FI exhaust, burnt bottom bumper with Nismo?

w4kj4k · 01-03-2014, 08:45 AM

I was getting an alignment and noticed the bottom part of my rear bumper above the exhaust are brown, almost burnt. I think the the exhaust tucks under on the nismo more than the regular 370's if I'm not mistaken.

Anyone else have this issue?

EZT · 01-03-2014, 08:46 AM

I occasionally run into this issue, it will take some elbow grease, but it comes out.

Joepro · 01-03-2014, 08:51 AM

You have cats? Looks like oil

w4kj4k · 01-03-2014, 09:02 AM

Joe, actually... Now that you mention it.. I do have the resonated test pipes.
Also I noticed my back bumper is slightly covered with black soot.
Should I be a bit worried?

Rusty · 01-03-2014, 11:35 AM

I have that too. It comes off when I wax the Z.

Riptide67 · 01-03-2014, 11:41 AM

Because:racecAr

1325 · 01-03-2014, 12:44 PM

Quote:

Originally Posted by Riptide67

Because:racecAr

Adds character, too.

MyKindaGuise · 01-03-2014, 12:47 PM

uhhh that just washes off. Its not burnt.

synolimit · 01-03-2014, 01:16 PM

Happens on all white cars. Does not come off with washing no matter how hard you try. A rubbing compound polish takes it right off.

Chuck33079 · 01-03-2014, 01:29 PM

Quote:

Originally Posted by w4kj4k

Joe, actually... Now that you mention it.. I do have the resonated test pipes.
Also I noticed my back bumper is slightly covered with black soot.
Should I be a bit worried?

It's from the test pipes. It's the unburnt crap that the cats would have cleaned up. Go get a clay bar. It'll take care of it.

w4kj4k · 01-03-2014, 07:47 PM

It's crazy because I never really hear anyone say anything about having their bumper covered in black soot from having test pipes. Im sure I'm not the only one..

mag_black · 01-03-2014, 11:34 PM

Actually, I've seen quite a few people point out the discoloration of their bumper from TP's.

edit:
Test pipes vs HFCs and related questions
does TEST PIPES leave STAINS?

I searched google w/
site:the370z.com test pipe bumper

I find it a lot easier to find things on this site when I use google to search it.

Slam128 · 01-03-2014, 11:38 PM

Same issue with my white nismo. More noticeable than other colors b/c it's white. Claybar more often in that area to keep crud from building up.

MyKindaGuise · 01-03-2014, 11:38 PM

Quote:

Originally Posted by synolimit

Happens on all white cars. Does not come off with washing no matter how hard you try. A rubbing compound polish takes it right off.

Guess I must be superman with my microfiber towels.lol

Quote:

Originally Posted by w4kj4k

It's crazy because I never really hear anyone say anything about having their bumper covered in black soot from having test pipes. Im sure I'm not the only one..

I have that exact thing happen...only difference is I stay on top of it and make sure it doesn't build up to that level and it comes off quite easily.

DEpointfive0 · 01-03-2014, 11:41 PM

Quote:

Originally Posted by w4kj4k

Joe, actually... Now that you mention it.. I do have the resonated test pipes.
Also I noticed my back bumper is slightly covered with black soot.
Should I be a bit worried?

Quote:

Originally Posted by Rusty

I have that too. It comes off when I wax the Z.

Quote:

Originally Posted by Riptide67

Because:racecAr

Quote:

Originally Posted by 1325

Adds character, too.

Quote:

Originally Posted by MyKindaGuise

uhhh that just washes off. Its not burnt.

Quote:

Originally Posted by Chuck33079

It's from the test pipes. It's the unburnt crap that the cats would have cleaned up. Go get a clay bar. It'll take care of it.

Quote:

Originally Posted by mag_black

Actually, I've seen quite a few people point out the discoloration of their bumper from TP's.

edit:
Test pipes vs HFCs and related questions
does TEST PIPES leave STAINS?
I searched google w/
site:the370z.com test pipe bumper

I find it a lot easier to find things on this site when I use google to search it.

Quote:

Originally Posted by Slam128

Same issue with my white nismo. More noticeable than other colors b/c it's white. Claybar more often in that area to keep crud from building up.

All acceptable answers.

Quote:

Originally Posted by w4kj4k

It's crazy because I never really hear anyone say anything about having their bumper covered in black soot from having test pipes. Im sure I'm not the only one..

Yeahhhhhh... I have a Monterrey Blue 370Z and the back is hazy, I can keep the car clean for... 30 minutes, maybe an hour if it was raining when I washed the car, then drove around in the rain.
But a car wash takes all that crap off immediately

01-03-2014, 08:46 AM	#2 (permalink)
EZT Track Member Join Date: Mar 2011 Location: Gainesville Posts: 556 Drives: 09 370z Rep Power: 317	I occasionally run into this issue, it will take some elbow grease, but it comes out. TerribleONE likes this.

01-03-2014, 08:51 AM	#3 (permalink)
Joepro A True Z Fanatic Join Date: Aug 2012 Location: Athens ohio Posts: 1,213 Drives: Company car Rep Power: 35	You have cats? Looks like oil __________________ Swift\|Koni\|SPC\| FI CBE\|Z1\|Stillen\|Sbend\|Zspeed\|R/T Tuned\|523 whp\|458 tq\|10.5 psi\|SOLD Joepro's Journal\|Joepro's Boosted Performance Build \|Pittsburgh-Western-Pa-Ohio-Wv-Group

01-03-2014, 11:35 AM	#5 (permalink)
Rusty A True Z Fanatic Join Date: Dec 2011 Location: Fayettenam,Pennsyltucky Age: 70 Posts: 35,575 Drives: 2011 Nismo GM 6M Rep Power: 2684440	I have that too. It comes off when I wax the Z. DEpointfive0 likes this. __________________ 浪人 - 殺し屋 "The Difficult Anytime, The Impossible By Appointment Only" http://www.the370z.com/members-370z-...o-journal.html

01-03-2014, 11:41 AM	#6 (permalink)
Riptide67 A True Z Fanatic Join Date: Jul 2013 Location: Oak Harbor, WA Age: 38 Posts: 1,610 Drives: 09 Nismo #0483 PW Rep Power: 70	Because:racecAr DEpointfive0 and XBarbarian like this. __________________ 2009 Nismo 370Z and 1975 Datsun 280Z 2+2 - PNW_INC - Legacy_Ohana Follow me on Instagam @s3zero_z3four

01-03-2014, 12:47 PM	#8 (permalink)
MyKindaGuise A True Z Fanatic Join Date: Feb 2012 Location: Pennsylvania Posts: 2,029 Drives: 11' 370z Sprt M6 Rep Power: 21	uhhh that just washes off. Its not burnt. __________________ \|445whp398tq\| \|BW S259 Turbo\|3" Downpipe\Exhaust\|ID1000\|AeroMotive\|Tial\|EcuTek\|BC BR\|S0-4\|MaffFab\| MKGs-Single-Turbo

01-03-2014, 09:02 AM	#4 (permalink)
w4kj4k Base Member Join Date: Nov 2010 Location: Oklahoma City Posts: 220 Drives: 2012 PW Nismo Rep Power: 16	Joe, actually... Now that you mention it.. I do have the resonated test pipes. Also I noticed my back bumper is slightly covered with black soot. Should I be a bit worried?

01-03-2014, 01:16 PM	#9 (permalink)
synolimit A True Z Fanatic Join Date: May 2013 Location: Columbus, OH Posts: 5,051 Drives: 2013 Silver 370z Rep Power: 3391	Happens on all white cars. Does not come off with washing no matter how hard you try. A rubbing compound polish takes it right off. __________________ 13 370z-

01-03-2014, 07:47 PM	#11 (permalink)
w4kj4k Base Member Join Date: Nov 2010 Location: Oklahoma City Posts: 220 Drives: 2012 PW Nismo Rep Power: 16	It's crazy because I never really hear anyone say anything about having their bumper covered in black soot from having test pipes. Im sure I'm not the only one..

01-03-2014, 11:34 PM	#12 (permalink)
mag_black A True Z Fanatic Join Date: Mar 2013 Location: Massachusetts Posts: 1,400 Drives: 09 370Z MT6 Rep Power: 668	Actually, I've seen quite a few people point out the discoloration of their bumper from TP's. edit: Test pipes vs HFCs and related questions does TEST PIPES leave STAINS? I searched google w/ site:the370z.com test pipe bumper I find it a lot easier to find things on this site when I use google to search it. __________________ fujimura ≠ abbeyRoadCompany ≠ fastIntentions ≠ motordyne ≠ avantGarde ≠ ecutek ≠ nismo ≠ stillen ≠ stoptech ≠ gtm ≠ spl ≠ carbonfiberelement ≠ stance™ Last edited by mag_black; 01-03-2014 at 11:36 PM.

01-03-2014, 11:38 PM	#13 (permalink)
Slam128 Base Member Join Date: Sep 2013 Location: Los Angeles Posts: 26 Drives: 370z Nismo Rep Power: 13	Same issue with my white nismo. More noticeable than other colors b/c it's white. Claybar more often in that area to keep crud from building up.

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