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If youre trying to avoid the smell, or trying to avoid polluting the air more than neccesary, go with HFC bro.
With 200 cell cats you will hardly notice the difference between open pipes. And makes a big difference on the smell.
We all breathe the same air brother!
Source: compared my headers hpipe car with HFC side-by-side with headers car without cats. No noticeable difference in sound, but noticeably less smelly.
PS: go with H pipe over xpipe. No matter what BLKROKT tells you, x pipe is terrible exhaust note for our cars
If youre trying to avoid the smell, or trying to avoid polluting the air more than neccesary, go with HFC bro.
With 200 cell cats you will hardly notice the difference between open pipes. And makes a big difference on the smell.
We all breathe the same air brother!
Source: compared my headers hpipe car with HFC side-by-side with headers car without cats. No noticeable difference in sound, but noticeably less smelly.
PS: go with H pipe over xpipe. No matter what BLKROKT tells you, x pipe is terrible exhaust note for our cars
I would like to hear your car. Do you have a video. I’m headers cat less and x pipe. The stock resonator is an h pipe. Curious on your sound difference.
I would like to hear your car. Do you have a video. I’m headers cat less and x pipe. The stock resonator is an h pipe. Curious on your sound difference.
'04 E55 (Gone but not forgotten), '13 C63 P31 (RIP), another '13 C63 PP
Any reason to get HFCs if you live in an area that doesn't do emissions? Wouldn't it make the car quieter and cost you a couple HP/TQ vs straight pipes?
Any reason to get HFCs if you live in an area that doesn't do emissions? Wouldn't it make the car quieter and cost you a couple HP/TQ vs straight pipes?
Smell and pollution. Cmon man let’s try to do what we can.... to not **** up the air TOO much
I put some stainless works HFC before my xpipe on the mbh headers. Car still sounds insanely loud and actually better than without them. And my clothes don’t reek like fumes. Haven’t noticed a difference in power except I feel I gained some low end torque which I lost being straight through.
'04 E55 (Gone but not forgotten), '13 C63 P31 (RIP), another '13 C63 PP
Originally Posted by NotABaller
Smell and pollution. Cmon man let’s try to do what we can.... to not **** up the air TOO much
I dont think my comparatively hyper-effecient M156, even with straight pipes, matters too much when you have most of Asia and all of Africa polluting enough for everyone.
I dont think my comparatively hyper-effecient M156, even with straight pipes, matters too much when you have most of Asia and all of Africa polluting enough for everyone.
I agree. One of those massive cargo ships = 10000 of our cars, and maybe add a zero or two.
What is the difference between high flow cats from arh vs catless
long tube headers xpipe and custom 3 inch rear from arh
trying to avoid the smell
I would have to agree with the masses here. Arh with 200 cel cats and xpipe is perfect. Let me know if you want to hear them in person. I'm local in nyc.
c63 coupe p31weistec stg3 SOLD,2013 C63 BLACK SERIES.
Originally Posted by I am Jeff
I would have to agree with the masses here. Arh with 200 cel cats and xpipe is perfect. Let me know if you want to hear them in person. I'm local in nyc.
I’m mainly concerned with the smell,i won’t have a stock rear exhaust so sound won’t be the same but thank you for the offer.
05-15-2019, 11:44 AM
