GM Manifold Applications

GM Manifold Applications

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-- A $535 System less 10% is $481.50 or a $53.50 Savings! 888-465-7260

GM A, F & G-Body

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Click Here For Tailpipe Kits only These kits come with tailpipes, clamps and hangers only.

For Headpipe Kits only These kits come with Collector Reducers, Balance Tube, Headpipes, Clamps & Hangers

For X-Pipe Kits only Come with X-Junction and all pieces to reach from Header Collector to Muffler (May include clamps and hangers - optional)

For Complete Systems for Header Applications only These kits hook up directly to Long Tube type Headers and come with either a Balance Tube or X-Pipe Crossover. Also all Clamps & Hangers.

Chevy Downpipes fit Big Blocks

Buick Downpipes fit 400, 430 & 455 Stage 1 and Non-Stage Engines, also 350's

Olds Downpipes fit 455 Engines with 442 Manifolds, also 350's

Pontiac Downpipes fit Ram Air III & IV HO Manifolds

          (Pontiac Ram Air / HO Downpipes Do Not fit the 428 Ram Air Manifolds)

Complete Systems for the following Manifolds....

Chevy - Any Big Block Engine except Corvette

Buick - All 400, 430 455 Manifolds

Buick - All 350 Manifolds

Olds - Any 455 Engine with 442 WZ Manifolds

Olds - Any 350 Engine

Pontiac - Any 455 Engine with Ram Air III or IV Manifolds

Each System comes complete with Downpipes, Headpipes, Balance Tube, Tailpipes and all mounting hardware. * * Nuts, Bolts, Washers are Stainless and Clamps are Zinc Coated. Special Muffler Kit pricing applies just as when purchasing a complete Header System.

NOTE: The Ram Air/HO Downpipes DO NOT fit the 428 Ram Air/HO Manifolds

NOTE: Ram Air/HO Downpipes - The Ram Air Manifolds utilize either both 2-Bolt mounting flanges or a 2-Bolt and a 3-Bolt flange. We need to know what you need. Special RamAir type Flanges are required. They are listed below. You will need to know if 2-Bolt or 3-bolt or 1 of ea is necessary..

NOTE: Chevy Big Block Downpipes are basically the same as the Olds 442 units. See Olds 442 photo  (Olds use 2-Bolt Flanges while Chevy Big Block use 3-Bolt Flanges).

All tubing we sell is Mandrel Bent -- meaning no Kinks!, anywhere!

Our Manifold Systems utilize the same Headpipes & Tailpipes as the Header Systems. The Downpipes are designed to come down off the manifolds and "blend" into the Headpipes. To see how the tailpipes fit, check out the appropriate Header Application page for photos.

* * * If you do not see a system for your application, then you can purchase one of our Header Systems (less Collector Reducers) and have someone make Downpipes from your manifold down to meet our Headpipes,,,,,,,, OR if you have the desire and ability, purchase one of our "Make a Downpipe Kits" at the bottom of this page.

For Mufflers which will fit these kits go here. We meet and beat Summit & Jegs Flowmaster Pricing.

GM A-Body       (w/o Mufflers)

All 1968-72 & '66-67 Chevelle

   All 1964-67 & '73-77   (Except '66-67 Chevelle)

'68-72 Skylark/GS, Lemans/GTO, Cutlass/442, Malibu/SS, Monte Carlo/SS, Chevelle/SS, & '66-67 Chevelle, and equivalent vehicles. --- These use 1-Piece Tailpipes

'64-67 & '73-77 Buick Skylark/GS, Lemans/Tempest/GTO, Cutlass/442, El Camino/Caballero, Malibu/SS, Monte Carlo/SS, Chevelle/SS (EXCEPT '66-67 Chevelle), All '64-77 El Camino/Caballero-- All use 2-Piece Tailpipes

W/Turn Down Tails

W/Straight Tails

W/Turn Down Tailpipes (2-Piece)

   W/Straight Tails    (2-Piece)

For Chevy Big Block
Don't Forget Tailpipe Tips

Stainless Clamp Upgrades Below

     w/ Regular Balance Tube GMAO25200 $448 GMAO25210 $448 GMAO25211 $494 GMAO25211 $468

     w/ "X" Pipe w/2½"x2½" "X" GMAO25200X $503 GMAO25210X $503 GMAO25201X $549 GMAO25211X $523

For Pontiac 455 Ram Air III & IV*

     w/ Regular Balance Tube GMAP25200 $448 GMAP25210 $448 GMAP25201 $494 GMAP25211 $468

     w/ "X" Pipe w/2½"x2½" "X" GMAP25200X $503 GMAP25210X $503 GMAP25201X $549 GMAP25211X $523

For Buick 400, 430, 455

     w/ Regular Balance Tube GMAB25200 $448 GMAB25210 $448 GMAB25201 $494 GMAB25211 $468

     w/ "X" Pipe w/2½"x2½" "X" GMAB25200X $503 GMAB25210X $503 GMAB25201X $549 GMAB25211X $523

For Buick 350    n/a yet!

     w/ Regular Balance Tube GMAB25100 $448 GMAB25110 $448 GMAB25101 $494 GMAB25110 $468

     w/ "X" Pipe w/2½"x2½" "X" GMAB25100X $503 GMAB25110X $503 GMAB25101X $549 GMAB25111X $523

For Olds 455/442

     w/ Regular Balance Tube GMAO25200 $448 GMAO25210 $448 GMAO25200 $494 GMAO25211 $468

     w/ "X" Pipe w/2½"x2½" "X" GMAO25200X $503 GMAO25210X $503 GMAO25201X $549 GMAO25211X $523

For Olds 350

     w/ Regular Balance Tube GMAO25100 $460 GMAO25110 $460 GMAO25101 $506 GMAO25111 $480

     w/ "X" Pipe w/2½"x2½" "X" GMAO25100X $515 GMAO25110X $515 GMAO25101X $561 GMAO25111X $535

For Chevy 350/305    n/a yet!

     w/ Regular Balance Tube GMAC25100 $448 GMAC25110 $448 GMAC25101 $494 GMAC25111 $468

     w/ "X" Pipe w/2½"x2½" "X" GMAC25100X $503 GMAC25110X $503 GMAC25101X $549 GMAC25111X $523

*RamAir Downpipes take special clamps. These fit 2.5" Tubing. One of each required, usually. Sometimes both will need to be 2-Bolt. You will need to check your manifolds to see which are needed.   If you already have the original RamAir Flanges, they may be used - slight honing of inside may be required to slip over 2.5" tubing.

2-Bolt FLARA2.5-2 $24 ea                      w/System - $22.50 ea

3-Bolt FLARA2.5-3 $24 ea                      w/System - $22.50 ea

Stainless Clamp Upgrades

Above Kits w/Bal tube utilize 8 U-Bolt Clamps

   Above Kits w/X-Pipe utilize at least 4 or 6 U-Bolt Clamps -- Many customers upgrade Band Clamps at the front and rear of mufflers only & some at end of tailpipes with SS U-Bolt Clamps. 2.5" SS U-Bolt Clamps $4.75 ea

You can mix & match types of clamps -- Band clamps do not crimp the tubing & make for easy disassembly 2.5" SS Band Clamps $7.75 ea

For Mufflers which will fit these kits go here. We meet and beat Summit & Jegs Flowmaster Pricing.

GM F-Body         (w/o Mufflers)

1st Generation: 1967-67 Camaro, Firebird, Trans Am and '68-74 Nova, Apollo

2nd Generation: 1970-81 Camaro, Firebird, Trans Am

Chevy Big Block Pontiac Ram Air   III & IV* Olds 455/442
Don't Forget Tailpipe Tips

Stainless Clamp Upgrades Below

1st Generation

w/ Regular Balance Tube GMFC25200 $467 GMFP25200 $467 GMFO25200 $467

w/ "X" Pipe w/2.5"x2.5" "X" GMFC25200X $517 GMFP25200X $517 GMFO25200X $517

2nd Generation

w/ Regular Balance Tube GMFC25210 $467 GMFP25210 $467 GMFO25210 $467

w/ "X" Pipe w/2.5"x2.5" "X" GMFC25210X $517 GMFP25210X $517 GMFO25210X $517

Buick 400,430,455 Buick 350 Olds 350

1st Generation

w/ Regular Balance Tube GMFB25200 $467 GMFB25100 $467 GMFO25100 $482

w/ "X" Pipe w/2.5"x2.5" "X" GMFB25100X $517 GMFB25100X $517 GMFO25100X $534

2nd Generation

w/ Regular Balance Tube GMFB25210 $467 GMFB25110 $467 GMFO25110 $482

w/ "X" Pipe w/2.5"x2.5" "X" GMFB25210X $517 GMFB25110X $517 GMFO25110X $534

*RamAir Downpipes take special clamps. These fit 2.5" Tubing. One of each required, usually. Sometimes both will need to be 2-Bolt. You will need to check your manifolds to see which are needed.   If you already have the original RamAir Flanges, they may be used - slight honing of inside may be required to slip over 2.5" tubing.

2-Bolt FLARA2.5-2 $24 ea           w/System - $22.50 ea

3-Bolt FLARA2.5-3 $24 ea           w/System - $22.50 ea

Stainless Clamp Upgrades

Above Balance Tube Systems utilize (1st Gen - 10 / 2nd Gen - 8) Zinc U-Bolt Clamps

   Kits with X-Pipes utilize (1st Gen -4 / 2nd Gen - 6) Zinc U-Bolts -- Many customers upgrade Band Clamps at the front and rear of mufflers only & some at end of tailpipes with SS U-Bolt Clamps. X-pipe systems come with additional clamps used only for installation. There is no need to upgrade them. 2.5" SS U-Bolt Clamps $4.75 ea

You can mix & match types of clamps -- Band clamps do not crimp the tubing & make for easy disassembly 2.5" SS Band Clamps $7.75 ea

For Mufflers which will fit these kits go here. We meet and beat Summit & Jegs Flowmaster Pricing.

GM G-Body         (w/o Mufflers)

1978-88 Regal, Cutlass, Grand Prix, El Camino/Caballero, Monte Carlo, Malibu; '978-90 Caprice, LeSabre, Catalina, Bonneville & Olds Delta 88

'78-90 Caprice, LeSabre, Catalina, Bonneville & Olds Delta 88 -- will fit although hanging locations may have to be adapted. Might be necessary to use tips so tailpipes will come out to proper location as these B-Body vehicles are a little wider and longer than the regular G-Body vehicles for which they were designed.

Pontiac Ram Air III & IV* Buick 400,430,455 Olds 455/442 WZ

For Behind Wheel Tails

     w/ Regular Balance Tube GMGP25200 $483 GMGB25200 $483 GMGO25200 $483
Don't Forget Tailpipe Tips

Stainless Clamp Upgrades Below

    w/ "X" Pipe w/2.5"x2.5" "X" GMGP25200X $538 GMGB25200X $538 GMG025200X $538

For Monte SS Tails

     w/ Regular Balance Tube GMGP25210 $500 GMGB25210 $500 GMGO25210 $500

    w/ "X" Pipe w/2.5"x2.5" "X" GMGP25210X $555 GMGB25210X $555 GMG025210X $555

For Behind Wheel Tails

Chevy Big Block Chevy Small Block Olds 350

     w/ Regular Balance Tube GMGG25200 $483 GMGC25100 $483 GMGO25100 $498

    w/ "X" Pipe w/2.5"x2.5" "X" GMGC25200X $538 GMGC25100X $538 GMG025100X $553

For Monte SS Tails

     w/ Regular Balance Tube GMGC25200 $500 GMGC25100 $500 GMGO25100 $515

    w/ "X" Pipe w/2.5"x2.5" "X" GMGC25200X $555 GMGC25100X $555 GMG025100X $570

*RamAir Downpipes take special clamps. These fit 2.5" Tubing. One of each required, usually. Sometimes both will need to be 2-Bolt. You will need to check your manifolds to see which are needed.   If you already have the original RamAir Flanges, they may be used - slight honing of inside may be required to slip over 2.5" tubing.

2-Bolt FLARA2.5-2 $24 ea                    w/System - $22.50 ea

3-Bolt FLARA2.5-3 $24 ea                   w/System - $22.50 ea

Stainless Clamp Upgrades

Above Balance Tube Systems utilize 6 Zinc U-Bolt Clamps

   Kits with X-Pipes utilize 4 or 6 Zinc U-Bolts -- Many customers upgrade Band Clamps at the front and rear of mufflers only & some at end of tailpipes with SS U-Bolt Clamps. X-pipe systems come with additional clamps used only for installation. There is no need to upgrade them. 2.5" SS U-Bolt Clamps $4.75 ea

You can mix & match types of clamps -- Band clamps do not crimp the tubing & make for easy disassembly 2.5" SS Band Clamps $7.75 ea

For Mufflers which will fit these kits go here. We meet and beat Summit & Jegs Flowmaster Pricing.

Downpipes Sold Separately

(Includes Clamps and Mounting Flanges -- Pontiac's use 2-Bolt and/or 3-Bolt Flanges)

Chevy Big Block GMXC25200 $119/set

Chevy Small Block GMXC25100 $119/set

Buick 400, 430, 455 GMXB25200 $119/set

Buick 350 GMXB25100 $119/set

Pontiac Ram Air III or IV* GMXP25200 $119/set

Olds 455/442 GMXO25200 $119/set

Olds 403 (1977-79) GMXO25210 $119/set

Olds 350 GMXO25100 $129/set

*RamAir Downpipes take special clamps. These fit 2.5" Tubing. One of each required, usually. Sometimes both will need to be 2-Bolt. You will need to check your manifolds to see which are needed.   If you already have the original RamAir Flanges, they may be used - slight honing of inside may be required to slip over 2.5" tubing.

2-Bolt FLARA2.5-2   $24 ea    w/Downpipes- $22.50 ea

3-Bolt FLARA2.5-3 $24 ea   w/Downpipes - $22.50 ea

Make a Downpipe Kits

Click here to see about "Make a Downpipe Kits"

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      "All performance exhaust products for pollution controlled vehicles are intended for off-road or drag strip use only"

Copyright © 2002-2008,   Torque Tech & Co., Inc. All rights reserved.

This page last updated: 06/20/2008

Click Here	For Tailpipe Kits only	These kits come with tailpipes, clamps and hangers only.
	For Headpipe Kits only	These kits come with Collector Reducers, Balance Tube, Headpipes, Clamps & Hangers
	For X-Pipe Kits only	Come with X-Junction and all pieces to reach from Header Collector to Muffler (May include clamps and hangers - optional)
	For Complete Systems for Header Applications only	These kits hook up directly to Long Tube type Headers and come with either a Balance Tube or X-Pipe Crossover. Also all Clamps & Hangers.

GM A-Body (w/o Mufflers)

	All 1968-72 & '66-67 Chevelle		All 1964-67 & '73-77 (Except '66-67 Chevelle)
'68-72 Skylark/GS, Lemans/GTO, Cutlass/442, Malibu/SS, Monte Carlo/SS, Chevelle/SS, & '66-67 Chevelle, and equivalent vehicles. --- These use 1-Piece Tailpipes
'64-67 & '73-77 Buick Skylark/GS, Lemans/Tempest/GTO, Cutlass/442, El Camino/Caballero, Malibu/SS, Monte Carlo/SS, Chevelle/SS (EXCEPT '66-67 Chevelle), All '64-77 El Camino/Caballero-- All use 2-Piece Tailpipes
	W/Turn Down Tails	W/Straight Tails	W/Turn Down Tailpipes (2-Piece)	W/Straight Tails (2-Piece)
For Chevy Big Block					Don't Forget Tailpipe Tips Stainless Clamp Upgrades Below
w/ Regular Balance Tube	GMAO25200 $448	GMAO25210 $448	GMAO25211 $494	GMAO25211 $468
w/ "X" Pipe w/2½"x2½" "X"	GMAO25200X $503	GMAO25210X $503	GMAO25201X $549	GMAO25211X $523
For Pontiac 455 Ram Air III & IV*
w/ Regular Balance Tube	GMAP25200 $448	GMAP25210 $448	GMAP25201 $494	GMAP25211 $468
w/ "X" Pipe w/2½"x2½" "X"	GMAP25200X $503	GMAP25210X $503	GMAP25201X $549	GMAP25211X $523
For Buick 400, 430, 455
w/ Regular Balance Tube	GMAB25200 $448	GMAB25210 $448	GMAB25201 $494	GMAB25211 $468
w/ "X" Pipe w/2½"x2½" "X"	GMAB25200X $503	GMAB25210X $503	GMAB25201X $549	GMAB25211X $523
For Buick 350 n/a yet!
w/ Regular Balance Tube	GMAB25100 $448	GMAB25110 $448	GMAB25101 $494	GMAB25110 $468
w/ "X" Pipe w/2½"x2½" "X"	GMAB25100X $503	GMAB25110X $503	GMAB25101X $549	GMAB25111X $523
For Olds 455/442
w/ Regular Balance Tube	GMAO25200 $448	GMAO25210 $448	GMAO25200 $494	GMAO25211 $468
w/ "X" Pipe w/2½"x2½" "X"	GMAO25200X $503	GMAO25210X $503	GMAO25201X $549	GMAO25211X $523
For Olds 350
w/ Regular Balance Tube	GMAO25100 $460	GMAO25110 $460	GMAO25101 $506	GMAO25111 $480
w/ "X" Pipe w/2½"x2½" "X"	GMAO25100X $515	GMAO25110X $515	GMAO25101X $561	GMAO25111X $535
For Chevy 350/305 n/a yet!
w/ Regular Balance Tube	GMAC25100 $448	GMAC25110 $448	GMAC25101 $494	GMAC25111 $468
w/ "X" Pipe w/2½"x2½" "X"	GMAC25100X $503	GMAC25110X $503	GMAC25101X $549	GMAC25111X $523


*RamAir Downpipes take special clamps. These fit 2.5" Tubing. One of each required, usually. Sometimes both will need to be 2-Bolt. You will need to check your manifolds to see which are needed. If you already have the original RamAir Flanges, they may be used - slight honing of inside may be required to slip over 2.5" tubing.
	2-Bolt	FLARA2.5-2	$24 ea	w/System - $22.50 ea
	3-Bolt	FLARA2.5-3	$24 ea	w/System - $22.50 ea

Stainless Clamp Upgrades
Above Kits w/Bal tube utilize 8 U-Bolt Clamps
Above Kits w/X-Pipe utilize at least 4 or 6 U-Bolt Clamps -- Many customers upgrade Band Clamps at the front and rear of mufflers only & some at end of tailpipes with SS U-Bolt Clamps.		2.5" SS U-Bolt Clamps		$4.75 ea
You can mix & match types of clamps -- Band clamps do not crimp the tubing & make for easy disassembly		2.5" SS Band Clamps		$7.75 ea
For Mufflers which will fit these kits go here. We meet and beat Summit & Jegs Flowmaster Pricing.

GM F-Body (w/o Mufflers)

1st Generation: 1967-67 Camaro, Firebird, Trans Am and '68-74 Nova, Apollo
2nd Generation: 1970-81 Camaro, Firebird, Trans Am
	Chevy Big Block	Pontiac Ram Air III & IV*	Olds 455/442	Don't Forget Tailpipe Tips Stainless Clamp Upgrades Below
1st Generation
w/ Regular Balance Tube	GMFC25200 $467	GMFP25200 $467	GMFO25200 $467
w/ "X" Pipe w/2.5"x2.5" "X"	GMFC25200X $517	GMFP25200X $517	GMFO25200X $517
2nd Generation
w/ Regular Balance Tube	GMFC25210 $467	GMFP25210 $467	GMFO25210 $467
w/ "X" Pipe w/2.5"x2.5" "X"	GMFC25210X $517	GMFP25210X $517	GMFO25210X $517

	Buick 400,430,455	Buick 350	Olds 350
1st Generation
w/ Regular Balance Tube	GMFB25200 $467	GMFB25100 $467	GMFO25100 $482
w/ "X" Pipe w/2.5"x2.5" "X"	GMFB25100X $517	GMFB25100X $517	GMFO25100X $534
2nd Generation
w/ Regular Balance Tube	GMFB25210 $467	GMFB25110 $467	GMFO25110 $482
w/ "X" Pipe w/2.5"x2.5" "X"	GMFB25210X $517	GMFB25110X $517	GMFO25110X $534

*RamAir Downpipes take special clamps. These fit 2.5" Tubing. One of each required, usually. Sometimes both will need to be 2-Bolt. You will need to check your manifolds to see which are needed. If you already have the original RamAir Flanges, they may be used - slight honing of inside may be required to slip over 2.5" tubing.
	2-Bolt	FLARA2.5-2	$24 ea w/System - $22.50 ea
	3-Bolt	FLARA2.5-3	$24 ea w/System - $22.50 ea

Stainless Clamp Upgrades
Above Balance Tube Systems utilize (1st Gen - 10 / 2nd Gen - 8) Zinc U-Bolt Clamps
Kits with X-Pipes utilize (1st Gen -4 / 2nd Gen - 6) Zinc U-Bolts -- Many customers upgrade Band Clamps at the front and rear of mufflers only & some at end of tailpipes with SS U-Bolt Clamps. X-pipe systems come with additional clamps used only for installation. There is no need to upgrade them.		2.5" SS U-Bolt Clamps		$4.75 ea
You can mix & match types of clamps -- Band clamps do not crimp the tubing & make for easy disassembly		2.5" SS Band Clamps		$7.75 ea


For Mufflers which will fit these kits go here. We meet and beat Summit & Jegs Flowmaster Pricing.

GM G-Body (w/o Mufflers)
1978-88 Regal, Cutlass, Grand Prix, El Camino/Caballero, Monte Carlo, Malibu; '978-90 Caprice, LeSabre, Catalina, Bonneville & Olds Delta 88
'78-90 Caprice, LeSabre, Catalina, Bonneville & Olds Delta 88 -- will fit although hanging locations may have to be adapted. Might be necessary to use tips so tailpipes will come out to proper location as these B-Body vehicles are a little wider and longer than the regular G-Body vehicles for which they were designed.
	Pontiac Ram Air III & IV*	Buick 400,430,455	Olds 455/442 WZ
For Behind Wheel Tails
w/ Regular Balance Tube	GMGP25200 $483	GMGB25200 $483	GMGO25200 $483	Don't Forget Tailpipe Tips Stainless Clamp Upgrades Below
w/ "X" Pipe w/2.5"x2.5" "X"	GMGP25200X $538	GMGB25200X $538	GMG025200X $538

For Monte SS Tails
w/ Regular Balance Tube	GMGP25210 $500	GMGB25210 $500	GMGO25210 $500
w/ "X" Pipe w/2.5"x2.5" "X"	GMGP25210X $555	GMGB25210X $555	GMG025210X $555

For Behind Wheel Tails
	Chevy Big Block	Chevy Small Block	Olds 350
w/ Regular Balance Tube	GMGG25200 $483	GMGC25100 $483	GMGO25100 $498
w/ "X" Pipe w/2.5"x2.5" "X"	GMGC25200X $538	GMGC25100X $538	GMG025100X $553

For Monte SS Tails
w/ Regular Balance Tube	GMGC25200 $500	GMGC25100 $500	GMGO25100 $515
w/ "X" Pipe w/2.5"x2.5" "X"	GMGC25200X $555	GMGC25100X $555	GMG025100X $570

*RamAir Downpipes take special clamps. These fit 2.5" Tubing. One of each required, usually. Sometimes both will need to be 2-Bolt. You will need to check your manifolds to see which are needed. If you already have the original RamAir Flanges, they may be used - slight honing of inside may be required to slip over 2.5" tubing.
	2-Bolt	FLARA2.5-2	$24 ea w/System - $22.50 ea
	3-Bolt	FLARA2.5-3	$24 ea w/System - $22.50 ea

Stainless Clamp Upgrades
Above Balance Tube Systems utilize 6 Zinc U-Bolt Clamps
Kits with X-Pipes utilize 4 or 6 Zinc U-Bolts -- Many customers upgrade Band Clamps at the front and rear of mufflers only & some at end of tailpipes with SS U-Bolt Clamps. X-pipe systems come with additional clamps used only for installation. There is no need to upgrade them.		2.5" SS U-Bolt Clamps		$4.75 ea
You can mix & match types of clamps -- Band clamps do not crimp the tubing & make for easy disassembly		2.5" SS Band Clamps		$7.75 ea
For Mufflers which will fit these kits go here. We meet and beat Summit & Jegs Flowmaster Pricing.

Chevy Big Block	GMXC25200	$119/set
Chevy Small Block	GMXC25100	$119/set
Buick 400, 430, 455	GMXB25200	$119/set
Buick 350	GMXB25100	$119/set
Pontiac Ram Air III or IV*	GMXP25200	$119/set
Olds 455/442	GMXO25200	$119/set
Olds 403 (1977-79)	GMXO25210	$119/set
Olds 350	GMXO25100	$129/set
*RamAir Downpipes take special clamps. These fit 2.5" Tubing. One of each required, usually. Sometimes both will need to be 2-Bolt. You will need to check your manifolds to see which are needed. If you already have the original RamAir Flanges, they may be used - slight honing of inside may be required to slip over 2.5" tubing.
2-Bolt	FLARA2.5-2	$24 ea w/Downpipes- $22.50 ea
3-Bolt	FLARA2.5-3	$24 ea w/Downpipes - $22.50 ea