParallel	10	6,562
	Fuse Diagram for part# 9119444... Fuse panel is buzzing cprovenzo	04-08-2026 06:30 AM by cprovenzo	1	93
	terminal 87 3 location semeoneor	04-08-2026 03:18 AM by tpl.mallon	9	8,530
	OEM manual shifter alternatives for N54 135i lucadenhez	04-06-2026 12:18 PM by blackburn-hero	3	1,045
	N55 Clutch replacement tutorial? NickD	03-30-2026 07:00 AM by moose09876	3	350
	S55 Oil Pan Swap - Power Steering Pump Brackets uhhh_maks	03-25-2026 12:30 PM by jayson	14	1,778
	Bottom mount single turbo 135i ThisBeLuke	03-17-2026 10:56 PM by ThisBeLuke	0	216
	Replace rear main seal while doing clutch? NickD	03-17-2026 10:00 AM by ShocknAwe	5	208
	Got a N55 noise I need help with ( 1 2) neepertech	03-16-2026 01:27 AM by e82hud	31	11,130
	Differential Compatibility pyshin	03-15-2026 04:36 PM by pyshin	4	194
	125i to 135i? jamiewalkaa	03-14-2026 01:59 PM by kashikoi	14	330
	Replacement Motor Jomammaa	03-10-2026 04:10 PM by blackops23	3	4,821
	Motion Raceworks Catch Can(N54) JSF1	03-10-2026 05:23 AM by JSF1	0	415
	Low Oil Pressure Alert and Oil Control Valve code 3408 Kartpilot	03-08-2026 07:53 PM by jjmmarr	4	3,288
	Vanos 0x2E0F too frequent adjustment error timchump	03-07-2026 02:26 AM by timchump	0	1,021
	Cracked intake tubing khastopher	03-03-2026 11:30 PM by itranyesterday	3	663
	N55 Clutch/Flywheel opinions NickD	03-03-2026 07:24 AM by moose09876	1	649
	Racing Dynamics Short Shifter N55 NickD	03-02-2026 02:43 PM by NickD	0	644
	N54 making 0 boost after vaccum lines, solenoid, and CP e82.real	03-01-2026 11:20 PM by e82.real	0	673
	2BC0 error keeps coming back Ronaldk82	03-01-2026 01:46 PM by az335imsport	2	4,748
	Battery replacement isn't cheap ( 1 2) Adam135	02-28-2026 12:15 PM by GoRomeo	31	37,833
	Radiator fan going full speed + poor power, could it be a bad battery problem ? ( 1 2) studio54	02-25-2026 11:18 AM by GoRomeo	34	18,555
	Could use help with n54 rear inlet install - actuator question edisapimp	02-21-2026 09:06 AM by edisapimp	1	506
	Is it possble to use the GS6-53BZ (n54 trans) on a N55? cficare68	02-18-2026 07:36 AM by Keviendo	17	14,087
	Rattle/Scratching noise from the Transmission(Updated with video) Solo_M_Tech	02-18-2026 05:15 AM by moose09876	20	9,815
	Semi S55 oil pump upgrade deyrag	02-06-2026 04:10 PM by Creations_cult	1	826

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