70-74 E-body Mfds-back Exhaust Systems

Our performance exhaust systems are designed and fabricated in-house using sophisticated CNC machinery and mandrel bent for a precise fit and uninterrupted exhaust flow. Systems are constructed of 16 gauge aluminized tubing to resist heat and corrosion damage. Our high performance dual systems have proven to deliver more horsepower and torque over stock size exhaust systems while improving exhaust flow.

Exhaust-Pipes: Manifolds-back exhaust systems will include Exhaust-Pipes (aka Head-pipes) to bolt-up to the manifolds. When ordering, the 7-digit casting no's will be required.

Mid-pipe Designs: Exhaust systems are available with either an H-pipe or X-pipe mid-section assembly.

• The H-pipe design has proven to provide increased horsepower over the stock straight exhaust pipes.

• The X-pipe design has proven to improve power and sound tone compared to the traditional H-pipe design mid-section.

Mufflers: 70-74 E-body exhaust systems were designed using the Dynomax Super Turbo mufflers. Our personal preference due to the mild sound level, true performance tone, and minimal interior resonation noise compared to other mufflers.

When choosing to use mufflers other than the Dynomax Super Turbo, please note that modification may be required to the muffler slips for proper fit and alignment due to muffler case lengths and width differences. Modification may include cutting, welding, notching and adding material for additional length. Applications using mufflers longer than systems were design with, will require shortening the outlet end of the mid-pipe (H-or X). Using mufflers shorter than systems were designed with, will require adding additional material at the inlet end of the muffler. We offer pre-fabricated tube length extenders "Slip-Connectors" for additional material, sold separately.

• 2.5" Exhaust Systems designed with muffler #17733, offset inlet/center outlet, 4.25 x 9.75" canister, 18.5" overall length

• 3.0" Exhaust Systems designed with muffler #17793, offset inlet/center outlet, 5.50 x 11.0" canister, 23.0" overall length.

Muffler Hangers: Heavy-duty design, mounts to the supplied muffler hanger body brackets.

Over-Axle Tailpipes:

• 70-74 Challenger style tailpipes are designed blunt-cut ready to accept Challenger dual-rectangle exhaust tips. (Tips sold separately)

• 70-74 Cuda style tailpipes are designed blunt-cut ready to accept Cuda rectangle exhaust tips. Tips must be welded onto the tailpipes, there is not enough straight pipe for a slip-on style exhaust tip to clamp onto. (Tips sold separately)

• 70-74 Turndown tailpipes with a finished angle-cut are designed for vehicles without cut-outs in the valance panel.

Tailpipe Hanger Receptacles: Floor pan mount design with rubber block insulator.

Installation: Bolt-on design, no welding required. Please read the installation instructions that are supplied with the exhaust system. We recommend starting the installation with the tailpipes working towards the engine.


1.	CHALLENGER Exhaust Systems ... (Line E1-E12)
2.	CUDA Exhaust Systems ... (Line E13-E32)
3.	E-BODY Exhaust Systems with turndown tailpipes ... (Line E33-E44)

MANIFOLDS-BACK EXHAUST SYSTEMS

Manifolds-back exhaust systems include

• Exhaust-Pipes (aka Head-pipes)

• Mid-Section Assembly (H-pipe or X-pipe design)

• Dynomax Super Turbo Mufflers (Available with or without)

• Muffler Hangers (Body brackets sold separately)

• Over-Axle Tailpipes

• Tailpipe Hanger Receptacles

• Clamps & hardware necessary for the bolt-on installation

(!) Required when ordering: Left & right 7-digit manifold casting no's,

and Auto or Standard transmission

• Manifold casting no's list: 273-360 383-440 426-Hemi

(We mfg pipes to bolt-up to manifolds, we do not sell manifolds)

• Application Footnotes: 04, 08, 10, 18, 57, 61

• Accessories & Component Parts

1. DODGE CHALLENGER

Exhaust systems w/ Blunt-Cut Tailpipes, ready to accept tips

Line #	Mid-Pipe Design Choose H or X	Mufflers Choose with or without	Tailpipe Style	O.D. Tube Size	Price	Header-back systems Part No's...
See Part no's --->>>
E1	H-pipe	with Mufflers	Blunt-Cut (Ready to accept tips)	2.5"	$ 841.95	E25M WM-CHA
E2	H-pipe	without Mufflers	Blunt-Cut (Ready to accept tips)	2.5"	$ 731.95	E25M NM-CHA
E3	H-pipe	with Mufflers	Blunt-Cut (Ready to accept tips)	3.0"	$ 1042.95	E30M WM-CHA
E4	H-pipe	without Mufflers	Blunt-Cut (Ready to accept tips)	3.0"	$ 802.95	E30M NM-CHA

E5	H-pipe GVOD*	with Mufflers	Blunt-Cut (Ready to accept tips)	2.5"	$ 841.95	E25 GVMW-CHA
E6	H-pipe GVOD*	without Mufflers	Blunt-Cut (Ready to accept tips)	2.5"	$ 731.95	E25 GVMN-CHA
E7	H-pipe GVOD*	with Mufflers	Blunt-Cut (Ready to accept tips)	3.0"	$ 1042.95	E30 GVMW-CHA
E8	H-pipe GVOD*	without Mufflers	Blunt-Cut (Ready to accept tips)	3.0"	$ 802.95	E30 GVMN-CHA
	*H-pipe clears Gear Vendors Overdrive unit
E9	X-pipe	with Mufflers	Blunt-Cut (Ready to accept tips)	2.5"	$ 898.95	XE25 MW-CHA
E10	X-pipe	without Mufflers	Blunt-Cut (Ready to accept tips)	2.5"	$ 786.95	XE25 MN-CHA
E11	X-pipe	with Mufflers	Blunt-Cut (Ready to accept tips)	3.0"	$ 1082.95	XE30 MW-CHA
E12	X-pipe	without Mufflers	Blunt-Cut (Ready to accept tips)	3.0"	$ 861.95	XE30 MN-CHA

*** Prices do not include Shipping, Handling or California Sales Tax, if applicable ***

Prices subject to change without notice.

MANIFOLDS-BACK EXHAUST SYSTEMS

Manifolds-back exhaust systems include

• Exhaust-Pipes (aka Head-pipes)

• Mid-Section Assembly (H-pipe or X-pipe design)

• Dynomax Super Turbo Mufflers (Available with or without)

• Muffler Hangers (Body brackets sold separately)

• Over-Axle Tailpipes

• Tailpipe Hanger Receptacles

• Clamps & hardware necessary for the bolt-on installation

(!) Required when ordering: Left & right 7-digit manifold casting no's,

and Auto or Standard transmission

• Manifold casting no's list: 273-360 383-440 426-Hemi

(We mfg pipes to bolt-up to manifolds, we do not sell manifolds)

• Application Footnotes: 04, 08, 10, 18, 57, 61

• Accessories & Component Parts

2. PLYMOUTH CUDA

Exhaust systems w/ Blunt-Cut Tailpipes, ready to accept tips

Line #

Mid-Pipe Design

Choose H or X

Mufflers

Choose with or without

Tailpipe Style

O.D.

Tube Size

Price

Header-back systems

Part No's...

See Part no's --->>>

E13	H-pipe	with Mufflers	Blunt-Cut (Ready to accept tips)	2.5"	$ 841.95	E25M WM-CU
E14	H-pipe	without Mufflers	Blunt-Cut (Ready to accept tips)	2.5"	$ 731.95	E25M NM-CU
E15	H-pipe	with Mufflers	Blunt-Cut (Ready to accept tips)	3.0"	$ 1042.95	E30M WM-CU
E16	H-pipe	without Mufflers	Blunt-Cut (Ready to accept tips)	3.0"	$ 802.95	E30M NM-CU


E17	H-pipe GVOD*	with Mufflers	Blunt-Cut (Ready to accept tips)	2.5"	$ 841.95	E25GV MW-CU
E18	H-pipe GVOD*	without Mufflers	Blunt-Cut (Ready to accept tips)	2.5"	$ 731.95	E25GV MN-CU
E19	H-pipe GVOD*	with Mufflers	Blunt-Cut (Ready to accept tips)	3.0"	$ 1042.95	E30GV MW-CU
E20	H-pipe GVOD*	without Mufflers	Blunt-Cut (Ready to accept tips)	3.0"	$ 802.95	E30GV MN-CU
	*H-pipe clears Gear Vendors Overdrive unit

E21	H-pipe	with Mufflers	RMS* Blunt-Cut (Ready to accept tips)	2.5"	$ 841.95	E25M WRMS-CU
E22	H-pipe	without Mufflers	RMS* Blunt-Cut (Ready to accept tips)	2.5"	$ 731.95	E25M NRMS-CU
E23	H-pipe	with Mufflers	RMS* Blunt-Cut (Ready to accept tips)	3.0"	$ 1042.95	E30M WRMS-CU
E24	H-pipe	without Mufflers	RMS* Blunt-Cut (Ready to accept tips)	3.0"	$ 802.95	E30M NRMS-CU
			*Tailpipes clear RMS 4-Lynx rear suspension
E25	X-pipe	with Mufflers	Blunt-Cut (Ready to accept tips)	2.5"	$ 898.95	XE25 MW-CU
E26	X-pipe	without Mufflers	Blunt-Cut (Ready to accept tips)	2.5"	$ 786.95	XE25 MN-CU
E27	X-pipe	with Mufflers	Blunt-Cut (Ready to accept tips)	3.0"	$ 1082.95	XE30 MW-CU
E28	X-pipe	without Mufflers	Blunt-Cut (Ready to accept tips)	3.0"	$ 861.95	XE30 MN-CU

E29	X-pipe	with Mufflers	RMS* Blunt-Cut (Ready to accept tips)	2.5"	$ 898.95	XE25M WRMS-CU
E30	X-pipe	without Mufflers	RMS* Blunt-Cut (Ready to accept tips)	2.5"	$ 786.95	XE25M NRMS-CU
E31	X-pipe	with Mufflers	RMS* Blunt-Cut (Ready to accept tips)	3.0"	$ 1082.95	XE30M WRMS-CU
E32	X-pipe	without Mufflers	RMS* Blunt-Cut (Ready to accept tips)	3.0"	$ 861.95	XE30M NRMS-CU
			*Tailpipes clear RMS 4-Lynx rear suspension

*** Prices do not include Shipping, Handling or California Sales Tax, if applicable ***

Prices subject to change without notice.

MANIFOLDS-BACK EXHAUST SYSTEMS

Manifolds-back exhaust systems include

• Exhaust-Pipes (aka Head-pipes)

• Mid-Section Assembly (H-pipe or X-pipe design)

• Dynomax Super Turbo Mufflers (Available with or without)

• Muffler Hangers (Body brackets sold separately)

• Over-Axle Tailpipes

• Tailpipe Hanger Receptacles

• Clamps & hardware necessary for the bolt-on installation

(!) Required when ordering: Left & right 7-digit manifold casting no's,

and Auto or Standard transmission

• Manifold casting no's list: 273-360 383-440 426-Hemi

(We mfg pipes to bolt-up to manifolds, we do not sell manifolds)

• Application Footnotes: 04, 08, 10, 18, 57, 61

• Accessories & Component Parts

3. CHALLENGER and CUDA

Exhaust systems w/ Turndown Tailpipes (For applications without cut-outs in valance panel)

Line #

Mid-Pipe Design

Choose H or X

Mufflers

Choose with or without

Tailpipe Style

O.D.

Tube Size

Price

Header-back systems

Part No's...

See Part no's --->>>

E33	H-pipe	with Mufflers	Turndown, angle-cut	2.5"	$ 841.95	P/N: E25MW M-TD
E34	H-pipe	without Mufflers	Turndown, angle-cut	2.5"	$ 731.95	P/N: E25MN M-TD
E35	H-pipe	with Mufflers	Turndown, angle-cut	3.0"	$ 1042.95	P/N: E30MW M-TD
E36	H-pipe	without Mufflers	Turndown, angle-cut	3.0"	$ 802.95	P/N: E30MN M-TD

E37	H-pipe GVOD*	with Mufflers	Turndown, angle-cut	2.5"	$ 841.95	P/N: E25GV MW-TD
E38	H-pipe GVOD*	without Mufflers	Turndown, angle-cut	2.5"	$ 731.95	P/N: E25GV MN-TD
E39	H-pipe GVOD*	with Mufflers	Turndown, angle-cut	3.0"	$ 1042.95	P/N: E30GV MW-TD
E40	H-pipe GVOD*	without Mufflers	Turndown, angle-cut	3.0"	$ 802.95	P/N: E30GV MN-TD
	*H-pipe clears Gear Vendors Overdrive unit
E41	X-pipe	with Mufflers	Turndown, angle-cut	2.5"	$ 898.95	P/N: XE25 MW-TD
E42	X-pipe	without Mufflers	Turndown, angle-cut	2.5"	$ 786.95	P/N: XE25 MN-TD
E43	X-pipe	with Mufflers	Turndown, angle-cut	3.0"	$ 1082.95	P/N: XE30 MW-TD
E44	X-pipe	without Mufflers	Turndown, angle-cut	3.0"	$ 861.95	P/N: XE30 MN-TD

*** Prices do not include Shipping, Handling or California Sales Tax, if applicable ***

Prices subject to change without notice.

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70-74 E-BODY FOOTNOTES

FN01

HEADER ADAPTERS
Header adapters will be required to transition Headers to an Exhaust System. TTi Headers are supplied with adapters, however, if transitioning the exhaust system from headers other than TTi's, a Header Adapter Kit will be required. Kits include all necessary material to custom fabricate adapters. Sold separately. Accessories & Component Parts

FN04

MUFFLER HANGER BODY BRACKET
Bracket(s) are required if the vehicle is not equipped for a dual exhaust system or if the vehicle has been stripped of all mounting brackets. The OE brackets are located behind the rear seats and mounted directly to the body panel. Sold separately. Accessories & Component Parts

FN08

STANDARD TRANS SHIFTER LINKAGE REVERSE ROD
Applications equipped with a 4-speed transmission will require a 70-72 style shifter linkage reverse rod to clear the mid-section assembly (H or X-pipe). Brewer's Performance part no. LR854

FN10

DANA-60 REAR
Tailpipes will not fit applications with the RMS Street-Lynx rear suspension / Dana-60 rear-end. However, tailpipes will fit a Dana-60 rear-end with the factory suspension leaf springs.

FN18

REAR SWAY BARS
Tailpipes will not clear the FFI (Firm Feel Inc) rear sway bar or any aftermarket sway bar designs that are mounted above and forward of the rear axle. For details see sheet 1112

FN57

RELOCATED LEAF-SPRINGS
Tailpipes will not fit applications if the leaf springs have been moved inboard for added tire clearance. However, clearance can be achieved in the following applications, 62-76 A-bodies, 62-67 B-bodies & 65-73 C-bodies by running a Fuel Cell and Mufflers with an offset inlet / offset outlet. Mufflers may require modification to the muffler slips for proper fit and alignment due to the muffler case length and width differences.

FN61

GEAR VENDORS OVERDRIVE
H-pipe exhaust systems will clear the Gear Vendors Overdrive unit. When ordering, be sure to choose the correct part no.
X-pipe exhaust systems will not clear the Gear Vendors overdrive unit. (The GVOD tail shaft occupies the same space as the X in the X-pipe mid-section)

ACCESSORIES & COMPONENT PARTS

Part No.

Price

HEMI HEAT TUBE NIPPLE

Tube nipple installed in the passenger-side Hemi exhaust-pipe. Special-Order lead-time: 5-7 days

MISC-HTEP

$ 58.80 ea.

MUFFLER HANGER BODY BRACKETS

Bracket(s) are required if the vehicle is not equipped for a dual exhaust system or if the vehicle has been stripped of all mounting brackets. Single/Dual OE bracket(s) are located behind the rear seats mounted directly to the body panel.

E2530BB

E2530BB2

$ 37.35 ea.

$ 74.70 /set

CHALLENGER DUAL-RECTANGLE EXHAUST TIPS

Investment cast reproduction tips. 304SS, polished, 10" overall length, slip-on style, inlet notched for clamping, angled-cut outlet, includes band clamps and rivets to firmly hold tips in place.

2.5" I.D. inlet ... TIP25-CHA

3.0" I.D. inlet ... TIP30-CHA

$ 541.00 /set

$ 559.00 /set

CUDA EXHAUST TIPS welded-on to tailpipes

Investment cast reproduction tips. 304SS, polished, angled-cut outlet. These tips are welded-on to the Cuda (Ready to accept tips) Tailpipes and must be purchased at the same time as the exhaust system.

2.5" I.D. inlet ... TIP25CU

3.0" I.D. inlet ... TIP30CU

$ 423.00 /set

$ 442.00 /set

CUDA EXHAUST TIPS (DIY welding required)

Investment cast reproduction tips. 304SS, polished, angled-cut outlet. These tips are for those who prefer to weld the tips on themselves or if purchasing the tips after the tailpipes have already been purchased.

2.5" I.D. inlet ... TIP25CU-S

3.0" I.D. inlet ... TIP30CU-S

$ 391.00 /set

$ 409.00 /set

SLIP-CONNECTORS (aka Tube Length Extenders)

9.0" long slip-connectors add additional tube length between the mid-pipe and the muffler inlet when running mufflers shorter than the exhaust system was designed for. Cutting may be required for desired length. Includes U-bolt clamps. (I.D. inlet x O.D. outlet)

2.5" I.D. inlet ... SC25

3.0" I.D. inlet ... SC30

$ 20.60 /set

$ 23.64 /set

HEADER ADAPTER KITS (Kits for long tube headers)

Kits include (2) 6" long 3-bolt flanged reducer adapters, (2) 90-degree aluminized bends, (2) 3-bolt gaskets, 6-pc hardware set, and fabrication instructions. See fabrication instruction sheet #90

Header Collector Size	Exhaust System Size	Part No.	Price
3.0"	2.5" O.D.	AD-302590	$87.55
3.0"	3.0" O.D.	AD-303090	$ 92.70
3.5"	2.5" O.D.	AD-352590	$ 100.95
3.5"	3.0" O.D.	AD-353090	$ 106.10
4.0"	3.0" O.D.	AD-403090	$ 116.40

Discounted Price

when purchased with exhaust system

$ 53.00 /set

SHORTY HEADER ADAPTER KIT (Kit for Schumacher shorty headers)

Kits include (4) 90-degree aluminized bends, (2) 2.5" 2-bolt flanges, 4-pc hardware set, and fabrication instructions. See fabrication instruction sheet #91

Header Collector Size	Exhaust System Size	Part No.	Price
2.5"	2.5" O.D.	AD-SC25X90	$ 91.70

Discounted Price

when purchased with exhaust system

$ 53.00 /set

COATING OPTIONS


	SPECIAL-ORDER COATING OPTIONS (Coating Options) Exterior ceramic coating is typically for appearance purpose only, while the thermal barrier coating inside the tubes will add longevity to the life of the exhaust system. A non-refundable deposit is required to start all "Special-Orders". (Lead-time: 3-5 weeks)

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Updated: December 21, 2023

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