4-1 Type-R header making my car quieter?
#1
Honda-Tech Member
Thread Starter
Join Date: Apr 2004
Location: Wawa
Posts: 1,849
Likes: 0
Received 0 Likes
on
0 Posts
4-1 Type-R header making my car quieter?
So i know header talk has been discussed millions of times but i have never heard of a 4-1 header reducing the sound of a motor?
I have a 96 hatch with a B18C and a HKS cat-back. Originally i ran the oem exhaust manifold, but someone hacked and welded it straight to a flexpipe and then bolted to the cat-back. The flexpipe broke so i had to replace the header and have a test pipe made.
So i installed a 4-1 megan "type-r style" header, and a test pipe. For some reason the car sounds as if I installed a resonator on it. It was very loud and throaty before with the OEM 4-2-1 exhaust manifold, vtec was easy to hear, but now it is VERY quiet, even straight piped to an HKS muffler!
I don't mind it really, but am wondering if this is normal? I guess maybe i didn't realize that a 4-1 can suppress sound like this? It literally is silent when I am just cruising, and just a tad bit throaty at high rpm's...
Anyway late post, just was very curious
I have a 96 hatch with a B18C and a HKS cat-back. Originally i ran the oem exhaust manifold, but someone hacked and welded it straight to a flexpipe and then bolted to the cat-back. The flexpipe broke so i had to replace the header and have a test pipe made.
So i installed a 4-1 megan "type-r style" header, and a test pipe. For some reason the car sounds as if I installed a resonator on it. It was very loud and throaty before with the OEM 4-2-1 exhaust manifold, vtec was easy to hear, but now it is VERY quiet, even straight piped to an HKS muffler!
I don't mind it really, but am wondering if this is normal? I guess maybe i didn't realize that a 4-1 can suppress sound like this? It literally is silent when I am just cruising, and just a tad bit throaty at high rpm's...
Anyway late post, just was very curious
#3
Honda-Tech Member
Join Date: Oct 2007
Location: Dub Caesar, PA
Posts: 1,644
Likes: 0
Received 0 Likes
on
0 Posts
Re: 4-1 Type-R header making my car quieter?
so you had a hole in your exhaust/flex pipe, replaced it and you wonder why the car is quieter?
I replaced brake pads and started wondering why the car doesnt make noises when i stop afterwards. any ideas?
I replaced brake pads and started wondering why the car doesnt make noises when i stop afterwards. any ideas?
#4
#5
I never narc'd on nobody!
iTrader: (1)
Re: 4-1 Type-R header making my car quieter?
In case you aren't getting the sarcasm, your exhaust isn't quieter because of the 4-1 header, it's quieter because you fixed your exhaust. You had a hole. Holes in the exhaust are loud. You fixed the hole, and now your car is quieter.
#6
Honda-Tech Member
Thread Starter
Join Date: Apr 2004
Location: Wawa
Posts: 1,849
Likes: 0
Received 0 Likes
on
0 Posts
Re: 4-1 Type-R header making my car quieter?
Firstly, the car was loud prior to the hole in the flex pipe, which is what i was comparing to. Despite driving it for all of 20 minutes with the hole, i still can tell a big difference in how quiet the sound is now compared to with the stock exhaust manifold.
Secondly, it doesn't matter if it's normal really. My concern was that i never once heard of a 4-1 header making the exhaust quieter...especially this quiet, with an HKS cat-back, the car sounds stock.
But once again, thanks Honda-Tech... Lol..
Secondly, it doesn't matter if it's normal really. My concern was that i never once heard of a 4-1 header making the exhaust quieter...especially this quiet, with an HKS cat-back, the car sounds stock.
But once again, thanks Honda-Tech... Lol..
#7
Re: 4-1 Type-R header making my car quieter?
My 4->1 civic is louder than my 4->2->1 civic.
and I'm pretty sure the only difference is the muffler.
OP I would put money on dat hole being there longer than you thought, and it took a while for it to become noticeable enough for you to catch on
and I'm pretty sure the only difference is the muffler.
OP I would put money on dat hole being there longer than you thought, and it took a while for it to become noticeable enough for you to catch on
Trending Topics
#8
Honda-Tech Member
iTrader: (3)
Re: 4-1 Type-R header making my car quieter?
Having driven with holes in the exhaust before, you'd be surprised how much noise leaky pot-metal makes.
Flex pipes also don't keep pressure like they should.
I'm not understanding if this is a real concern because your car is actually quieter or you just wanted to start a thread discussing 'omg quiet cars, who'da thunk?!'
Flex pipes also don't keep pressure like they should.
I'm not understanding if this is a real concern because your car is actually quieter or you just wanted to start a thread discussing 'omg quiet cars, who'da thunk?!'
#9
Re: 4-1 Type-R header making my car quieter?
in a way yes it possible the header made a noise diffrence since the exhaust gas flow was smoothed out compared to stock manifold were it scatters more
Thread
Thread Starter
Forum
Replies
Last Post