67-76 A-body 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: 67-76 A-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 hangers attach to the rear seat belt bolt hole with supplied bolts.

Over-Axle Tailpipes:

• 67-69 Barracuda tailpipes are designed blunt-cut. Available blunt-cut, ready to accept tips or blunt-cut, with aluminized turndown tips.

• 67-76 Dart, Demon, Duster, Scamp, Valiant tailpipes are designed Turndown with a finished angle-cut. To run exhaust tips, cut-off the turndowns.

Tailpipe Hanger Receptacles: Side frame rail 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.	67-76 A-BODY 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

• 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

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

• Application Footnotes: 10, 57, 61

• Accessories & Component Parts

Mid-Pipe Design

Choose H or X

Mufflers

Choose with or without

Tailpipe Style

O.D.

Tube Size

Price

Manifolds-back systems

(Click P/N for illustration .PDF)

PART NO'S...

67-69 PLYMOUTH BARRACUDA's

Line #

A13

H-pipe

with Mufflers

Blunt-cut (Ready to accept tips)

2.5"

$ 841.95

P/N: A25M WM-CUE

A14

H-pipe

without Mufflers

Blunt-cut (Ready to accept tips)

2.5"

$ 731.95

P/N: A25M NM-CUE

A15

X-pipe

with Mufflers

Blunt-cut (Ready to accept tips)

2.5"

$ 898.95

P/N: XA25MW-CUE

A16

X-pipe

without Mufflers

Blunt-cut (Ready to accept tips)

2.5"

$ 786.95

P/N: XA25MN-CUE

A17

H-pipe

with Mufflers

Blunt-cut Tailpipes w/ Turndown Slip-On Tips

2.5"

$ 880.00

P/N: A25M WM6769-CUE

A18

H-pipe

without Mufflers

Blunt-cut Tailpipes w/ Turndown Slip-On Tips

2.5"

$ 770.00

P/N: A25M NM6769-CUE

A19

X-pipe

with Mufflers

Blunt-cut Tailpipes w/ Turndown Slip-On Tips

2.5"

$ 935.00

P/N: XA25M W6769-CUE

A20

X-pipe

without Mufflers

Blunt-cut Tailpipes w/ Turndown Slip-On Tips

2.5"

$ 822.00

P/N: XA25M N6776-CUE

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

Prices subject to change without notice.

67-76 DART, DEMON, DUSTER, SCAMP & VALIANT

Line #

A21

H-pipe

with Mufflers

Turndown, angle-cut

2.5"

$ 841.95

P/N: A25M WM6776

A22

H-pipe

without Mufflers

Turndown, angle-cut

2.5"

$ 731.95

P/N: A25M NM6776

A23

X-pipe

with Mufflers

Turndown, angle-cut

2.5"

$ 898.95

P/N: XA25 MW6776

A24

X-pipe

without Mufflers

Turndown, angle-cut

2.5"

$ 786.95

P/N: XA25 MN6

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

Prices subject to change without notice.

(Top of page)

2.	67-76 A-BODY HEADER-BACK EXHAUST SYSTEMS (Headers sold separately)

Header-back exhaust systems include

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

• Dynomax Super Turbo Mufflers (Available with or without)

• Muffler Hangers

• Over-Axle Tailpipes

• Tailpipe Hanger Receptacles

• Clamps & hardware necessary for the bolt-on installation

(!) Header adapters will be required to transition headers to the exhaust system.

(!) Header information required when ordering: Header model no. & collector size.

• Application Footnotes: 01, 10, 57, 61

• Accessories & Component Parts

Mid-Pipe Design

Choose H or X

Mufflers

Choose with or without

Tailpipe Style

O.D.

Tube Size

Price

Header-back systems

(Click P/N for illustration .PDF)

PART NO'S...

67-69 PLYMOUTH BARRACUDA's

Line #

A25

H-pipe

with Mufflers

Blunt-cut (Ready to accept tips)

2.5"

$ 742.95

P/N: A25H WM-CUE

A26

H-pipe

without Mufflers

Blunt-cut (Ready to accept tips)

2.5"

$ 631.95

P/N: A25H NM-CUE

A27

H-pipe

with Mufflers

Blunt-cut (Ready to accept tips)

3.0"

$ 930.95

P/N: A30H WM-CUE

A28

H-pipe

without Mufflers

Blunt-cut (Ready to accept tips)

3.0"

$ 688.95

P/N: A30H NM-CUE

A29

H-pipe

with Mufflers

Blunt-cut Tailpipes w/ Turndown Slip-On Tips

2.5"

$ 780.00

P/N: A25H WM6769-CUE

A30

H-pipe

without Mufflers

Blunt-cut Tailpipes w/ Turndown Slip-On Tips

2.5"

$ 681.00

P/N: A25H NM6769-CUE

A31

H-pipe

with Mufflers

Blunt-cut Tailpipes w/ Turndown Slip-On Tips

3.0"

$ 978.00

P/N: A30H WM6769-CUE

A32

H-pipe

without Mufflers

Blunt-cut Tailpipes w/ Turndown Slip-On Tips

3.0"

$ 751.00

P/N: A30H NM6769-CUE

A33

X-pipe

with Mufflers

Blunt-cut (Ready to accept tips)

2.5"

$ 794.95

P/N: XA25 HW-CUE

A34

X-pipe

without Mufflers

Blunt-cut (Ready to accept tips)

2.5"

$ 693.95

P/N: XA25 HN-CUE

A35

X-pipe

with Mufflers

Blunt-cut (Ready to accept tips)

3.0"

$977.95

P/N: XA30 HW-CUE

A36

X-pipe

without Mufflers

Blunt-cut (Ready to accept tips)

3.0"

$ 747.95

P/N: XA30 HN-CUE

A37

X-pipe

with Mufflers

Blunt-cut Tailpipes w/ Turndown Slip-On Tips

2.5"

$ 837.00

P/N: XA25 HW6769-CUE

A38

X-pipe

without Mufflers

Blunt-cut Tailpipes w/ Turndown Slip-On Tips

2.5"

$ 731.00

P/N: XA25 HN6769-CUE

A39

X-pipe

with Mufflers

Blunt-cut Tailpipes w/ Turndown Slip-On Tips

3.0"

$ 1024.00

P/N: XA30 HW6769-CUE

A40

X-pipe

without Mufflers

Blunt-cut Tailpipes w/ Turndown Slip-On Tips

3.0"

$ 798.00

P/N: XA30 HN6769-CUE

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

Prices subject to change without notice.

67-76 DART, DEMON, DUSTER, SCAMP & VALIANT

Line #

A41

H-pipe

with Mufflers

Turndown, angle-cut

2.5"

$ 742.95

P/N: A25 HWM6776

A42

H-pipe

without Mufflers

Turndown, angle-cut

2.5"

$ 631.95

P/N: A25 HNM6776

A43

H-pipe

with Mufflers

Turndown, angle-cut

3.0"

$ 930.95

P/N: A30 HWM6776

A44

H-pipe

without Mufflers

Turndown, angle-cut

3.0"

$ 688.95

P/N: A30 HNM6776

A45

X-pipe

with Mufflers

Turndown, angle-cut

2.5"

$ 794.95

P/N: XA25 HW6776

A46

X-pipe

without Mufflers

Turndown, angle-cut

2.5"

$ 693.95

P/N: XA25 HN6776

A47

X-pipe

with Mufflers

Turndown, angle-cut

3.0"

$ 977.95

P/N: XA30 HW6776

A48

X-pipe

without Mufflers

Turndown, angle-cut

3.0"

$ 747.95

P/N: XA30 HN6776

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

Prices subject to change without notice.

(Top of page)

67-76 A-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
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.
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 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

OVAL Polished Exhaust Tips (Plymouth)

304SS, Slip-on style, inlet notched for clamping, 1.75 x 4.25 x 11.5" overall length, single wall, angled-cut, includes band clamps and rivets to firmly hold tips in place.

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

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

$ 208.00 /set

$ 218.00 /set

RECTANGLE Polished Exhaust Tips (Dodge)

304SS, Slip-on style, inlet notched for clamping, 1.75 x 4.25 x 11.5" overall length, single wall, angled-cut, includes band clamps and rivets to firmly hold tips in place.

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

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

$ 208.00 /set

$ 218.00 /set

ROUND Polished Exhaust Tips

304SS, Slip-on style, inlet notched for clamping, 3.0" body x 14.0" overall length, single wall, angled-cut, includes band clamps and rivets to firmly hold tips in place.

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

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

$ 177.00 /set

$ 185.00 /set

TURNDOWN Aluminized Tips

Made of 16 gauge aluminized tubing (same material & gauge as the exhaust system), mandrel bent, slip-on clamp style, inlet-end notched for clamping. Includes band clamps.

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

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

$ 46.95 /set

$ 52.95 /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)

(Top of page)

Updated: April 14, 2025

• About Us	• Coating Options	• Mopar Body Style ID	TUBE TECHNOLOGIES, INC. TTi Performance Exhaust & Headers 1555 Consumer Circle Corona, CA 92878-3226 Phone: (951) 371-4878 Fax: (951) 371-6143 Mon-Fri, 8am-4pm PST
• Contact Us	• Product Maintenance & Care	• Mopar Related Websites
• Ordering Information	• Limited Warranty	• Media / Published Articles
• Shipping Rates	• Illustration & Installation Instructions	• Warehouse Clearance
• Authorized Distributors	• FAQs

Designed and maintained by Tube Technologies, Inc.