The Sedan Exhaust Thread
#1489
Registered Member
I think I'm going full retard mode, embrace the rasp.
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Bommerang (01-13-2019)
#1490
Registered Member
The x-pipe really helps. I have very minimal rasp, almost none with ART pipes and custom exhaust with a res X after the Y pipe. Without the ART pipes there was absolutely zero rasp but less power.
#1493
Registered Member
iTrader: (5)
Added an aftermarket Y-pipe to the TopSpeed Y back; completely replacing the stock exhaust from the cats back.
https://www.youtube.com/watch?v=zZXaT-kxcKg
https://www.youtube.com/watch?v=zZXaT-kxcKg
test pipes or HFC?
#1496
Registered Member
Has anyone here ran both a Motordyne E370 on their car with both stock cats and aftermarket cats? I'm asking because I'm in California and they just passed a new exhaust law which pretty much results in a $1000 fine and even a state ref if the officer feels likes it. To avoid this, I plan to remove my Z1 HFC and maybe even my E370, but I'm trying to figure out if the E370 with stock cats is quiet when just cruising and not under WOT. According to the law, anything above 95 DB is illegal and qualified for being cited.
I never ran my E370 with stock cats so I can't compare. Anyone who can chime in, greatly appreciated.
I never ran my E370 with stock cats so I can't compare. Anyone who can chime in, greatly appreciated.
#1497
Registered Member
iTrader: (5)
Has anyone here ran both a Motordyne E370 on their car with both stock cats and aftermarket cats? I'm asking because I'm in California and they just passed a new exhaust law which pretty much results in a $1000 fine and even a state ref if the officer feels likes it. To avoid this, I plan to remove my Z1 HFC and maybe even my E370, but I'm trying to figure out if the E370 with stock cats is quiet when just cruising and not under WOT. According to the law, anything above 95 DB is illegal and qualified for being cited.
I never ran my E370 with stock cats so I can't compare. Anyone who can chime in, greatly appreciated.
I never ran my E370 with stock cats so I can't compare. Anyone who can chime in, greatly appreciated.
#1498
Registered Member
My main concern is taking off from a stop. The motordyne doesn't seem to drone when cruising too bad (I've passed CHP / cops before on the freeway and they don't pay attention), but when I accelerate or press on the gas is when it changes. If I can get it to be semi quiet from taking off from a stop, I should be fine. I would be pretty bummed if I had to get rid of the MD, but it beats getting a $1000 ticket.
I guess I'll find out when I replace the cats. I'll be selling a pair of Z1 HFC 200 cell soon!
Thanks for the feedback.
#1500
Registered User
Custom H Pipe
Custom H Pipe, Z1 HFC, HKS Hi Power Axle Back.
Cat Back is all 2" pipe.
First start with h pipe last night. Louder than expected. Cold start in a garage.
Later last night revving in a parking lot. Neutral revs 3500-4500
And then this morning's very very cold start.
She's more than a bit raspy but I gotta be honest I'm loving it for now. Resonators will probably go in soon though.
Cat Back is all 2" pipe.
First start with h pipe last night. Louder than expected. Cold start in a garage.
Later last night revving in a parking lot. Neutral revs 3500-4500
And then this morning's very very cold start.
She's more than a bit raspy but I gotta be honest I'm loving it for now. Resonators will probably go in soon though.