Is this California legal?

Yes, axle-back exhausts do not affect emissions and can be used in California. This system comes after the air intake system and catalytic converters, which do affect emissions.

What's the noise level for this? Is it lower than 95 decibels, that's what it needs to be for California.

Ain’t this America? Brother you need to move to a free state. It idles under 95 decibels. It can get louder if you want it to be.

Would they fit on a 2016 mustang ecoboost

Probably not. But why would you put an exhaust on an ecoboost? They sound awful when they’re loud. Maybe you should get on CJ Pony parts and look at exhaust systems. They have videos of installation and sound clips of what it will sound like so you don’t end up with something you hate.

does the clamps come with ? and also the muffler tips?

Yes, clamps come for the muffler pipe and the included tips.

Roush 421834 2015 2017 Mustang Gt 5 0 Axle Exhaust

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Description

🔥 Elevate your Mustang’s roar and style with precision-engineered power!

SEAMLESS OEM FIT - Designed to use factory hangers and mounting points for effortless installation and perfect alignment.
SHOW STOPPING STYLE - 4-inch flash-chromed dual wall tips deliver a sleek, aggressive look that turns heads on every street.
UNMATCHED DURABILITY - Crafted from premium 304 stainless steel to resist corrosion and last through every season.
OPTIMIZED PERFORMANCE FLOW - Full mandrel bending ensures smooth exhaust flow, boosting your Mustang’s power and efficiency.
TAILORED FOR MUSTANG GT 5 0 - Specifically engineered for 2015-2017 V8 Mustangs, ensuring peak compatibility and performance.

The Roush 421834 Axle Exhaust is a high-performance upgrade for 2015-2017 Mustang GT 5.0 models, featuring corrosion-resistant 304 stainless steel construction, full mandrel bending for optimal exhaust flow, and eye-catching 4-inch flash-chromed dual wall tips. Designed for a perfect OEM fit using factory hangers, it combines durability, style, and enhanced performance in one sleek package.

Specifications

ASIN	B00SVE8IR4
Best Sellers Rank	#2,747,465 in Automotive ( See Top 100 in Automotive ) #113 in Automotive Replacement Axle-Back Exhaust Systems
Brand	Roush
Customer Reviews	4.3 4.3 out of 5 stars (66)
Date First Available	January 28, 2015
Is Discontinued By Manufacturer	No
Item Weight	29.9 pounds
Item model number	421834
Manufacturer	ROUSH
Manufacturer Part Number	421834
Product Dimensions	26 x 24 x 12 inches

Reviews

T**D

10.10.2015

J**.

10.06.2018

M**N

9.08.2017

J**N

24.05.2019

M**E

4.01.2017

C**L

7.04.2019

B**N

20.12.2018

S**E

13.08.2019

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