Muffler

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Category: Exhaust System

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Revision as of 06:38, 29 October 2025 ddgonzal (Talk | contribs) (->Arms) <- Previous diff		Revision as of 03:20, 31 October 2025 ddgonzal (Talk | contribs) Next diff ->
Line 7:		Line 7:
	<br>{{Album-|26085}}		<br>{{Album-|26085}}
-	Original mufflers came with integrated '''exhaust pipe''' - Bottom (old) is the factory piece. This pipe was part of the muffler.	+	Original mufflers came with integrated '''tail pipe''' This rear-most pipe was part of the muffler. Aftermarket replacement mufflers usually had a separate tail pipe to reduce shipping costs.
	<br>{{Album|22334}}		<br>{{Album|22334}}
-	The muffler should flow at least 2.2 cfm per flywheel HP. For a 69 hp A12, that is 152 cfm, easily achieved with the factory 1-1/2 inch [[Exhaust Piping|piping]].	+	The muffler should flow at least 2.2 cfm per flywheel HP. For a 69 hp A12, that is 152 cfm, easily achieved with the factory 36mm [[Exhaust Piping|piping]].
	Muffler is located just in front of the [[Rear Axle]]		Muffler is located just in front of the [[Rear Axle]]
Line 42:		Line 42:
	Nissan JDM Catalog		Nissan JDM Catalog
	20010-H1000 TUBE ASS'Y-exhaust, front - ALL (exc. GX, Automatic)		20010-H1000 TUBE ASS'Y-exhaust, front - ALL (exc. GX, Automatic)
-	{{Album|19077}}
	20010-H1020 TUBE ASS'Y-exhaust, front - Automatic		20010-H1020 TUBE ASS'Y-exhaust, front - Automatic
	20010-H2301 TUBE ASS'Y-exhaust, front - GX 4-speed		20010-H2301 TUBE ASS'Y-exhaust, front - GX 4-speed
Line 57:		Line 56:
	20630-18000 RING-rubber, muffler clamp (2)		20630-18000 RING-rubber, muffler clamp (2)
	20620-H1000 CLIP-tube, exhaust		20620-H1000 CLIP-tube, exhaust
-	{{Album|31087|was=Datsun%201200/Parts2/20620-H1000.jpg}}
	06915-43810 WASHER-plain (2)		06915-43810 WASHER-plain (2)
	08915-13810 WASHER-lock		08915-13810 WASHER-lock
Line 63:		Line 61:
	08911-10810 NUT		08911-10810 NUT
	20640-18000 STRAP-exhaust hanger		20640-18000 STRAP-exhaust hanger
-	{{Album|25604}}
	20641-18000 WASHER-plain (2)		20641-18000 WASHER-plain (2)
	08911-10810 NUT (2)		08911-10810 NUT (2)
Line 76:		Line 73:
	20321-H2000 FINISHER-EXHAUST (chrome extension) NLA		20321-H2000 FINISHER-EXHAUST (chrome extension) NLA
	20321-H2500 FINISHER-EXHAUST (chrome extension) $18.36 NLA		20321-H2500 FINISHER-EXHAUST (chrome extension) $18.36 NLA
		+
		+	== Clamp ==
		+	When it's time to fit the muffler to the exhaust pipe, the muffler inlet tube slips over the exhaust pipe coming from the front of the car.
		+	<br>{{UploadPost|174_6901ce28606ac.jpg|499091}}
		+
		+	This clamp tightens it down with an M8 bolt
		+
		+	{{UploadPost|174_690296d3a4b76.jpg|499094}}
		+	{{searchPart|20620-H1000}} CLIP-tube, exhaust
		+	replaced by
		+	{{searchPart|20643-B5000}} CLAMP-exhaust tube (from 1973-11)
		+	{{Album|31087|was=Datsun%201200/Parts2/20620-H1000.jpg}}
		+
		+	Alternative, you may use a 1.5" muffler u-bolt.
		+
		+	To make sure the exhaust seals, use the factory Datsun muffler seal in the exhaust pipe groove
		+
		+	{{searchPart|20720-N2226}} EXHAUST TUBE SEALANT
		+
		+	or a tube of generic muffler sealant:
		+	<br>{{UploadPost|174_690290aa1cd2b.jpg|499094}}
		+
		+	== Muffler Stopper ==
		+	The rubber muffler stopper prevents the muffler from banging against the floor panel.
		+
		+	{{searchPart|20635-18000}} STOPPER-muffler
		+	* B10 (all except earliest)
		+	* B110
		+	{{UploadPost|174_69025583b1da5.jpg|499093}}
		+
		+	Early B210 to 1975 and all VB210 use the similar 610 bumper {{searchPart|20635-K0101}}
		+
		+	== Rubber Hangers ==
		+	These factory parts make your exhaust absolutely quiet. With an original muffler, you couldn't hear the engine idling
		+
		+	{{search|Datsun+1200+rubber+exhaust+muffler+hangers+rings|Google search}} and {{search|%E3%82%B5%E3%83%8B%E3%83%BCB110%E3%83%9E%E3%83%95%E3%83%A9%E3%83%BC%E3%82%B4%E3%83%A0%E3%83%8F%E3%83%B3%E3%82%AC%E3%83%BC|japanese search}}
		+
		+	The muffler clamp RINGs and the hanging STRAP take all the vibrations out. Generic versions of these parts work OK
		+	<br>{{UploadPost|174_6901a1f013f44.jpg|499088}} {{UploadPost|174_6901a2010130e.jpg|499088}}
		+
		+	The rubber hangers have B10 Datsun 1000 part numbers
		+
		+	26030-18001 RING-rubber, muffler clamp
		+
		+	Early B210 to 1975 (including 120Y) looks the same, but as usual has an H50 part type, so they may be slightly different. Oh, by the way, when you get new ones, they seem too small. But they stretch to fit
		+
		+	{{searchPart|26030-H5000}} RING-rubber, muffler clamp 30x39mm inside diameter, 13mm diameter
		+
		+	Datsun 910/S110 Silvia and Nissan R30 Skyline/C31 use similar rings, but they are thicker (15 mm). Nissan {{searchPart|20630-N8200}}
		+
		+	Buy at [[Bprojects]] or [https://datsun1200.jp/index.php?dispatch=categories.view&category_id=27 https://datsun1200.jp]
		+
		+	{{Album|25604}}
		+
		+	The strap (rectangular) rubber hanger uses M8 bolts and washers. It would be easy to make one, with some kind of heat-resistent material: 90x30x12mm with 2 M8 holes on 60mm centers. Or get one off a 280ZX, 810 Maxima, Urvan, Vanette, 240Z or 510/610/710 {{searchPart|20640-18000}}
		+
		+	= Original Muffler =
		+	{{Album|19077}}
		+
		+	The muffler connects to the [[Exhaust Manifold]]
		+	<br>{{Album|31096}} {{Album|31095}} {{Album|31093}}
		+
		+	B210 muffler looks identical to the B110 part, but is a little longer at 329mm (1-3/8" longer than B110). There is plenty of room in a B110 sedan for this. this one conveniently has the tailpipe cut off for storage and shipping.
		+
		+	20100-H5000 B210 NICHIRA muffler 229 x 205 mm
		+	<br>{{UploadPost|174_6901cdb253e98.jpg|499091}} {{UploadPost|174_6901ce5c8e001.jpg|499091}} {{UploadPost|174_6901cdee08dd2.jpg|499091}} {{UploadPost|174_6901ce44482f5.jpg|499091}} {{UploadPost|174_6901cdfbdb28f.jpg|499091}} {{UploadPost|174_6901ce10d5f84.jpg|499091}} {{UploadPost|174_6901ce28606ac.jpg|499091}}
	= Aftermarket Replacements =		= Aftermarket Replacements =
		+	Matuko muffler MB-067 for [[VB110]], equivalent to Nissan 20100-H1400
		+	<br>{{UploadPost|174_6903d425518c7.jpg|499097}}
		+
		+	HST muffler 026-14 for B210 with A12/A14/L16 engines {{web|www.hst-muffler.com/html/products2.html|hst-muffler.com}}
		+	<br>{{UploadPost|174_69015e01097b9.jpg|499087}}
		+
		+	Toyo N-150 Gold Muffler
		+	<br>{{UploadPost|174_690250ae91b0b.jpg|499091}}
		+
		+	= Aftermarket Alternatives =
	== Aftermarket 1.5 ==		== Aftermarket 1.5 ==
	* Dynomax 17700 ("Thrush turbo"),similar shape to stock. Oval 3.25 in. x 7.75 in. Case Length: 11 in. Overall length: 16 in. Width: 7.750 in. Thickness: 3.25 in.		* Dynomax 17700 ("Thrush turbo"),similar shape to stock. Oval 3.25 in. x 7.75 in. Case Length: 11 in. Overall length: 16 in. Width: 7.750 in. Thickness: 3.25 in.
Line 147:		Line 220:
	{{AlbumH|16569|jpg|300}} {{Album|21118}}		{{AlbumH|16569|jpg|300}} {{Album|21118}}
-	== Stealth ==	+	= Finisher =
		+	{{searchPart|20321-H2500}} FINISHER-exhaust - GL, GX
		+
		+	For sharp looks, you can fit a stainless extension which looks good forever. Needs to fit a 1.5 inch pipe, and while most aftermarket tips are larger they fit a range of smaller pipe sizes.
		+
		+	or a cheaper chrome tip like this factory B110/B210 option, which looks fabulous for a few years
		+	<br>{{Album|31086}}
		+
		+	This is a vintage Nissan Muffler Cutter with part number 20321-H2500. It is a new old stock (NOS) part, meaning it is an original, unused part from a past production run.
		+	* This type of part is often sought after by collectors and restorers of classic Datsun and Nissan vehicles.
		+	* The packaging indicates it is a genuine Nissan part.
		+	* The item is a chrome exhaust tip, designed to be fitted to the end of the tailpipe
		+
		+	20321-H2500 Muffler-Cutter &#12510;&#12501;&#12521;&#12540;&#12459;&#12483;&#12479;&#12540; B110
		+	<br>{{UploadPost|174_6901d3b7e6a58.jpg|499090}}
		+
		+	{{UploadPost|174_6901d3d492c26.jpg|499090}} {{UploadPost|174_6901d3f3f06af.jpg|499090}} {{UploadPost|174_6901d401929a3.jpg|499090}}
		+
		+	= Stealth =
	For the sleeper look		For the sleeper look
	<br>{{Album|12687}} {{Album|12698}}		<br>{{Album|12687}} {{Album|12698}}
	[[Category:Exhaust System]]{{End}}		[[Category:Exhaust System]]{{End}}

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Revision as of 03:20, 31 October 2025

The Datsun 1200 used a 1.5 inch exhaust system with a very, very, very quiet muffler — the factory Datsun 1200 muffler was so quiet you couldn't hear the engine running at idle. The muffler included a permanently attached tail pipe.

Contents 1 Overview 2 Size 3 Part Numbers 3.1 Clamp 3.2 Muffler Stopper 3.3 Rubber Hangers 4 Original Muffler 5 Aftermarket Replacements 6 Aftermarket Alternatives 6.1 Aftermarket 1.5 6.2 Aftermarket 1.75 6.3 Can Muffler 6.4 Dual Outlet 6.5 Arms 6.6 Nismo 6.7 Finish Mufflers 6.8 Bush Mufflers 7 Finisher 8 Stealth

Overview

Exhaust Pipe, Muffler, Tail Pipe
Album 26085

Original mufflers came with integrated tail pipe This rear-most pipe was part of the muffler. Aftermarket replacement mufflers usually had a separate tail pipe to reduce shipping costs.
Album 22334

The muffler should flow at least 2.2 cfm per flywheel HP. For a 69 hp A12, that is 152 cfm, easily achieved with the factory 36mm piping.

Muffler is located just in front of the Rear Axle
Post 496137

Coupe & Sedan have the same muffler location, only the bend shape of the tailpipe portion differs a little. This bend allows the pipe to go over the rear axle.
Post 496141

The body of the muffler is suspended by two rubber rings and contributes to quietness of the exhaust system (there are no rattles from the exhaust).
Post 496141

Tailpipe exits at the rear, below the bumper
Post 496134

Size

Muffler measurements from my 1200 sedan with factory original muffler:

* 11-5/8" Shell length
* 8-1/4" Shell oval width
* 3-3/4" Shell oval height
* 1.5" front inlet, centered
* 1.5" rear outlet, on far left of oval

There is enough room under a sedan that a muffler about 2" longer may fit.

The 1200 GX exhaust system is finished with a small resonator and a muffler later on. The resonator terminates the air column at an exact lenght for optimum power, and also reduces harmonic noise.
Album 12778

A15E EGI dual exhaust (92 hp). This one has been modified to remove the muffler for racing where noise limits do not apply
Post 491958

Part Numbers

Nissan JDM Catalog
20010-H1000 TUBE ASS'Y-exhaust, front - ALL (exc. GX, Automatic)
20010-H1020 TUBE ASS'Y-exhaust, front - Automatic
20010-H2301 TUBE ASS'Y-exhaust, front - GX 4-speed
20010-H3400 TUBE ASS'Y-exhaust, front - GXA (GX Automatic)
20010-H7200 TUBE ASS'Y-exhaust, front - GX-5
20603-H2300 GASKET-exhaust tube - GX and GX-5
20602-27700 NUT-fixing, tube end (2) - ALL (except GX, GX-5)
20602-27700 NUT-fixing, tube end - GX-5
08915-13810 WASTHER-spring lock (3) - GX-5
20635-18000 STOPPER-muffler bound - ALL
20100-H1000 MUFFLER ASS'Y-with rear tube - Sedan
20100-H1400 MUFFLER ASS'Y-with rear tube - Van
20100-H2500 MUFFLER ASS'Y-with rear tube - Coupe
20630-18000 RING-rubber, muffler clamp (2)
20620-H1000 CLIP-tube, exhaust
06915-43810 WASHER-plain (2)
08915-13810 WASHER-lock
08110-85510 or 08110-86010 BOLT
08911-10810 NUT
20640-18000 STRAP-exhaust hanger
20641-18000 WASHER-plain (2)
08911-10810 NUT (2)
08915-13810 WASHER-lock (2)
08110-82210 BOLT (2)
20321-H2500 FINISHER-exhaust - GL, GX
20720-N2225 SEALER KIT-exhaust tube joint - ALL

USA Catalog
20010-H3100 ASSY-TUBE EXHAUST FRONT Sedan Manual Trans > 20010-H1000 $34.92
20100-H7001 ASSY-MUFFLER WITH REAR TUBE Sedan Manual Trans > 20100-H1000 $84.72 NLA
20321-H2000 FINISHER-EXHAUST (chrome extension) NLA
20321-H2500 FINISHER-EXHAUST (chrome extension) $18.36 NLA

Clamp

When it's time to fit the muffler to the exhaust pipe, the muffler inlet tube slips over the exhaust pipe coming from the front of the car.
Post 499091

This clamp tightens it down with an M8 bolt

Post 499094
20620-H1000ᴳ CLIP-tube, exhaust
replaced by
20643-B5000ᴳ CLAMP-exhaust tube (from 1973-11)
Album 31087

Alternative, you may use a 1.5" muffler u-bolt.

To make sure the exhaust seals, use the factory Datsun muffler seal in the exhaust pipe groove

20720-N2226ᴳ EXHAUST TUBE SEALANT

or a tube of generic muffler sealant:
Post 499094

Muffler Stopper

The rubber muffler stopper prevents the muffler from banging against the floor panel.

20635-18000ᴳ STOPPER-muffler
* B10 (all except earliest)
* B110
Post 499093

Early B210 to 1975 and all VB210 use the similar 610 bumper 20635-K0101ᴳ

Rubber Hangers

These factory parts make your exhaust absolutely quiet. With an original muffler, you couldn't hear the engine idling

Google searchᴳ and japanese searchᴳ

The muffler clamp RINGs and the hanging STRAP take all the vibrations out. Generic versions of these parts work OK
Post 499088 Post 499088

The rubber hangers have B10 Datsun 1000 part numbers

26030-18001 RING-rubber, muffler clamp

Early B210 to 1975 (including 120Y) looks the same, but as usual has an H50 part type, so they may be slightly different. Oh, by the way, when you get new ones, they seem too small. But they stretch to fit

26030-H5000ᴳ RING-rubber, muffler clamp 30x39mm inside diameter, 13mm diameter

Datsun 910/S110 Silvia and Nissan R30 Skyline/C31 use similar rings, but they are thicker (15 mm). Nissan 20630-N8200ᴳ

Buy at Bprojects or https://datsun1200.jp

Album 25604

The strap (rectangular) rubber hanger uses M8 bolts and washers. It would be easy to make one, with some kind of heat-resistent material: 90x30x12mm with 2 M8 holes on 60mm centers. Or get one off a 280ZX, 810 Maxima, Urvan, Vanette, 240Z or 510/610/710 20640-18000ᴳ

Original Muffler

Album 19077

The muffler connects to the Exhaust Manifold
Album 31096 Album 31095 Album 31093

B210 muffler looks identical to the B110 part, but is a little longer at 329mm (1-3/8" longer than B110). There is plenty of room in a B110 sedan for this. this one conveniently has the tailpipe cut off for storage and shipping.

20100-H5000 B210 NICHIRA muffler 229 x 205 mm
Post 499091 Post 499091 Post 499091 Post 499091 Post 499091 Post 499091 Post 499091

Aftermarket Replacements

Matuko muffler MB-067 for VB110, equivalent to Nissan 20100-H1400
Post 499097

HST muffler 026-14 for B210 with A12/A14/L16 engines hst-muffler.com☁
Post 499087

Toyo N-150 Gold Muffler
Post 499091

Aftermarket Alternatives

Aftermarket 1.5

• Dynomax 17700 ("Thrush turbo"),similar shape to stock. Oval 3.25 in. x 7.75 in. Case Length: 11 in. Overall length: 16 in. Width: 7.750 in. Thickness: 3.25 in.

1-1/2 pipe clamps:
* Merit M112 or U112
* Napa BK 7335325

Rubber Donut Hangers
* Merit 8166 ???

Aftermarket GX (is it the same as the S110 gasket?)
* Gasket: Merit 8696
* Pipe: (1981 Nissan 720), Merit 48316

Exhaust Tip - 1-1/2" diameter
* Merit 9821

Aftermarket 1.75

• Walker Super Turbo WLK-17771ᴳ
• Walker SoundFX 17909ᴳ 1.75" in/out 14x6.65 round case
• Dynomax 17771, 160 cfm
• Walker 17881 Pro-Fitᴳ, 1.75" offset/center
• Magnaflow 11123ᴳ with offset. Might be too long, it is 14" body, but it is Stainless Steel, best buy $123 in 2021
• Borla XR-1: BOR-40483ᴳ Stainless Steel, 1.75 in, 2.25 ex, 13x4.5 round case, turn-down outlet

Can Muffler

Hot-dog style mufflers (cannons or "fart cans") are mainly for looks. Having the muffler at the very end of the exhaust makes it louder, and most cans are fiberglass packed tubes ("glass-pack") which are by nature noisy. They are simply a straight-through pipe with baffles in the tube sides.

Album 2539 Album 2951 Album 4397 Album 21044

When fitting a can muffler, it is advised to also fit a large normal muffler under the car.
Album 17076

Dual Outlet

Post 492625

Arms

マフラー (アームズ）ᴳ
arms-eng.comᴬᴿᶜᴴᴵⱽᴱ

2025 prices
* Stainless: ~900 USD
* Titanium: ~1700 USD

ARMS - Side Muffler with stainless side tubes to fit 1200 ute. Volume 94db. Main pipe φ50, tail end φ50 (2" pipes). Dual slash cut or straight cut.

Album 25595 Album 25603 Album 25596 Album 25597 Album 24947

Nismo

"FISCO" and "NISMO" was fitted to Sunny Truck with A15

Album 25539 Album 25540 Album 25541

Finish Mufflers

Add a stylish stainless steel muffler at the end of a full exhaust system.

Album 21044 Album 18361 Album 18255 Album 13423

rotary style dumpy
Album 15642

straight-through "cannon" muffler (a straight pipe, peforated with holes and fiberglass-packed chamber) is VERY loud
Album 13422 Album 4131

Album 10512 Album 10511 Album 10513

Bush Mufflers

Album 16569 Album 21118

Finisher

20321-H2500ᴳ FINISHER-exhaust - GL, GX

For sharp looks, you can fit a stainless extension which looks good forever. Needs to fit a 1.5 inch pipe, and while most aftermarket tips are larger they fit a range of smaller pipe sizes.

or a cheaper chrome tip like this factory B110/B210 option, which looks fabulous for a few years
Album 31086

This is a vintage Nissan Muffler Cutter with part number 20321-H2500. It is a new old stock (NOS) part, meaning it is an original, unused part from a past production run.

• This type of part is often sought after by collectors and restorers of classic Datsun and Nissan vehicles.
• The packaging indicates it is a genuine Nissan part.
• The item is a chrome exhaust tip, designed to be fitted to the end of the tailpipe

20321-H2500 Muffler-Cutter マフラーカッター B110
Post 499090

Post 499090 Post 499090 Post 499090

Stealth

For the sleeper look
Album 12687 Album 12698 

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