BMW Engine Parts for BMW 6 Series F06 (2013+)

Clear BMW chassis

Please ensure your correct model is selected

Turner Motorsport has everything you need to upgrade your BMW through our stages of performance or to keep your car in peak condition with our range of the latest in proven OEM cooling parts. Upgrade your cooling system and engine performance with the selections below to give your BMW a performance and reliability advantage.

Sub-Categories

Sort By:

Eldor - Corporate Logo
T#:29234309
Part#: 12138616153
In Stock
$ 43.99 USD
Free Shipping on orders $49 and up

Ignition coils are key to the efficiency and performance of your BMW. With a faulty coil the spark plug is not burning the air/fuel mixture properly and that can lead to problems anywhere in the engine and exhaust (including catalytic converters and O2 sensors). Problems with one or more coils will cause a fault code but not always a check engine light. A misfire code may be related to an ignition coil but could be from other things as well. Sometimes a visual inspection of a coil and coil boot will give an indication of a failure. You can also move coils around to different cylinder banks to see if the misfire code follows a suspect coil. We suggest always having one or two coils on hand to keep as spares.

This is the current replacement for some BMW 6 and 8-cylinder engines built in the late 2000s and after. BMW has made numerous changes to ignition coil part numbers in recent years but has approved this part number to work in the vehicles listed below. It's listed as a replacement coil for N20, N55, and S55 engines. In March 2015 BMW approved it for N51/N52 engines. This part number replaces the previous BMW part number 12137594937 for the cars listed below.

Sold per coil. Includes boot and connector.

Show More Show Less
OEM INA Accessory Belt Tensioner Assembly - N55 S55
We Price Match - Give Us A Call or Chat!
Ina - Corporate Logo
T#:394063
Part#: 11288604266
In Stock
$ 79.99

This product was last offered at the strikethrough price on
06-08-2026

$ 60.99 USD
Free Shipping on orders $49 and up
$ 60.99 USD
Free Shipping on orders $49 and up

Pulleys begin to squeak once they are reaching the end of their life span and the tensioners can fail, no longer applying enough tension to the accessory belt. If not replaced, tese can seize up and lead to a long host of problems that would leave you stranded on the side of the road. Prevent this with routine maintenance and replace your belts and pulleys every 50,000 miles to ensure continued reliability.

Fits the following BMW chassis:
F22/23 F87 F3X F07/10/11 F06/12/13 F01/02 F25/26 E70/71 F15/16

Fits the following BMW engines:
N55 3.0L, S65 3.0L

Show More Show Less
OEM INA Deflection Pulley - N55 3.0L, S55 3.0L
We Price Match - Give Us A Call or Chat!
Ina - Corporate Logo
T#:554453
Part#: 11288673720
In Stock
$ 45.99 USD
Free Shipping on orders $49 and up
Pulleys begin to squeak once they are reaching the end of their life span and if not replaced, can seize up and lead to a long host of problems that would leave you stranded on the side of the road.

CTA Tools - Corporate Logo
T#:640924
Part#: CTA4329
In Stock
$ 24.28 USD
Free Shipping on orders $49 and up
Swivel Spark Plug Socket 16MM

CTA Tools - Corporate Logo
T#:584137
Part#: CTA7654
In Stock
$ 35.72 USD
Free Shipping on orders $49 and up
Perfect for getting out spark plugs in hard to reach areas.
Fuel Pump Cam Follower - BMW/MINI B46 B48 B58
We Price Match - Give Us A Call or Chat!
Ina - Corporate Logo
T#:39768327
Part#: 06H109311B
In Stock
$ 29.99

This product was last offered at the strikethrough price on
09-02-2026

$ 28.95 USD
Free Shipping on orders $49 and up
$ 28.95 USD
Free Shipping on orders $49 and up

OEM INA Idler Pulley -- N55
We Price Match - Give Us A Call or Chat!
Ina - Corporate Logo
T#:402395
Part#: 11287615130
In Stock
$ 35.34

This product was last offered at the strikethrough price on
05-06-2026

$ 24.99 USD
Free Shipping on orders $49 and up
$ 24.99 USD
Free Shipping on orders $49 and up

This is an OEM INA Idler Pulley, also known as the roller pulley or deflection pulley. The idler pulleys are known to be the primary sources for 'belt squealing'. The pulley is also encased in rubber which will crack over time. If left without service the rubber could fail completely, chucking the belt and leaving you stranded. Replacement is a very simple procedure and can be done anytime the fan is off the engine (belt replacement, water pump service, alternator replacement, etc).

 OEM Schaeffler (INA, LuK, & FAG) is an engineering company that focuses on high-performance, precision manufacturing. With their individual brands INA, Luk, and FAG providing exceptionally high quality parts directly to BMW, as well as countless other automotive companies, their history of reliability and variety of offered parts makes Schaeffler a go-to replacement parts provider for all of us here at Turner Motorsport.

As a leading source of high performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts.  All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!

This item fits the following BMW Chassis:
E70,E71,F06,F07,F10,F12,F13,F15,F16,F01,F02,

Fits BMW Engines including:
N55

Show More Show Less
URO Valvetronic Actuator
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:34549585
Part#: 11377603979
In Stock
Sale - Save 15% $ 303.99

This product was last offered at the strikethrough price on
05-03-2026

$ 259.62 USD
Free Shipping on orders $49 and up
Sale - Save 15%
$ 303.99

This product was last offered at the strikethrough price on
05-03-2026

$ 259.62 USD
Free Shipping on orders $49 and up

The URO Valvetronic Actuator is a high-quality replacement part for BMW engines, designed to restore precise control over valve timing and lift, enhancing engine performance, fuel efficiency, and responsiveness. Built to meet strict OEM standards, this actuator helps optimize the power and efficiency of BMW engines, making it an ideal solution for maintenance or repair. Available from Turner Motorsport, the URO Valvetronic Actuator ensures a reliable fit and excellent performance for BMW owners.

  • Restores optimal control over valve timing for enhanced engine efficiency
  • Improves throttle response and provides smoother acceleration
  • Contributes to lower emissions and better fuel economy
  • High-quality construction built for long-lasting durability
  • Direct-fit replacement compatible with select BMW models
  • Available from Turner Motorsport, a trusted source for BMW parts

The URO Valvetronic Actuator is a cost-effective replacement that delivers the reliable, high-performance operation BMW owners expect.

Show More Show Less

URO Crankshaft Vibration Damper - 11237573655
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:28171559
Part#: 11237573655
In Stock
$ 341.99 USD
Free Shipping on orders $49 and up
A vibration damper is crucial for preventing shock load factors that could damage the crankshaft. If your damper is faulty, opt for this quality replacement from URO Parts for a lasting and comprehensive fix.
Show More Show Less

URO - Corporate Logo
T#:36032311
Part#: 13628644433
Ships in 2 Business Days
$ 72.99 USD
Free Shipping on orders $49 and up
$ 72.99 USD
Free Shipping on orders $49 and up
The MAP sensor, or manifold absolute pressure sensor, works with the engine computer to set the fuel curve and give readings to the engine computer. If yours is faulty, it may cause improper running, rich or lean fuel curves, or other general performance issues. Replace yours with this unit to keep your engine running at full potential. For N54 applications, you will need adapter harness T#583821- This TMAP sensor is typically used in high-boost applications for the N54
Show More Show Less
Performance Tool - Corporate Logo
T#:1809147
Part#: W5202
In Stock at Vendor
$ 21.99 USD
Free Shipping on orders $49 and up
Nitrile Butadiene Rubber
URO Oxygen Sensor - For BMW N54 N55 N20 Engines
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:37925873
Part#: 11787589475
In Stock
$ 69.99 USD
Free Shipping on orders $49 and up
$ 69.99 USD
Free Shipping on orders $49 and up

URO Oxygen Sensor - For BMW N54 N55 N20 Engines

The URO Oxygen Sensor - For BMW N54 N55 N20 Engines is a high-quality replacement designed to restore proper oxygen sensor function and optimize the engine air-fuel mixture. This direct-fit OE replacement ensures seamless compatibility with factory components, providing accurate fuel metering for improved engine efficiency and emissions control. The plug-and-play design simplifies installation, allowing for a hassle-free replacement without modifications. Built from high-quality materials, this oxygen sensor is engineered to withstand extreme exhaust system temperatures, ensuring long-lasting durability and consistent performance. Featuring alloy conductors that minimize electrical resistance, it delivers precise readings for optimal fuel efficiency. Backed by a 24-month unlimited mileage warranty, it offers peace of mind for BMW owners seeking reliable performance.

Key Benefits:

  • Direct-fit OE replacement restores proper oxygen sensor function and fuel metering
  • Plug-and-play connection for quick and hassle-free installation
  • High-temperature resistant materials ensure long-lasting durability
  • Alloy conductors minimize electrical resistance for accurate sensor operation
  • 24-month unlimited mileage warranty for added confidence

Upgrade your BMW N54, N55, or N20 engine with the URO Oxygen Sensor and experience improved efficiency, emissions control, and long-term reliability.

Show More Show Less


Performance Tool - Corporate Logo
T#:2242223
Part#: W80573
Ships in 2 Business Days
$ 22.99 USD
Free Shipping on orders $49 and up
Use to install pistons on most passenger cars and truck engines
Performance Tool - Corporate Logo
T#:2242226
Part#: W80533
Ships in 2 Business Days
$ 20.25 USD
Free Shipping on orders $49 and up
Extended socket length reaches confined areas.

Ina - Corporate Logo
T#:42301983
Part#: ZC0219
In Stock
$ 80.99

This product was last offered at the strikethrough price on
06-29-2026

$ 62.99 USD
Free Shipping on orders $49 and up
$ 62.99 USD
Free Shipping on orders $49 and up
Ensure your BMW runs like new with the precision and durability of this OEM INA timing chain - engineered for performance, built for reliability.

Hydraulic Valve
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:35863146
Part#: 11417622768
Back Ordered
$ 93.99 USD
Free Shipping on orders $49 and up
This valve is located on the front of the engine block and is responsible for keeping hydraulic pressures in check.
High-Pressure Fuel Pump & Fuel Filter - N54/N55
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:50031899
Part#: 13518604231
In Stock
$ 220.99 USD
Free Shipping on orders $49 and up
$ 220.99 USD
Free Shipping on orders $49 and up
The fuel pump is the lifeblood of your vehicle, delivering fuel to the engine to keep it running smoothly. If your fuel pump fails, this URO replacement provides a direct-fit solution. Additionally, if your fuel filter is clogged or contaminated, the entire fuel pump assembly should be replaced to ensure proper fuel flow and reliable performance.
Show More Show Less

BMW Headbolt Socket - T60
Perfect for removal and installation of head bolts
CTA Tools - Corporate Logo
T#:2393394
Part#: CTA9244
In Stock
$ 35.72

This product was last offered at the strikethrough price on
06-08-2026

$ 31.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
$ 35.72

This product was last offered at the strikethrough price on
06-08-2026

$ 31.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
Designed for BMW cylinder head bolts
CTA Tools - Corporate Logo
T#:3729823
Part#: CTA1067
In Stock
$ 31.43 USD
Free Shipping on orders $49 and up
Designed for extreme torque

Idler Pulley
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:26271781
Part#: 11288673720
In Stock
$ 29.99 USD
Free Shipping on orders $49 and up

URO Turbo Coolant Line - BMW F1X F0X N63 4.4L
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:37925878
Part#: 11537577013
Ships in 3 Business Days
$ 37.74 USD
Free Shipping on orders $49 and up
The URO Turbo Coolant Line is designed to restore proper turbocharger cooling and maintain peak engine performance. This direct-fit OE replacement ensures optimal coolant flow by matching the exact length and shape of the original turbo coolant line. Manufactured from high-quality, heat-resistant materials, it withstands extreme temperatures and prolonged coolant exposure, ensuring long-lasting durability. Equipped with factory-style end fittings, this coolant line allows for an easy, leak-free installation, making it the ideal solution for maintaining your BMW’s turbo system efficiency.
Show More Show Less
Autel - Corporate Logo
T#:2914116
Part#: AL329
Ships in 2 Business Days
$ 49.99 USD
Free Shipping on orders $49 and up
OBDII Code Reader
Oil Filter Cap
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:381080
Part#: 11427615389
In Stock
$ 31.99

This product was last offered at the strikethrough price on
05-07-2026

$ 22.99 USD
Free Shipping on orders $49 and up
$ 22.99 USD
Free Shipping on orders $49 and up
Secures the oil filter to the filter housing


Performance Tool - Corporate Logo
T#:2242222
Part#: W80572
Ships in 2 Business Days
$ 21.99 USD
Free Shipping on orders $49 and up
Use to install pistons on most passenger cars and truck engines
URO Fuel Vapor Leak Detection Pump - BMW F07 F10 F06
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:43750224
Part#: 16137448091
Ships in 2 Business Days
$ 116.99 USD
Free Shipping on orders $49 and up
Leak detection pump tests the fuel containment system for vapor leaks to the atmosphere. A failed pump often turns on the check engine light.
URO - Corporate Logo
T#:33446276
Part#: 11427573212
Ships in 2 Business Days
$ 143.99 USD
Free Shipping on orders $49 and up
An engine oil thermostat allows oil to bypassing the cooler until the oil has reached its minimum operating temperature.

POR-15 - Corporate Logo
T#:1575841
Part#: POR49216
Ships in 7 Business Days
$ 40.99 USD
Free Shipping on orders $49 and up
POR-15 Fuel Tank Sealer was formulated and developed in our own laboratories due to the demand for a high-tech sealer impervious to all fuels, including the new Stage II fuels which have a high alcohol content.
Show More Show Less

CTA Tools - Corporate Logo
T#:587213
Part#: CTA2893X05
Ships on Oct 6, 2026
$ 72.04 USD
Free Shipping on orders $49 and up
If you have to remove your harmonic balancer pulley, you must secure your crankshaft. This is the exact tool you need Loosens central crankshaft bolt on N63 & S63 engines Services various 2008-2013 BMW Basic Instructions for use: Removal: Remove the engine drive belt. Use the Crankshaft Pulley Holder, to prevent the crankshaft from rotating while loosening the crankshaft balancer bolt. Remove the crankshaft balancer bolt. Discard the bolt. Remove the crankshaft balancer. Install: Install the crankshaft balancer. Install a NEW crankshaft balancer bolt. Use the Crankshaft Pulley Holder to prevent the crankshaft from rotating while tightening the crankshaft balancer bolt. Tighten the bolt to Manufacturer recommended ft. lbs. Install the engine drive belt.
Show More Show Less
CTA Tools - Corporate Logo
T#:641654
Part#: CTA3235
In Stock
$ 1.99 USD
Free Shipping on orders $49 and up

CTA Tools - Spark Plug Gapper is an essential tool for accurately setting and measuring spark plug gaps, ensuring optimal engine performance. This precision tool is designed for both professional and DIY mechanics, providing reliable gap adjustments for a variety of engine applications.

  • Versatile Measurement Range: The ramp gauge measures gaps from .020 to .100 inches (0.50 to 2.5 mm), accommodating a wide range of spark plug specifications.
  • Precision Engineering: Engineered to deliver accurate gap settings, improving engine efficiency and performance.
  • Made in the USA: Crafted with high-quality materials to ensure durability and long-lasting performance.
  • Easy to Use: Simple design makes gap adjustments quick and straightforward, enhancing convenience in any workshop or garage setting.

Upgrade your toolset with the CTA Tools - Spark Plug Gapper to achieve precise spark plug gaps and optimize your engine’s performance.

Show More Show Less

OEM Ina Intake Hydraulic Tappet - BMW N52 N54 N55 N20 S55
We Price Match - Give Us A Call or Chat!
Ina - Corporate Logo
T#:591661
Part#: 11337548690
In Stock
$ 15.99 USD
Free Shipping on orders $49 and up
Hydraulic valve lifter
Electrical Connector - Priced Each
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:367145
Part#: 61132359999
In Stock
$ 18.99 USD
Free Shipping on orders $49 and up
2 pin used in many locations on late model BMWs

URO - Corporate Logo
T#:639329
Part#: 11117547842
Ships in 2 Business Days
$ 13.99 USD
Free Shipping on orders $49 and up
$ 13.99 USD
Free Shipping on orders $49 and up
URO Parts is one of the leading manufacturers of high quality direct replacement aftermarket components, covering a wide range of makes and models. All of their replacement parts are manufactured to ISO 9000 certification standards, so you can expect long lasting performance from URO Parts.
Show More Show Less

URO Oil Filler Cap - E90 E92 E60 F10 F01 E83 F25 F70
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:50031925
Part#: 11128655331
In Stock
$ 14.99 USD
Free Shipping on orders $49 and up
Replaces broken or damaged oil filler cap.
URO Front Crank Seal - N52, N54, N55
For vehicles with a production date from 02/2011
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:55749587
Part#: URO-013873
In Stock
New Item
$ 12.99 USD
Free Shipping on orders $49 and up
$ 12.99 USD
Free Shipping on orders $49 and up
URO Parts delivers a precision-engineered sealing solution that meets or exceeds rigorous operating standards, designed to withstand high RPM heat cycles and intense crankcase pressure
CTA Tools - Corporate Logo
T#:641668
Part#: CTA2554
In Stock
$ 8.55

This product was last offered at the strikethrough price on
08-23-2026

$ 7.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
$ 8.55

This product was last offered at the strikethrough price on
08-23-2026

$ 7.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
High quality steel blades with 4 different patterns for removal & installation of O-Rings, Oil Seals & more


URO Engine Oil Pan - BMW F0X/F1X 5
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:49996978
Part#: 11137556664
Ships in 2 Business Days
$ 850.99 USD
Free Shipping on orders $49 and up
Replaces broken or aged oil pan.
CTA Tools - Corporate Logo
T#:641657
Part#: CTA3238
In Stock
$ 3.99 USD
Free Shipping on orders $49 and up
Always check gap on your new spark plugs
CTA Tools - Corporate Logo
T#:641669
Part#: CTA2028
In Stock
$ 9.27 USD
Free Shipping on orders $49 and up
Installs and removes piston rings without damaging

Performance Tool - Corporate Logo
T#:641935
Part#: WLMW5203
In Stock
$ 19.99 USD
Free Shipping on orders $49 and up
Many uses around the garage and home

Oil Filter Housing Gasket - Upgraded Rubber
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:598883
Part#: 11427537293
In Stock
$ 11.89 USD
Free Shipping on orders $49 and up
This gasket seals the oil filter housing to the attachment point on the side of the block
Intake Gasket Set
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:585910
Part#: 11617547242
In Stock
$ 13.99 USD
Free Shipping on orders $49 and up
Intake gaskets go in between the head and the intake runners. ECS recommends replacing these gaskets when doing removal and re-install of intake manifolds.

High Pressure Fuel Pump Gasket
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:592759
Part#: 11127588416
In Stock
$ 7.99 USD
Free Shipping on orders $49 and up
A bad fuel pump gasket can spell all sorts of trouble when you least expect it. Commonly, low fuel pressure will cause a vehicle to not start or run, or can cause it to die out on the road.
URO Valve Cover Bolt - BMW
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:32781448
Part#: 11127584156
In Stock
Sale - Save 12% $ 9.99

This product was last offered at the strikethrough price on
05-15-2026

$ 8.84 USD
Free Shipping on orders $49 and up
Sale - Save 12%
$ 9.99

This product was last offered at the strikethrough price on
05-15-2026

$ 8.84 USD
Free Shipping on orders $49 and up
Replace your stripped or missing valve cover bolt to ensure a tight seal of the valve cover to the cylinder head. Guaranteed fitment Broken valve cover bolts can create troublesome vacuum leaks and allow leaking oil to damage engine components URO valve cover bolts are precisely manufactured to OE dimensions for easy installation and secure attachment Durable high-quality material withstands oil vapor and intense engine heat 24-Month Unlimited Mileage Warranty
Show More Show Less

Performance Tool - Corporate Logo
T#:1855998
Part#: W80535
Ships in 3 Business Days
$ 1.99

This product was last offered at the strikethrough price on
08-26-2026

$ 1.54 USD
Free Shipping on orders $49 and up
$ 1.54 USD
Free Shipping on orders $49 and up
Easy to read markings to set gaps quickly and easily.

CTA Tools - Corporate Logo
T#:640925
Part#: CTA2450
In Stock
$ 9.27 USD
Free Shipping on orders $49 and up

Plastigage Set is an essential tool for accurately measuring the clearances of engine rod and main bearings without the need for expensive micrometers. This set is ideal for ensuring proper engine assembly by helping you choose the correct size replacement bearing inserts. Designed to cover all automotive engines, the Plastigage Set provides precise measurements to maintain optimal engine performance.

  • Accurate Measurements: Measures clearances of engine rod and main bearings, ensuring proper fitment.
  • Cost-Effective: Eliminates the need for expensive micrometers, offering a budget-friendly solution.
  • Universal Application: Suitable for all automotive engines, making it versatile for various applications.
  • Complete Set: Includes sizes .001" - .003" (green) and .002" - .006" (red) to cover a wide range of measurements.
Show More Show Less
Valve Cover Bolt - Priced Each
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:32781449
Part#: 11129454322
In Stock
$ 9.59 USD
Free Shipping on orders $49 and up
Performance Tool - Corporate Logo
T#:1855974
Part#: W942
Ships on Oct 16, 2026
$ 8.99 USD
Free Shipping on orders $49 and up
Includes straight, angled and combination picks


URO Variable Timing Solenoid Seal / O-Ring
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:37892094
Part#: 11367561852
In Stock
$ 7.99 USD
Free Shipping on orders $49 and up

URO Variable Timing Solenoid Seal / O-Ring

URO Variable Timing Solenoid Seal / O-Ring is a direct replacement designed to eliminate oil leaks caused by worn or cracked original seals in BMW engines. Engineered for durability, this high-quality O-ring withstands extreme engine heat and continuous oil exposure, ensuring a long-lasting and reliable seal.

  • Instantly resolves troublesome oil leaks by replacing worn or hardened OE seals
  • Direct-fit design allows for easy installation without modifications
  • Manufactured from high-quality materials to resist cracking and deterioration from heat and oil exposure
  • Ensures proper sealing of the variable timing solenoid for optimal engine performance
  • Backed by a 24-month unlimited mileage warranty for reliability and peace of mind

The URO Variable Timing Solenoid Seal / O-Ring is a cost-effective solution to maintain peak engine efficiency and prevent potential oil leaks in BMW vehicles.

Show More Show Less
Throttle Body Gasket
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:593011
Part#: 13547563377
Ships in 2 Business Days
$ 4.99 USD
Free Shipping on orders $49 and up
Seals the throttle body to the intake manifold