JHM RS5 Headers - First set

A5/S5/RS5
#46

Ok keep us posted!

I guess mine will sound different, as does Steve’s since we all have various exhausts. Mine will be a true, full JHM system.

JHM got my OEM manifolds today, so should be about a week, then shipping, then Audi will put everything back together. I’m having them do the transmission fluid while they’re at it, plus some new bolts and gaskets. Car should be minty fresh!

I’m hoping I don’t run into the LWCP misfires, and just need the new catless Stage 2 file, as its -30 here and car will be parked until spring, ± another 1.5mths.

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#47

Ok, decide to start the car and no start. Get an error (VCDS of Starter failure or system fault). ElsaWin wiring diagram and check the power to the Solenoid (you can’t get to the Solenoid itself) and there is power when the Start button is pushed. Shit, gonna have to pull the transmission to get to the starter. Well, I pull the steering rack and get a long screwdriver onto the Solenoid plug and it is loose, a piece of the little locking tab (brittle drops into my hand). I set the screwdriver with pressure onto the plug and wire it in place and go hit the starter button and she fired up in less than 2 seconds of cranking. This 26k motor last ran when the car it came from wrecked in early 2018, 3yrs ago. I did scope and prelube the cylinders and cranked the motor over when it was out of the car enough to get oil pressure to the valvetrain. I was suprised. I brought the wife out to video another start and idle, only JHM headers and the AWE resonators, not muffllers on the car. Raspy at start up but surprisingly civil at idle. Is there anyway to upload a 5MB video on here?

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#48

BEAT me to it by 7 days LOL!

That sounds really good, nice and deep - congrats!

Edit - Just re-watched. Are the resonators in the AWE downpipes, or the mid section?

I am unsure what mine will sound like with the full JHM setup as they only have 2 small resonators in the mid-section, and then of course the rear mufflers. Would you consider the JHM downpipes? I guess your 2.75" headers are going down to the AWE 2.5" setup.

I thought it was going to sound more like the RS4, a little higher pitched (like this: https://www.instagram.com/p/CBTJ0TpJ9qq/)

#49

The Resonators are a slip fit onto the bottome of the AWE Downpipes, they Downpipes and Resonators are AWE. I’ll have to see if I can move the Resonators back a little in order to install and X-pipe at the bottom of the downpipes and before the Resonator. Planning on using this one.

X-pipe
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Looks like a seam but they are seamless, what looks like a line/seam is just a reflection.

#50

Makes sense. JHM has an xpipe right at the end of the downpipes, then right after that, 2 small resonators, then all the way back to the valved mufflers.

Any chance you can take more clips. Do you have a decibel reader on your phone? I’m curious if it hits 115dbs on cold start.

Thanks for posting!

#51

I’ll give it a try tomorrow. Just downloaded Decibel X, was pretty highly rated. I need to start it and finish filling the DSG with fluid so I’ll Cold test it then and report back tomorrow.

#52

It sounds like the seals are all new in the engine. Great sound nothing raspy, congratulations! :+1:

I have been using decibel x a few times, but only as loud as about 95 decibel for measuring noise from resonating leaf blowers across the street :smiley:

#53

Much appreciated!

Would love to see a cold start, imagine it’s going to be quite loud.

#54

So on a Cold start from the drivers seat with the door open it hits 100~105 decibels for almost 5 seconds then settles down to about 85 deciblels for another 20 seconds until it kicks off the cold start SAI cycle. Then at idle it settles down to about 80 decibles. I can only get it up to about 2000rpm where it hits about 95 decibles. I can’t increase the RPM anymore as the car is in a safe mode due to the transmission being locked because of the immobilizer that I will need to get the dealer to VIN code. Plan to get an appointment with them next week if they are available.

#55

Thanks for the information and for checking!

I’d be curious what it would show outside the car on cold start.

Did you happen to capture a video of the cold start? My headers arrive today, they were struck in Memphis for 5 days because of the snowstorm.

#56
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#57

Congrats @hahnmgh63 on getting it up and running it sounds beautiful you have done a lot of hard work there so well done you :+1::blush:

Also very nice @BuyTheWarranty they look ace i bet your getting very excited now as your beast will soon be up and running or should i say up and flying !!! :blush::stuck_out_tongue_winking_eye:

#58

Thank you sir!

Smooth sailing so far, car should be done in 7 days. Just hoping there’s no tuning issues, and that all gets sorted!

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#59

VALVES open footage to come.

Decibel level with valves closed is close to valves OPEN before. About 15% more rasp, but the JHM silencers on the catback REALLY help.

#60

Nice! Mine look the same but where home made

IMG_20200903_220456_189
IMG_20200903_220456_1891600×720 251 KB

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#61

Very cool! Who did that?

#62

Had my friend in my home town do it for me. Got a used set from a guy on Facebook.how much did they cost you

#63

899 I believe. USD.

#64

Not to bad

#65

Cars getting closer. Audi on Monday to unlock the transmission, freshly painted rear bumper and new Ask Carbon rear splitter on Monday. Still stuck without a hood until Seibon produces their next B8.5 batch.

RS5 front end
RS5 front end4032×3024 2.57 MB