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JHM Intake Elbow Heater Bypass Kit for B6-B7 S4, B7-RS4 and C5-allroad w chain V8



Sale Price $12.74


Introducing the JHM 4.2L 40v V8 Intake Elbow Heater Bypass Kit.


What does this kit do? From the factory the 4.2L V8 comes equipped with 2 coolant lines that heat up the intake elbow between the throttle body and the intake manifold. Why do they do this? This is a precaution for climates that are colder than 32f. They heat the intake elbow up to warm up the throttle body to help prevent throttle plate icing and a sticky throttle. So by warming up the intake elbow with 200f coolant this won't happen once the car is warm. However this is unnecessary in temps above 32f and only slows your car down by heating up the intake air. And the best part is that it can be installed or removed in only a minute or 2 and can't be seen once your engine cover is installed. This kind of mod has been done on other such cars like Mustangs and Subarus for years. We have found that this modification works great to keep your car faster once warmed up instead of slowing down when the hot coolant begins running through the elbow. With this modification and our JHM intake spacers together the gains are excellent for the money spent.


Click to enlarge picture
Audi Intake Elbow Heater Bypass Kit for B6-B7 S4

FSI Engines Click HERE

Fitment: 4.2L 40v (5 valve per cylinder) V8 in the B6/B7 S4 and others with the 4.2L 40v V8.


1x - Brass fitting to connect lines together
2x - Stainless hose clamps (to replace the one time use clamps removed during the install)
2x - Rubber Caps for capping off coolant ports on Intake Elbow


NOTE: Some of the early 04 models did not have these coolant hoses. Check to make sure you have this before purchasing.


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This product fits the following vehicles:
Make Model Chassis Engine
Audi S4 B7 (2005.5-2009) 4.2l V8 40v
Audi allroad C5 (2001-2005) 4.2l V8 40v
Audi S4 B6 (2003-2005) 4.2l V8 40v
Audi RS4 B7 (2006-2009) 4.2l V8 32v FSI
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You're reviewing: JHM Intake Elbow Heater Bypass Kit for B6-B7 S4, B7-RS4 and C5-allroad w chain V8
Off-road Use

By Purchasing any Off-Road use ONLY products from JH Motorsports, Inc. I acknowledge and understand the following disclosure. (This notice is located at the bottom of the page description of affected products on our website.)

Vehicle Code § 27156:
(b) No person shall operate or leave standing upon a highway a motor vehicle that is required to be equipped with a motor vehicle pollution control device under Part 5 (commencing with Section 43000) of Division 26 of the Health and Safety Code or any other certified motor vehicle pollution control device required by any other state law or any rule or regulation adopted pursuant to that law, or required to be equipped with a motor vehicle pollution control device pursuant to the National Emission Standards Act (42 U.S.C. Secs. 7521 to 7550, inclusive) and the standards and regulations adopted pursuant to that federal act, unless the motor vehicle is equipped with the required motor vehicle pollution control device that is correctly installed and in operating condition. No person shall disconnect, modify, or alter any such required device.
(c) No person shall install, sell, offer for sale, or advertise any device, apparatus, or mechanism intended for use with, or as a part of, a required motor vehicle pollution control device or system that alters or modifies the original design or performance of the motor vehicle pollution control device or system.

Health and Safety Code § 43000:
43001. The provisions of this part shall not apply to:
(a) Racing vehicles.

As the aforementioned code sections outline, it is against the law to operate or use a vehicle on public streets or highways with modified, altered, or disconnected motor vehicle pollution control devices. This may include but is not limited to, Evaporative Fuel Controls, Catalysts, DPF, PTOX, PCV Systems, Exhaust Gas Recirculation Systems, Oxygen Sensors, Thermostatic Air Cleaners, Air Intake Systems, Fuel Injectors, Regulators, Adjustable Cam Gears, ECU Programming, Mapping, or other Computer Modifications. Air Pumps, Air Injection, Timing, and any other Emission System Modification(s).

Purchaser acknowledges and certifies to JH Motorsports Inc., that Purchasers vehicle will only be used for racing applications or off road vehicle use only. Purchaser requests these modifications for the purpose of enhancing the vehicle for competitive Racing Applications and will not use this vehicle on public streets or highways. Purchaser agrees to indemnify JH Motorsports Inc., all employees, officers, owners, and subsidiaries for any civil or criminal liability arising out of use of Purchasers vehicle on public streets or highways as Purchaser has been duly notified of the laws and regulations regarding disconnecting, alteration, or modification of a vehicle’s pollution control devices. Purchaser understands and has been advised the driving of a vehicle on public streets or highways could result in criminal or civil penalties.

Prop 65

Warning: This product may contain a chemical known to the State of California to cause cancer, birth defects, or other reproductive harm.

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Q and A

Product Questions


Bought this kit but I am not sure how to install it on my 2007 B7 RS4. Any pdf`s or videos showing how to do it will help a lot please.
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