Thoughts on the Photo.... - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

ShaneLindley · 04-23-2016, 12:38 PM

I've had several aftermarket exhausts on several different cars. I've not seen this before.

Any thoughts on why my right side tip (Manzo exhaust) is getting this carbon build-up and the left side is spotless? Left side is straight through to the mid-pipe. Right side is slipped on with a clamp. No other mods except for a K&N drop-in filter.

Hope the picture shows up!

[IMG]

[/IMG]

NyC Zn6 · 04-23-2016, 01:05 PM

Fitment looks like shit

Ultramaroon · 04-23-2016, 01:12 PM

Almost a straight shot to the right while the left has a tight bend. Free-flowing mufflers. I doubt there's much of anything going out the left side.

weederr33 · 04-23-2016, 01:15 PM

Looks kinda of like a reflection. Otherwise, it could be from running rich.

ShaneLindley · 04-23-2016, 01:24 PM

Quote:

Originally Posted by NyC Zn6

Fitment looks like shit

Hey...Thanks for the helpful input, but I'm just asking about the build-up on the right side. I'm fresh out of shits to give about your opinion on the fitment.

ShaneLindley · 04-23-2016, 01:30 PM

Quote:

Originally Posted by Ultramaroon

Almost a straight shot to the right while the left has a tight bend. Free-flowing mufflers. I doubt there's much of anything going out the left side.

I noticed that too. Guess I paid $300 for materials and labor and $10 for the Engineering! Imagine that.

ShaneLindley · 04-23-2016, 01:37 PM

Quote:

Originally Posted by weederr33

Looks kinda of like a reflection. Otherwise, it could be from running rich.

No refection. Physical build-up. Wouldn't think it would be running rich. 6k on the odometer. All stock programming and hardware. K&N gets cleaned about every month.

B-R-Z · 04-23-2016, 02:16 PM

My guess is the exhaust is taking the path of least resistance which is the right pipe\muffler. I doubt you have any issues beyond that. Both of my mufflers have equal build-up. In your case, one muffler is doing the work of one and a half or two so it looks like something is wrong.

I would have an exhaust shop re-build the split joint and hopefully you can fix the horrible fitment/alignment issue in the process.

continuecrushing · 04-23-2016, 02:53 PM

inside of exhaust is dirty. Condensation can build up inside exhaust. When you run the car, the water gets pushed out the tail pipes, drips off the edge, and gets the tip dirty. (yeah it does).

finch1750 · 04-23-2016, 03:18 PM

Like others said the right said is the path of least resistance for exhaust flow so the right side gets more through it and will be more dirty. Look ag other dual set-ups and one side is always dirtier

humfrz · 04-23-2016, 03:20 PM

Quote:

Originally Posted by ShaneLindley

Hey...Thanks for the helpful input, but I'm just asking about the build-up on the right side. I'm fresh out of shits to give about your opinion on the fitment.

DANG! ...... @ShaneLindley ....... it has been my observation on this forum, that 80% of the posters will give a smart assed remark 10% of the time. If you react in a smart assed way to those posts 100% of the time, you will most likely get 0% help ........ your call .......

humfrz

Ultramaroon · 04-23-2016, 03:59 PM

Quote:

Originally Posted by humfrz

DANG! ...... @ShaneLindley ....... it has been my observation on this forum, that 80% of the posters will give a smart assed remark 10% of the time. If you react in a smart assed way to those posts 100% of the time, you will most likely get 0% help ........ your call .......

humfrz

I'm with you humfrz but I also am happy Shane has no fucks to give about it

#notmadjustNYC

wbradley · 04-23-2016, 08:27 PM

These cars run rich so carbon buildup is guaranteed.

Manzo is not a brand known for their engineering so symetrical exhaust flow was not guaranteed. Apparently neither is fitment.

I have an oil cooler from CX Racing that has multiple quality issues.

Live and learn.

ShaneLindley · 04-24-2016, 07:20 AM

Thanks guys for the input. The flow path makes sense and I didn't know the build-up was a common occurrence. I was just wondering if anybody else had experienced this.

I knew a discounted exhaust was not going to be a "Quality" item. I'm an OEM Quality Engineer in the Automotive industry. The car even started out questionable with the dealer applying the (free) Rally stripes, so I'm not too concerned with the asthetics. I simply received and installed what Manzo sent me.

This is more of a track car than a daily driver. The bad-fitment exhaust provides me more immediate feedback on engine position. That serves the purpose of why I bought it.

So, as I appreciate the input on how the tips look coming out the back, I could not care less. I am well aware, and, like I said.... I'm fresh out.

But I do honestly thank you guys who helped me understand this situation a little bit more. Probably saved me a trip to the dealer's service dept.

Thanks again guys.
Shane

04-23-2016, 12:38 PM	#1
ShaneLindley Member Join Date: Aug 2015 Drives: 2015 Blue Pearl Location: Florida Posts: 24 Thanks: 0 Thanked 7 Times in 4 Posts Mentioned: 1 Post(s)	Thoughts on the Photo.... I've had several aftermarket exhausts on several different cars. I've not seen this before. Any thoughts on why my right side tip (Manzo exhaust) is getting this carbon build-up and the left side is spotless? Left side is straight through to the mid-pipe. Right side is slipped on with a clamp. No other mods except for a K&N drop-in filter. Hope the picture shows up! [IMG][/IMG]

04-23-2016, 01:12 PM	#3
Ultramaroon not playing cards Join Date: Sep 2014 Drives: a 13 e8h frs Location: vantucky, wa Posts: 32,394 Thanks: 53,054 Thanked 37,230 Times in 19,309 Posts Mentioned: 1118 Post(s)	Almost a straight shot to the right while the left has a tight bend. Free-flowing mufflers. I doubt there's much of anything going out the left side. __________________ service manuals

04-23-2016, 01:15 PM	#4
weederr33 Airborne at your service Join Date: Sep 2014 Drives: '17 BRZ Series.Yellow Location: El Paso, Texas Posts: 6,422 Thanks: 4,582 Thanked 5,716 Times in 2,995 Posts Mentioned: 33 Post(s)	Looks kinda of like a reflection. Otherwise, it could be from running rich. __________________ Series.Yellowbird - http://www.ft86club.com/forums/showthread.php?t=122135 MS, CSCS, TSAC-F, CPT

04-23-2016, 03:18 PM	#10
finch1750 Undisputed El Presidente Join Date: Jun 2012 Drives: Zenki 37J ZN6 Location: Stockton, CA Posts: 11,597 Thanks: 9,405 Thanked 9,414 Times in 5,272 Posts Mentioned: 374 Post(s)	Like others said the right said is the path of least resistance for exhaust flow so the right side gets more through it and will be more dirty. Look ag other dual set-ups and one side is always dirtier __________________ "Just like how a strut bar somehow enables you to corner 20MPH faster around a cloverleaf on-ramp, when the reality is, you can do it already but you just don't have to balls to do it." - CSG David

04-23-2016, 08:27 PM	#13
wbradley Sarcastic SOB Join Date: May 2012 Drives: '13 FR-S M6, '23 Volvo V60 CC Location: Toronto Ontario Posts: 4,647 Thanks: 1,364 Thanked 2,863 Times in 1,645 Posts Mentioned: 32 Post(s)	These cars run rich so carbon buildup is guaranteed. Manzo is not a brand known for their engineering so symetrical exhaust flow was not guaranteed. Apparently neither is fitment. I have an oil cooler from CX Racing that has multiple quality issues. Live and learn. __________________ 5:AD kit, HKS V1+ S/C, ECUtek dyno'd, Ohlins MP20, Magnaflow cb, Revworks UEL, Topspeed overpipe, Pinnacle Ceramic tint, VG shark fin, HID's, yellow DRL's, full LEDs, red floor lights, Homelink mirror, trunk lid liner, Perrin LWCP, Valenti smoked, Flossy Grip Tape Shorty, GT86 plaque, lighted vanity mirror, Michelin PSS, Project mU +800, DOT4 fluid, 720 Form GTF1 17x8&9, stitched leather bits, EZ valve.

04-23-2016, 01:05 PM	#2
NyC Zn6 Senior Member Join Date: Apr 2013 Drives: 10 Series #974 6m/t Location: NYC Posts: 1,956 Thanks: 1,358 Thanked 1,141 Times in 669 Posts Mentioned: 6 Post(s)	Fitment looks like shit

04-23-2016, 02:16 PM	#8
B-R-Z I love peanut butter Join Date: Jun 2013 Drives: 2013 SWP BRZ Limited Location: NJ Posts: 1,598 Thanks: 428 Thanked 584 Times in 349 Posts Mentioned: 14 Post(s)	My guess is the exhaust is taking the path of least resistance which is the right pipe\muffler. I doubt you have any issues beyond that. Both of my mufflers have equal build-up. In your case, one muffler is doing the work of one and a half or two so it looks like something is wrong. I would have an exhaust shop re-build the split joint and hopefully you can fix the horrible fitment/alignment issue in the process.

04-23-2016, 02:53 PM	#9
continuecrushing Join Date: Mar 2013 Drives: 2013 Firestorm FRS Location: Lake Elsinore, CA Posts: 2,707 Thanks: 1,231 Thanked 2,144 Times in 1,003 Posts Mentioned: 73 Post(s)	inside of exhaust is dirty. Condensation can build up inside exhaust. When you run the car, the water gets pushed out the tail pipes, drips off the edge, and gets the tip dirty. (yeah it does).

04-24-2016, 07:20 AM	#14
ShaneLindley Member Join Date: Aug 2015 Drives: 2015 Blue Pearl Location: Florida Posts: 24 Thanks: 0 Thanked 7 Times in 4 Posts Mentioned: 1 Post(s)	Thanks guys for the input. The flow path makes sense and I didn't know the build-up was a common occurrence. I was just wondering if anybody else had experienced this. I knew a discounted exhaust was not going to be a "Quality" item. I'm an OEM Quality Engineer in the Automotive industry. The car even started out questionable with the dealer applying the (free) Rally stripes, so I'm not too concerned with the asthetics. I simply received and installed what Manzo sent me. This is more of a track car than a daily driver. The bad-fitment exhaust provides me more immediate feedback on engine position. That serves the purpose of why I bought it. So, as I appreciate the input on how the tips look coming out the back, I could not care less. I am well aware, and, like I said.... I'm fresh out. But I do honestly thank you guys who helped me understand this situation a little bit more. Probably saved me a trip to the dealer's service dept. Thanks again guys. Shane

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