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2012 Mercedes Benz S550 Base Sedan 221.173 V8 4.6L

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Your Vehicle 2012 Mercedes Benz S550 Base Sedan 221.173 V8 4.6L
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2012 Mercedes Benz S550 Base Sedan 221.173 V8 4.6L Performance Fueling Parts

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Port Injection Plugs

ES#4690214 - PRINJPLGS - Port Injection Plugs - Use these in replacement of any standard short body EV14 style injector. - Precision Raceworks - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Use these in replacement of any standard short body EV14 style injector.

Brand:
Precision Raceworks - Corporate Logo
ES#:
4690214
Mfg#:
PRINJPLGS
Ships in 9 Business Days
Starting at $9.99 USD
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Free Shipping
on orders $49 and up

Mercedes M278 E550/CLS550/S550 Stage 3 Low Pressure Fuel Pump

For those trying to make big power, this can push you up to 1200WHP with supporting mods, and tuning.

Brand:
Spool Performance - Corporate Logo
ES#:
4736465
Mfg#:
SP-LS3-M278
Special Order: No Guaranteed ETA
$1199.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Mercedes M278 Spool FX-170 Upgraded High Pressure Pump Kit

The stock HPFP on the M278 Motors is severely limited in capacity when trying to raise the output of the motor. The FX-170 adds 50% more flow, raising the fueling limits and helping you achieve more power!

Brand:
Spool Performance - Corporate Logo
ES#:
4736464
Mfg#:
SP-FX-M278
Special Order: No Guaranteed ETA
$3499.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Performance Fueling Parts

When your fuel system is at its limit, you can't make more power since your stock fuel system isn't able to deliver enough fuel. Not only can this create 'lean' conditions in the mixture, but it means you're leaving power on the table. Upgrade your fuel system with our performance fueling options from injectors to management and even methanol and other additives.

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Manufacturer names and/or part numbers are used only for identification purposes.

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