Last Updated: 9/17/14
Flowmaster Muffler Heat Shield made by Flowmaster

Reviews Muffler Heat Shield Reviews & Discussions:

"You won't need anything, just find a shop that sells and installs Flowmaster mufflers and they'll have what you need and want. They can even help you with best choice for your application, how loud or quiet you want, tone and so forth."

Posted on 09-07-2014, 06:06 PM

"I've got mine chopped before my rear axle and I don't notice any odd vibrations, nor do I smell any fumes. It does increase cab noise, but that doesn't bother me... that's why I added the flowmaster muffler along with the cut and turned down exhaust."

Posted on 08-29-2014, 01:51 PM

"In the last picture above, you'll notice I have 2 exhaust setups. One has no cats and flowmaster mufflers. The other is the catalytics with stock cobra mufflers. I'm hoping with cats and stock mufflers the car ends up super quiet. But if its low on power I"

Posted on 08-25-2014, 05:26 AM

"you would see any loss in performance ..... Now if you had some sort of high flow intake , fuel chip or retune , and the exhaust you may have something to lose but still not that much....I have a flowmaster muffler on mine and never noticed anything after "

Posted on 08-05-2014, 05:30 PM

"New piping for the exhaust system. doug thorley secondary cat deletes, 2.5" piping to y-pipe then 3" piping dumped before bumper. Going to add a new 3" in/3" out flowmaster muffler though. Noticed a little raspyness when under full throttle getting on the "

Posted on 08-03-2014, 05:18 PM

"the biggest change of all by lowering the torque peak 650 rpms down to 3,150 rpms. The tooter intake manifold spacer lowered it another 250 rpms to 2,900 rpms. But the real surprise was adding the Flowmaster muffler. On the dyno, it dropped the torque peak"

Posted on 07-17-2014, 06:14 PM

"face of the conventional belief that chambered mufflers don't flow as good as straight through mufflers. Even before the tests, I read a lot about the acoustic and flow design principles utilized in Flowmaster mufflers, and these guys are really doing thei"

Posted on 07-14-2014, 12:16 PM

"was one slight difference... Comparative dyno runs: stock Toyota muffler: BLUE Flowmaster Series 50 Delta Flow muffler: RED On the dyno, the stock muffler torque peak was reached at 2,900 rpms. The Flowmaster muffler met and exceeded the torque peak of the"

Posted on 07-13-2014, 07:20 PM

"While one mpg isn't a lot, your gas mileage chart is consistently higher with the Flowmaster muffler, and that's significant because it's outside the margin of error of one fill up. Greg"

Posted on 07-03-2014, 11:31 PM

"Jeez. This thread is REALLY making me want to ditch this stupid ricey Areo Turbine 2525 and go back to a Flowmaster muffler. I've used Flowmasters on 2 of my trucks in the past and ALWAYS loved the way they sounded. Hmmmmmmmm decisions decisions. So you're"

Posted on 07-03-2014, 07:04 PM