High Flow Cats placement with LTH
It could be that not many with aftermarket converters were worried about reading converter temperature, so there is no knowledge base of what happens to the calculated temperature reading, when you change converter type from the normal ceramic to the metal substrate
https://www.amazon.com/s/ref=nb_sb_n...emperature+gun
My next question is: Since these ship with straight mid pipes to the resonator, which I have alraedy deleted... Should I just run straight pipes all the way to the muffler? Is X Pipe mandatory here? Or can I get away with telling the installer to weld an H in the FI 3" midpipes?




Seriously, where are you reading this stuff man.
Seriously, where are you reading this stuff man.

I even did my own fact-check with a magnet on my headers last night
Last edited by NotABaller; Aug 18, 2017 at 11:19 AM.

You have a 6.2 L engine crammed into a fairly tight space. Our cars run hot if pushed hard. Ceramic coating and any other cooling options are beneficial to our cars.
I guess people can convince themselves of anything with the internet.
https://www.jet-hot.com/classic-polish

Seriously, where are you reading this stuff man. :
The Best of Mercedes & AMG




I wonder if they've improved since then. I'll check it out thanks.




This is an excellent article on thermal wraps and coatings.
https://www.centuryperformance.com/e...o-not-use.html
Last edited by BLKROKT; Aug 18, 2017 at 02:41 PM.
Also picked up 200 cell Magnaflow 59959 cats. https://www.summitracing.com/int/par...9959/overview/
Took them out of the package and they look fcking tiny and hollow. There is no way this cat will do anything to tame the beast.
Cant wait to drive around with this crazy setup! Will be running:
- EC tune
- FI Headers
- 200 Cell HFC
- H mid pipe
- Straight pipe resonators
- Charcoal delete
- Have 1 ROW Airbox already on car(???)
- KN filters
Am looking into block off plate/cooling techniques next. What other upgrades should I look to?
Also picked up 200 cell Magnaflow 59959 cats.
Took them out of the package and they look fcking tiny and hollow. There is no way this cat will do anything to tame the beast.
Cant wait to drive around with this crazy setup! Will be running:
- EC tune
- FI Headers
- 200 Cell HFC
- H mid pipe
- Straight pipe resonators
- Charcoal delete
- Have 1 ROW Airbox already on car(???)
- KN filters
Am looking into block off plate/cooling techniques next. What other upgrades should I look to?

Be sure to take some pics and make a vid of the sounds. I'll be ordering headers soon to install over the winter when the cars put away. From what I've seen.... It looks like a B****of an install. I wanna throw on cats as well, so it'd nice to see what it'd sound like with cats. Keep up the good work dude

Be sure to take some pics and make a vid of the sounds. I'll be ordering headers soon to install over the winter when the cars put away. From what I've seen.... It looks like a B****of an install. I wanna throw on cats as well, so it'd nice to see what it'd sound like with cats. Keep up the good work dude
Do you guys think it's worth getting a EC Dyno tune ($300) over a EC v7 shelf tune from Jerry?
lolol
My car went from sounding like a screaming school girl at high rpm back to the Mercedes signature note. You can literally hear the scavenging when everything is put where it's supposed to be. It's almost as if a sound engineer came in and cleaned up all the rasp and white noise then dropped it down a few octaves. Get on the gas and make the car drop. It's dope. I'll include a video. It's definitely dampened in video format just imagine it twice as loud.
https://vimeo.com/231458973
valves closed
https://vimeo.com/231459413
valves opened
I have the v7 tune and like it. I dont have headers or the flex fuel kit just yet. But when I do, I wont settle for anything less then 3-5 hours dyno time to dial everything in
My car went from sounding like a screaming school girl at high rpm back to the Mercedes signature note. You can literally hear the scavenging when everything is put where it's supposed to be. It's almost as if a sound engineer came in and cleaned up all the rasp and white noise then dropped it down a few octaves. Get on the gas and make the car drop. It's dope. I'll include a video. It's definitely dampened in video format just imagine it twice as loud.
https://vimeo.com/231458973
valves closed
https://vimeo.com/231459413
valves opened
You spent the money on the headers already so you might as well get the tune specific to your car.
Buy a ODB2 dongle i use the "foseal" off amazon. Get dash command (iPhone) or (torque android) When you're on the dyno data log the car and send that to jerry to get him more info (we recently did this on my bros 507) along with the dyno sheet with AFR. This will maximize the results on your tune.
I've done multiple remote dyno sessions with Jerry and i found this to be the most effective way to get the best tune.
If you need any help/clarification feel free to reach to me








Dyno tune is that much better than upgrading to V7?


