Muffler delete affects MPG

[FRSBRZGT86FAN]

Originally Posted by jg7

Ha, answered my own question....

<http://www.ft86club.com/forums/showthread.php?t=57904>

I actually did weigh everything out it breaks down as follows

Stock Exhaust

Mid pipe: 11.5 lbs
Rear section: 28.5 lbs

TOTAL: 40 lbs



Dezod Exhaust

Mid section: 9.5 lbs
S-section: 3 lbs
Rear section: 16 lbs

TOTAL: 28.5 lbs



So there's a weight savings of about 11.5 lbs.

If you can contact @JRitt

That way he can update this thread:

http://www.ft86club.com/forums/showthread.php?t=7881

with the exhaust system weight it's good to know

[ShadowReaper]

Originally Posted by jg7

Does anyone know how much the stock exhaust weighs? This would be from the cat back, or just the muffler section.

I'm thinking of changing/deleting the muffler for the weight savings and a slightly more aggressive sound (don't expect much performance change).

Thanks,

If you delete the muffler make sure you add something else, don't just leave it like it is. For example go with the Berk muffler delete.

I saw a dude at a car meet with a red FRS had his bumper off because it melted from deleting the muffler and not adding any more piping.

So he has a muffler delete and bumper delete lol

and the muffler delete by itself doesn't sound aggressive at all, just sounds slightly louder and the engine is most of the noise.

[jg7]

Good advice, don’t want to end up with a blob of plastic on the back (or fumes in the cabin).

I do like the smooth bends in the Dezoid cat back. I wonder if it has much reduction in back pressure and if that causes a mixture change.

[ShadowReaper]

Originally Posted by jg7

Good advice, don’t want to end up with a blob of plastic on the back (or fumes in the cabin).

I do like the smooth bends in the Dezoid cat back. I wonder if it has much reduction in back pressure and if that causes a mixture change.

It doesn't, it's awesome. I'd recommend it to any 86er

[Ultramaroon]

Originally Posted by jg7

Ha, answered my own question....

<http://www.ft86club.com/forums/showthread.php?t=57904>

I actually did weigh everything out it breaks down as follows

Stock Exhaust

Mid pipe: 11.5 lbs
Rear section: 28.5 lbs

TOTAL: 40 lbs



Dezod Exhaust

Mid section: 9.5 lbs
S-section: 3 lbs
Rear section: 16 lbs

TOTAL: 28.5 lbs



So there's a weight savings of about 11.5 lbs.

*searches, answers own question, posts results*

Well done!

...and welcome to The Forum.

[jg7]

Thanks Ultramaroon,

Great folks and lots of good info on these forums.

jg7

[mav1178]

Actually, a muffler delete pipe (of any kind) would contribute to a small decrease in gas mileage at higher speeds.

The factory muffler location acts as an underbody filler. When you remove it, there's a gigantic void where drag can be created.

This is why complete rear diffusers improve gas mileage on our cars, because that is probably the most inefficient part of a car that is already pretty good.

-alex

[Jnamrefiel]

Originally Posted by mav1178

Actually, a muffler delete pipe (of any kind) would contribute to a small decrease in gas mileage at higher speeds.

The factory muffler location acts as an underbody filler. When you remove it, there's a gigantic void where drag can be created.

This is why complete rear diffusers improve gas mileage on our cars, because that is probably the most inefficient part of a car that is already pretty good.

-alex

I want to say invidia sells a bolt on panel to correct that issue.

Sent from my 831C using Tapatalk

[Dr. BRZ]

again, when will people ever learn. buying an axel back is a waste of money, do yourself a favor and buy a catback. buy an axelback and GOODLUCK finding a mid pipe for it.

[Jnamrefiel]

Originally Posted by Dr. BRZ

again, when will people ever learn. buying an axel back is a waste of money, do yourself a favor and buy a catback. buy an axelback and GOODLUCK finding a mid pipe for it.

Theoretically any one should bolt up assuming the mid pipe was designed as a factory replacement. But there's always a possibility of minor fitment issues even then.

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[Dr. BRZ]

Originally Posted by Jnamrefiel

Theoretically any one should bolt up assuming the mid pipe was designed as a factory replacement. But there's always a possibility of minor fitment issues even then.

Sent from my 831C using Tapatalk

do all these people a favor and look for and post aftermarket midpipes. let's see how many you can find.

[Cole]

Originally Posted by Dr. BRZ

again, when will people ever learn. buying an axel back is a waste of money, do yourself a favor and buy a catback. buy an axelback and GOODLUCK finding a mid pipe for it.

Why is the axleback a waste of money? I've had 3 different ones so far and they've all been excellent quality, install has been easy (not needing to mess around with a jack) and providing I ever do go through the OEM mid pipe, plenty of people sell their nearly new OEM ones.

Not many if any gains to be had by going with a catback anyhow

[Jnamrefiel]

Originally Posted by Dr. BRZ

do all these people a favor and look for and post aftermarket midpipes. let's see how many you can find.

http://www.frsparts.org/Works-Exhale...e-BRZ-FRS.html

http://www.modbargains.com/Borla-Mid...-BRZ-60541.htm

https://shop.namelessperformance.com/3-midpipe-brz-frs/

http://www.frsport.com/Exhaust-Mid-P...-_p_74485.html

http://www.phasteksport.com/2013-Sci...ipe-17284-.htm

http://m.enjukuracing.com/item/33333...38392d36323435


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[swarb]

@Dr. BRZ waste of money is relative. 600 bucks for 2-3hp? it is mostly for sound, looks, and weight.
@Jnamrefiel You have the front pipe and midpipe mixed up. He was talking about the midpipe. Please don't bump old posts if you don't have any real information to add.