Agency Power Catless headers? Anyone? - BMW M5 Forum and M6 Forums
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post #1 of 29 Old 16th May 2012, 07:09 PM Thread Starter
STS-V
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Agency Power Catless headers? Anyone?

Hello all,

I have the opportunity to purchase some catless Agency Power headers. Ive searched, but couldn't find any concrete info if they were worth it or not. Anyone have any advice?

Modifications Include:

Vossen VVS-CV3 Black/Machined Concave Wheels - 20x10.5 & 20x9
15% Tint All Windows / 50% Tint Windshield
Plastidipped Front Kidney Grilles / Lower Front Grille / Side Grilles
All Grilles Painted Carbon Matte w/ Shadowcast
Rear Tips Painted Carbon Matte w/ Shadowcast
Tinted Side Marker Lights
Silver/Black Headlight Turn Signals
All Emblems Replaced With Black/Carbon Fiber Emblems
Lumma Carbon Fiber Roof / Trunk Spoiler - Body Color Painted
CarbonFounder Carbon Fiber Front Bumper Splitter - Body Color Painted
Carbon Fiber Mirrors
Carbon Fiber Emergency Brake Handle, Steering Wheel Trim
Magnaflow Section 1-3 Exhaust System
Eibach Pro-Kit Lowering Springs
Tail Light / Reverse Lights Tinted
LED License Plate Lights
Front Turn Signals Tinted
HID 6K Angel Eye Rings
Silver Painted ///M Calipers / Hats
Rear Spacers / Black Lug Nuts

Performance:

RPI Scoops
RPI Filters
RPI Block Off Plates
Evolution Underdrive Pulley & Belt
Custom Magnaflow Exhaust w/ X Pipe

Recent Maintenance:

Windshield Trim Replaced
New Dual Mass Flywheel & OEM BMW Clutch Kit
New OEM Alternator, OEM Battery, Steering Wheel Angle Sensor, Crank & Camshaft Position Sensors
All Modules and Programming Updated to Latest Firmware
SMG Pump Replaced
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post #2 of 29 Old 16th May 2012, 07:13 PM Thread Starter
STS-V
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Also, does anyone know the approximate labor required and steps to replace the headers?

Modifications Include:

Vossen VVS-CV3 Black/Machined Concave Wheels - 20x10.5 & 20x9
15% Tint All Windows / 50% Tint Windshield
Plastidipped Front Kidney Grilles / Lower Front Grille / Side Grilles
All Grilles Painted Carbon Matte w/ Shadowcast
Rear Tips Painted Carbon Matte w/ Shadowcast
Tinted Side Marker Lights
Silver/Black Headlight Turn Signals
All Emblems Replaced With Black/Carbon Fiber Emblems
Lumma Carbon Fiber Roof / Trunk Spoiler - Body Color Painted
CarbonFounder Carbon Fiber Front Bumper Splitter - Body Color Painted
Carbon Fiber Mirrors
Carbon Fiber Emergency Brake Handle, Steering Wheel Trim
Magnaflow Section 1-3 Exhaust System
Eibach Pro-Kit Lowering Springs
Tail Light / Reverse Lights Tinted
LED License Plate Lights
Front Turn Signals Tinted
HID 6K Angel Eye Rings
Silver Painted ///M Calipers / Hats
Rear Spacers / Black Lug Nuts

Performance:

RPI Scoops
RPI Filters
RPI Block Off Plates
Evolution Underdrive Pulley & Belt
Custom Magnaflow Exhaust w/ X Pipe

Recent Maintenance:

Windshield Trim Replaced
New Dual Mass Flywheel & OEM BMW Clutch Kit
New OEM Alternator, OEM Battery, Steering Wheel Angle Sensor, Crank & Camshaft Position Sensors
All Modules and Programming Updated to Latest Firmware
SMG Pump Replaced
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post #3 of 29 Old 16th May 2012, 09:40 PM
bulim5
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I know PSI in Orlando uses them for all of ther G Power kits. Im guessing they got to be good. Let me know where you are sourcing your's. I saw another post where you mentioned $1850?

Thanks

Brad
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post #4 of 29 Old 16th May 2012, 10:02 PM
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Header install ranges between 800-1000.

2006 Low Compression Supercharged VT2-650+ BMW M5

Performance: ESS Supercharged VT2-650 / Custom ESS Alpha N Tune / Sprint Booster V2 / RPI GTS Exhaust / RPI SV1 Oil Cooler / RPI Jet Hot Coated Headers/ Howerton Engineering - Aquamist HFS-3 Methanol Injection System.
Engine: 10.1:1 Low Compression Engine Build / Mahle Custom Pistons / Carrillo Rods / Custom Fuel System / Custom Rod Bearings.
Suspension: KW V3 Coilovers / Dinan Rear Sway Bar / Dinan Front Roll Control / Dinan Monoballs.
Handling: Daily Setup: 3 Pc ADV.1 05 wheels F 20x9 / 255/35/20 R 20x10.5 / 295/30/20 / Michelin PSS Tires / 12mm Rogue Engineering Spacers.
Track Setup: Apex Arc-8 wheels F 18x9 / Hoosier A6 P245/40ZR-18 R 18x10.5 / Hoosier A6 P315/30ZR-18.
Exterior: Vorsteiner Rep Hood / Gloss Black Roof Wrap / Smoked LED Side Markers / Limo Tint / Custom Headlights with Orion V2 Rings / LCI Fins / LCI Clear Eyebrows / Custom Blacked Out LCI Tail Lights and Miranda Bruce V6.1 Cables / Hartge Rep Urethane Front Lip / AC Schnitzer Roof Spoiler / Matte Black Kidneys Grills / Gloss Black Side Gills / Gloss Black Rear M5 Emblem / Black/White CF Hood &Trunk Roundel / Rear Bumper Mesh / M5 Puddle lights / Electric Fold Away Front License Plate Frame / CF Rear Diffuser / CF Side Skirt Extensions /CF Rear Side Extensions.
Interior: White LED Interior Lighting / Black/White CF Steering Wheel Roundel / Alcantara-CF Flat Bottom Steering Wheel / Handbrake Handle/Pedals / Hardwired Valentine 1 / P3Cars BMW E60 Vent Integrated Digital Interface / Custom SC Kit Color Scheme.
Programming: Mirror Fold-up / Window Roll-up / Sunroof Closure / Auto S5 at Start up / Euro Launch Control / iDrive Acceptance Delete / Rev Limiter 8600 / Top Speed Limiter Removed.
Braking: RDSports 6 Piston F 380/35mm and 4 Piston R 380/32mm Big Brake Kit.
Misc Upgrades: Soft Close Doors / HUD/ Active Seats.
The journey continues......

Dynojet 698rwhp / 498ft lb trq.
Old 60-130mph 8.29secs....new time to come.

RIDES:
2001 Porsche 996 Twin Turbo, GT3 rear sway bar, Rennline CF front strut bar, Tarrett drop links and toe links, GT3 control arms, BC coilovers, Sharkwerks EVOM tune, RPi exhaust, Sharkwerks sports clutch, HRE 540r wheels, K16 Billet turbos, GTRS Intercoolers: 535rwhp, 550ft lbs trq.
2004 Infiniti G35 APS Twin Turbo with built motor and fully built transmission. 520rwhp and 550ft trq. SOLD but not forgotten
2006 BMW M5 VT2-650 low compression supercharged: 698rwhp on Dynojet.
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post #5 of 29 Old 16th May 2012, 10:04 PM
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post #6 of 29 Old 16th May 2012, 10:06 PM Thread Starter
STS-V
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Is there a step by step guide or summarized guide to replacing the headers?

Modifications Include:

Vossen VVS-CV3 Black/Machined Concave Wheels - 20x10.5 & 20x9
15% Tint All Windows / 50% Tint Windshield
Plastidipped Front Kidney Grilles / Lower Front Grille / Side Grilles
All Grilles Painted Carbon Matte w/ Shadowcast
Rear Tips Painted Carbon Matte w/ Shadowcast
Tinted Side Marker Lights
Silver/Black Headlight Turn Signals
All Emblems Replaced With Black/Carbon Fiber Emblems
Lumma Carbon Fiber Roof / Trunk Spoiler - Body Color Painted
CarbonFounder Carbon Fiber Front Bumper Splitter - Body Color Painted
Carbon Fiber Mirrors
Carbon Fiber Emergency Brake Handle, Steering Wheel Trim
Magnaflow Section 1-3 Exhaust System
Eibach Pro-Kit Lowering Springs
Tail Light / Reverse Lights Tinted
LED License Plate Lights
Front Turn Signals Tinted
HID 6K Angel Eye Rings
Silver Painted ///M Calipers / Hats
Rear Spacers / Black Lug Nuts

Performance:

RPI Scoops
RPI Filters
RPI Block Off Plates
Evolution Underdrive Pulley & Belt
Custom Magnaflow Exhaust w/ X Pipe

Recent Maintenance:

Windshield Trim Replaced
New Dual Mass Flywheel & OEM BMW Clutch Kit
New OEM Alternator, OEM Battery, Steering Wheel Angle Sensor, Crank & Camshaft Position Sensors
All Modules and Programming Updated to Latest Firmware
SMG Pump Replaced
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post #7 of 29 Old 17th May 2012, 02:05 AM
dhirm5
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If you're going to go with headers, I'd suggest sticking with RPI.

Look at this post: Agency Power Exhaust?


2014 M5 Comp Pack
Azurite Black over Silver Stone II Full Leather

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post #8 of 29 Old 17th May 2012, 03:58 AM
Jaredw
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I have catted AP headers...install was about $800. I've been pleased with mine...Car sounds better, feels stronger in the top end...I never dynoe'd before and after...so I can't give numbers.
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post #9 of 29 Old 17th May 2012, 05:13 AM
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Quote:
Originally Posted by bulim5 View Post
That is cheap, PSI in Orlando is charging me $1,500? Hmm, ripoff maybe?
Total ripoff.

2006 Low Compression Supercharged VT2-650+ BMW M5

Performance: ESS Supercharged VT2-650 / Custom ESS Alpha N Tune / Sprint Booster V2 / RPI GTS Exhaust / RPI SV1 Oil Cooler / RPI Jet Hot Coated Headers/ Howerton Engineering - Aquamist HFS-3 Methanol Injection System.
Engine: 10.1:1 Low Compression Engine Build / Mahle Custom Pistons / Carrillo Rods / Custom Fuel System / Custom Rod Bearings.
Suspension: KW V3 Coilovers / Dinan Rear Sway Bar / Dinan Front Roll Control / Dinan Monoballs.
Handling: Daily Setup: 3 Pc ADV.1 05 wheels F 20x9 / 255/35/20 R 20x10.5 / 295/30/20 / Michelin PSS Tires / 12mm Rogue Engineering Spacers.
Track Setup: Apex Arc-8 wheels F 18x9 / Hoosier A6 P245/40ZR-18 R 18x10.5 / Hoosier A6 P315/30ZR-18.
Exterior: Vorsteiner Rep Hood / Gloss Black Roof Wrap / Smoked LED Side Markers / Limo Tint / Custom Headlights with Orion V2 Rings / LCI Fins / LCI Clear Eyebrows / Custom Blacked Out LCI Tail Lights and Miranda Bruce V6.1 Cables / Hartge Rep Urethane Front Lip / AC Schnitzer Roof Spoiler / Matte Black Kidneys Grills / Gloss Black Side Gills / Gloss Black Rear M5 Emblem / Black/White CF Hood &Trunk Roundel / Rear Bumper Mesh / M5 Puddle lights / Electric Fold Away Front License Plate Frame / CF Rear Diffuser / CF Side Skirt Extensions /CF Rear Side Extensions.
Interior: White LED Interior Lighting / Black/White CF Steering Wheel Roundel / Alcantara-CF Flat Bottom Steering Wheel / Handbrake Handle/Pedals / Hardwired Valentine 1 / P3Cars BMW E60 Vent Integrated Digital Interface / Custom SC Kit Color Scheme.
Programming: Mirror Fold-up / Window Roll-up / Sunroof Closure / Auto S5 at Start up / Euro Launch Control / iDrive Acceptance Delete / Rev Limiter 8600 / Top Speed Limiter Removed.
Braking: RDSports 6 Piston F 380/35mm and 4 Piston R 380/32mm Big Brake Kit.
Misc Upgrades: Soft Close Doors / HUD/ Active Seats.
The journey continues......

Dynojet 698rwhp / 498ft lb trq.
Old 60-130mph 8.29secs....new time to come.

RIDES:
2001 Porsche 996 Twin Turbo, GT3 rear sway bar, Rennline CF front strut bar, Tarrett drop links and toe links, GT3 control arms, BC coilovers, Sharkwerks EVOM tune, RPi exhaust, Sharkwerks sports clutch, HRE 540r wheels, K16 Billet turbos, GTRS Intercoolers: 535rwhp, 550ft lbs trq.
2004 Infiniti G35 APS Twin Turbo with built motor and fully built transmission. 520rwhp and 550ft trq. SOLD but not forgotten
2006 BMW M5 VT2-650 low compression supercharged: 698rwhp on Dynojet.
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post #10 of 29 Old 17th May 2012, 05:51 AM
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Yep install should be $800-$1000. I've heard AP headers are good buys for the money. Another good option is Evolve for the money. RPI is also very good but a lot more money and probably not that much better as there are Lonny so many ways to design the headers. If you want to go big then look at SS.

As for a step by step I haven't seen one but it requires you to lift the engine or suspend the engine and lower the subframe. That is why the cost is so high for the install.
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