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Complete Exhaust System - 1973 Pontiac GTO, 1973-77 Grand Am

 

              

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PLX7301 - Stock Exhaust

73 GTO, 73-77 Grand Am / Lemans, Std Man

Dual Exhaust Includes: 2" head pipes - , 2 " tail pipes, head pipe flanges, stock style mufflers, muffler clamps, tail pipe chrome tips. ( This Kit Does Not Come With Hangers)

OEM Galvanized Steel     $700.00 Complete System.  

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PLX7304 - Oversized

73 GTO, 73-77 Grand Am / Lemans, RA Man

Dual Exhaust Includes: 2 1/4" RA head pipes - No Reduction, 2 1/4 " tail pipes, head pipe flanges, stock style mufflers, muffler clamps, tail pipe chrome tips. ( This Kit Does Not Come With Hangers)

(This is for cars using the SD or RA exhaust manifolds)

OEM Galvanized Steel     $765.00 Complete System.   

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Details:

This is a stock exhaust system kit that includes: Preformed dual exhaust 2 1/4" head pipes, 2 " tail pipes,  factory flanges and bolts, factory stock mufflers, muffler clamps, and chrome Tail pipe extensions. This system is for All 73 GTO's,  73-77 Lemans & Grand Am. Cars with Standard Exhaust Manifolds. This system is also available for the Ram Air or Super Duty Exhaust manifolds and for the lemans with no chrome extension but a turn down at the rear bumper.

This system is made of aluminized 14 gauge tubing so all the pipes are as thick as the originals and have a durable coating.  The hardware is all plated in the factory color phosphate plating with silver zinc rivets and clamp surrounds. This is concourse correct hardware. The mufflers are the correct size and shape and are made of all galvanized  materials. The seams are folded and crimped identical to a factory muffler. These are flow through mufflers that give your muscle car a rumble and are not restrictive like other stock mufflers. They sound and perform like a turbo muffler NOT a flowmaster. On the dyno the horsepower difference with the muffler and with out was 6-8 H.P.

Available Upgrades:

The stock system has 2 1/4" Head pipes that are reduced to 2" to go into the stock muffler and the upgrade system has 2 1/4" head pipes with no reduction and a 2 1/4" inlet on the muffler. This system can also be upgraded to the 2 1/2" head pipes that are reduced to 2 1/4" at the muffler for high HP engines.  The stock system also has 2" tail pipes that can be ordered in 2 1/4" so your system can be unrestricted from front to back. This allows a bit more performance on a modified car.

Chrome tips: - In 1973 the chrome tip was on all GTO's & Grand Am's.  The Lemans did not have the tip but had a quick turn down at the rear bumper valance. The chrome tips are made of stainless steel and polished to a chrome like finish.  The chrome tip is unique to 1973 only and exits out behind the rear bumper. This tip has been discontinued for years and is impossible to find until now. Our tip is identical to the factory original and features a stainless steel polished finish that will never rust out again. 

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Exhaust - 73 Pontiac GTO, Lemans GT, Lemans, Tempest

GM A-body View Part PLX73H2 PLX73H3 PLX73H4 PLX73H5 PLX73M1 PLX73M2 PLX73M3 PLX73T1 PLX73T2 PLX73T3 PLX73T4 INL12275 INL12276 INL11012 INL11159 INL11013 INL11291 INL11185 INL11292 INL10837 INL10838 INL11001 PLX7301 PLX7302 PLX7203 PLX7304 PLX7305 PLX7306 PLX7307 PLX7308

1973 Pontiac GTO, Lemans, Grand Am Application 1973-77 GTO Ram Air Manifold 2 1/4" Head Pipes, No Reduction 2 1/4" - With Flanges 1973-77 GTO Ram Air Manifold 2 1/2" Head Pipes, Reduced to 2 1/4" - With Flanges 1973-77 GTO With Standard Manifold 2 " Head Pipes - Stock, With Flanges 1973-77 GTO With Standard Manifold 2 1/4" Oversize Head Pipes, With Flanges 1973-77 GTO Offset / Center 21" Muffler Body, Each 2 " I.D. Inlet, 2" I.D. Outlet - Stock 1973-77 GTO Offset / Center 21" Muffler Body, Each 2 1/4 "I.D. Inlet, 2 1/4" I.D. Outlet - Oversized Head/Tail Pipes 1973-77 GTO Offset / Center 21" Muffler Body, Each 2 1/4 "I.D. Inlet, 2 1/4" I.D. Outlet - Oversized Head/Tail Pipes 1973-77 Lemans, Grand Am 2 " Tail Pipes Turn Down at Rear Bumper - Stock 1973-77 Lemans, Grand Am 2 1/4 " Tail Pipes Turn Down at Rear Bumper - Oversized 1973 GTO, 73-77 Grand Am, 2 " Tail Pipes with Stainless Tip - Stock 1973 GTO, 73-77 Grand Am, 2 1/4 " Tail Pipes with Stainless Tip - Oversized 73 GTO Tail Pipe Chrome Tip Stock 2 " Tail Pipe Note: the tail pipe tip is 2" I.D. to slip over the tail pipe but if you have a 2 1/4" tail pipe this same tips has a 2 1/4" O.D. to slip into the 2 1/4" tail pipe. 73 GTO Tail Pipe Chrome Tip Oversized 2 1/4" Tail Pipe Note: These are the same tips as above but are expanded to fit OVER the 2 1/4" tail pipe and can't be used on the 2" tail pipe. 68-77 Ram Air Exhaust Manifold Flanges - Stock 2 1/4" Head Pipe - Cast Iron, Pair 68-77 Ram Air Exhaust Manifold Flanges - Stock 2 1/4" Head Pipe - Cast Iron Ceramic Coated, Pair 68-77 Ram Air Exhaust Manifold Flanges - Stock 2 1/2" Head Pipe - Cast Iron, Pair 68-77 Ram Air Exhaust Manifold Flanges - Stock 2 1/2" Head Pipe - Cast Iron, Ceramic Coated, Pair INL11184 68-77 Standard Exhaust Manifold Flanges - Stock 2-2 1/4" Head Pipe - Stamped Steel, Pair 68-77 Standard Exhaust Manifold Flanges - Stock 2-2 1/4" Head Pipe - Stamped Steel, Ceramic, Pair 2" Muffler Clamps - Pair 2 1/4" Muffler Clamps - Pair 2 1/4" Tail Pipe Clamps, Pair - Phos Stock Exhaust Set - 2" OE Steel 73 GTO, 73-77 Grand Am / Lemans, Std Man Dual Exhaust Includes: 2" head pipes - , 2 " tail pipes, head pipe flanges, stock style mufflers, muffler clamps, tail pipe chrome tips ( This Kit Does Not Come With Hangers). Over Sized Exhaust Set - 21/4" OE Steel 73 GTO, 73-77 Grand Am / Lemans, Std Man Dual Exhaust Includes: 2 1/4" head pipes - No Reduction, 2 " tail pipes, head pipe flanges, stock style mufflers, muffler clamps, tail pipe chrome tips ( This Kit Does Not Come With Hangers). Over Sized Exhaust Set - 2 1/4" OE Steel 73 GTO, 73-77 Grand Am / Lemans, Std Man Dual Exhaust Includes: 2 1/4" head pipes - No Reduction, 2 1/4" Oversized tail pipes, head pipe flanges, stock style mufflers, muffler clamps, tail pipe chrome tips ( This Kit Does Not Come With Hangers). Over Sized Exhaust Set - 2 1/4"+ OE Steel 73 GTO, 73-77 Grand Am / Lemans, RA Man Dual Exhaust Includes: 2 1/4" RA head pipes - No Reduction, 2 1/4 " tail pipes, head pipe flanges, stock style mufflers, muffler clamps, tail pipe chrome tips ( This Kit Does Not Come With Hangers). (This is for cars using the SD or RA exhaust manifolds) Over Sized Exhaust Set - 2 1/2" OE Steel 73 GTO, 73-77 Grand Am / Lemans, RA Man $785.00 Dual Exhaust Includes: 2 1/2" RA head pipes - reduced to 2 1/4" at muffler, 2 1/4 " tail pipes, head pipe flanges, stock style mufflers & clamps, tail pipe chrome tips. ( Kit Does Not Come With Hangers) (This is for cars using the SD or RA exhaust manifolds) No Tips: Stock Exhaust Set - 2" OE Steel 73-77 Grand Am / Lemans, Std Man Dual Exhaust Includes: 2" head pipes - , 2 " tail pipes with turn down on end, head pipe flanges, stock style mufflers, muffler clamps and tail pipe clamps ( This Kit Does Not Come With Hangers). Over Sized Exhaust Set - 21/4" OE Steel 73 GTO, 73-77 Grand Am / Lemans, Std Man Dual Exhaust Includes: 2 1/4" tail pipes with turn down on end, head pipe flanges, stock style mufflers, muffler clamps and tail pipe clamps ( This Kit Does Not Come With Hangers). Over Sized Exhaust Set - 2 1/4"+ OE Steel 73 GTO, 73-77 Grand Am / Lemans, RA Man Dual Exhaust Includes: 2 1/4" RA head pipes - No Reduction, 2 1/4 " tail pipes with turn down on end, head pipe flanges, stock style mufflers, muffler clamps and tail pipe clamps ( This Kit Does Not Come With Hangers).

Price OEM $225.00 $245.00 $180.00 $200.00 $89.00 $89.00 $89.00 $200.00 $225.00 $325.00 $350.00 $179.00 $189.00 $42.00 $55.00 $50.00 $65.00 $26.00 $41.00 $9.50 $9.50 $14.00 $700.00 $720.00 $745.00 $765.00 $785.00

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Inline Tube is the premier reproduction brake & fuel line company and is now taking its tube manufacturing to the next level and manufacturing select preformed exhaust systems.  We have been bending tube for over 18 years and making under chassis parts that have set the bar to be the industry best.   Our state of the art computer benders and laser scanner allow us to duplicate original parts with uncompromising accuracy.

All systems are mocked up on actual factory stock cars and pre-fitted.  Our systems come in the stock size and shape of the factory originals or optioned slightly oversized. All systems are made off our exclusive computer angle exhaust bender. This information is stored in the computer so bending is exact every time. Our systems feature a galvanized factory finish complete with flat spots and factory style exhaust flanges. Our exhaust pipes install with the exact factory plated hangers so there is no drilling or generic hanger placement. Our mufflers are a factory stock appearing flow through design with low restriction so you have a slight rumble and plenty of flow.  It is the way it should be complete and correct.