Resonated test pipe noise

2013nismo · 01-16-2015, 04:35 PM

Hey guys. I installed my FI resonated test pipes last week. I have their cat back with 18 resonators. We took it for a test drive and sounded fine, but I noticed after I left when I push the car hard it makes this high pitched vibrating sound. It sounds like it is coming from where the test pipes are, but i could be wrong.

Is this sound normal for resonated test pipes? I have to wait till monday to bring it to the shop.

DEpointfive0 · 01-16-2015, 04:39 PM

Vibrating? Or wooshing sound?

DavidZ370 · 01-16-2015, 04:40 PM

This noise you speak of is called RASP, it will happen once you go catless. check for leaks as they make the rasp more louder. if there are no leaks you will have to live with the raspy noise or go HFC instead of Test pipes

2013nismo · 01-16-2015, 04:46 PM

Not the hiss noise. I'm aware of that.

Thanks david. I was afraid thats what it was. I thought the resonators gets rid of the rasp.

TerribleONE · 01-16-2015, 04:47 PM

Check all the hardware

TerribleONE · 01-16-2015, 04:48 PM

RTPS and 18" res CBE should not be THAT raspy.. I ran non res TPs and a non res CBE on my G37 and it wasn't all that raspy IMO

2013nismo · 01-16-2015, 05:13 PM

Ok..So I should expect some rasp. Hopefully theres a leak or ill have a set of test pipes for sale soon. Its annoying.

DavidZ370 · 01-16-2015, 05:30 PM

Quote:

Originally Posted by 2013nismo

Ok..So I should expect some rasp. Hopefully theres a leak or ill have a set of test pipes for sale soon. Its annoying.

Yep as I said check the hardware, makes a huge difference as I also had a leak, after that if its a no go switch em to HFC and rasp shouldn't bee too much

4TthAnnyZ · 01-17-2015, 10:34 AM

I went non resonated, because loud is good.

dislimn · 01-17-2015, 03:49 PM

I'm non res FI with FI RHFC and it vibrates some **** around. Had everything triple checked over the course of about 1200 miles. It's just good vibes man

01-16-2015, 04:35 PM	#1 (permalink)
2013nismo Base Member Join Date: Dec 2013 Location: St Pete, Florida Posts: 21 Drives: 2013 370z Nismo Rep Power: 12	Resonated test pipe noise Hey guys. I installed my FI resonated test pipes last week. I have their cat back with 18 resonators. We took it for a test drive and sounded fine, but I noticed after I left when I push the car hard it makes this high pitched vibrating sound. It sounds like it is coming from where the test pipes are, but i could be wrong. Is this sound normal for resonated test pipes? I have to wait till monday to bring it to the shop. __________________ FI TDX catback with 18 resonators, FI resonated test pipes, Stillen Gen intakes, z1 plenum, Odyssey PC-680 Battery, UpRev 334/267

01-16-2015, 04:39 PM	#2 (permalink)
DEpointfive0 Premium Member Bitches Join Date: Jan 2012 Location: SoCal Posts: 14,824 Drives: a lot Rep Power: 17151	Vibrating? Or wooshing sound? __________________ Do YOU want to know what/where I got my username from? ( Click to show/hide ) NSFW due to language:

01-16-2015, 04:46 PM	#4 (permalink)
2013nismo Base Member Join Date: Dec 2013 Location: St Pete, Florida Posts: 21 Drives: 2013 370z Nismo Rep Power: 12	Not the hiss noise. I'm aware of that. Thanks david. I was afraid thats what it was. I thought the resonators gets rid of the rasp. __________________ FI TDX catback with 18 resonators, FI resonated test pipes, Stillen Gen intakes, z1 plenum, Odyssey PC-680 Battery, UpRev 334/267

01-16-2015, 04:47 PM	#5 (permalink)
TerribleONE A True Z Fanatic Join Date: Jan 2009 Location: Socal Posts: 10,203 Drives: WOT Rep Power: 5850	Check all the hardware __________________ 638WHP 541WTQ @ 13.5PSI Build thread

01-16-2015, 04:48 PM	#6 (permalink)
TerribleONE A True Z Fanatic Join Date: Jan 2009 Location: Socal Posts: 10,203 Drives: WOT Rep Power: 5850	RTPS and 18" res CBE should not be THAT raspy.. I ran non res TPs and a non res CBE on my G37 and it wasn't all that raspy IMO __________________ 638WHP 541WTQ @ 13.5PSI Build thread

01-16-2015, 04:40 PM	#3 (permalink)
DavidZ370 A True Z Fanatic Join Date: Oct 2013 Location: [= Posts: 1,065 Drives: 17' CWP STI Rep Power: 23	This noise you speak of is called RASP, it will happen once you go catless. check for leaks as they make the rasp more louder. if there are no leaks you will have to live with the raspy noise or go HFC instead of Test pipes

01-16-2015, 05:13 PM	#7 (permalink)
2013nismo Base Member Join Date: Dec 2013 Location: St Pete, Florida Posts: 21 Drives: 2013 370z Nismo Rep Power: 12	Ok..So I should expect some rasp. Hopefully theres a leak or ill have a set of test pipes for sale soon. Its annoying. __________________ FI TDX catback with 18 resonators, FI resonated test pipes, Stillen Gen intakes, z1 plenum, Odyssey PC-680 Battery, UpRev 334/267

01-17-2015, 10:34 AM	#9 (permalink)
4TthAnnyZ Base Member Join Date: Jul 2014 Location: Saint Cloud, MN Posts: 171 Drives: 2010 40th Rep Power: 11	I went non resonated, because loud is good. xfrgtr likes this.

01-17-2015, 03:49 PM	#10 (permalink)
dislimn Base Member Join Date: Apr 2014 Location: AR Posts: 101 Drives: 14 Z Sport 6 speed Rep Power: 20	I'm non res FI with FI RHFC and it vibrates some **** around. Had everything triple checked over the course of about 1200 miles. It's just good vibes man __________________ tell the survivors help is on the way

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