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Flowmaster 70 Series Big Block II Mufflers

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  • $144.99 - $149.48
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    Features

    Description

    Maximum flow volume, maximum efficiency, maximum power. The Flowmaster 70 Series Big Block II Muffler does it all for your big, bad truck, SUV, RV or other towing vehicle. With its massive chamber, the Flowmaster 70 Series handles the output of huge working engines at their highest load, boosting torque right when you need it.

    The Flowmaster 70 Series Muffler also uses exclusive Delta Flow technology for the least possible interior resonance, thanks to precision deflectors in the chamber. These exact parts also aide exhaust gas scavenging for scraping together the most power and torque possible.

    The 70 Series Big Block II Muffler boasts the quality construction you'd expect from Flowmaster. Each Flowmaster Muffler is built with 16-gauge aluminized steel for corrosion resistance and fully mig-welded for maximum durability. Best yet, your Flowmaster 70 Series Big Block II Muffler boasts a 3-year warranty.

    Notes

    Flowmaster 70 Series Big Block II Mufflers Customer Reviews

    Average Rating

    35 Customer Reviews

    Truck guy

    Reviewed by Floyd T (STONE RIDGE, NY) — Oct 11, 2014 5:25 AM

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    Great sound just what I was looking for great price . A+

    flowmaster 70

    Reviewed by AJ S (COLUMBIA, MO) Reviewed for a 2012 GMC Sierra — Sep 09, 2014 10:49 AM

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    product exactly as expected

    Sounds great

    Reviewed by Dennis M (TELFORD, PA) Reviewed for a 2006 Nissan Titan — Aug 29, 2014 11:23 AM

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    1 of 1 people found the following review helpful.

    Had a Banks Monster Exhaust on the truck. Excellent exhaust system but too loud when pulling travel trailer. Was able to use existing Banks pipes with this Flowmaster muffler. Toned down quite a bit but still sounds great. Gas mileage improved from 13 mpg average to 14.5 mpg average. Probably due to increase in back pressure. Hammering sound with Banks muffler is gone. Runs much smoother.

    Not an easy install for the DIYer

    Reviewed by Aaron H (MURPHY, TX) Reviewed for a 2014 Ford F-150 — Aug 23, 2014 5:41 AM

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    Despite what the description and the Auto Anything chat will tell you, there are modifications that need to be done at a shop in order to install this muffler on a 2014 F-150.

    Great Mufflers

    Reviewed by Nicole L (Ramah, CO) Reviewed for a 2002 Chevy Silverado — Aug 16, 2014 8:37 AM

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    2 of 2 people found the following review helpful.

    We had to get these for our big truck cause we just got a 5th wheel and the 50 series were too loud on the truck. We think these are much quieter.