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GMC Yukon XL Flowmaster Exhaust, Mufflers & Tips

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Latest Customer Reviews

Flowmaster Exhaust Systems Reviews


2004 GMC Yukon XL SLT

Reviewed By Andrew Z (Florham Park, NJ) Reviewed for a 2004 GMC Yukon XL —12/21/2013 10:46 AM

I received the order fast and with out any issues. The installation took me about an hour to complete. The exhaust has a nice smooth tone to it. You can ease away without waking the neighbors or wake up the entire neighborhood. Also, there isn't a terrible groan on the highway. Great product and would definitely recommend.

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Flowmaster Super 40 Series Mufflers Reviews


Super 40

Reviewed By Andres S (Jackson Heights, NY) Reviewed for a 2003 GMC Yukon XL —10/7/2013 8:28 PM

Great sound!

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Flowmaster 70 Series Big Block II Mufflers Reviews


The Yukon XL hums

Reviewed By Joe S (Boulder, CO) Reviewed for a 2001 GMC Yukon XL —2/3/2010 1:47 PM

Wanted to spruce of the old rig, 2001 GMC Yukon Denali XL, so asked a lot of car guys for advise. The 70 Series seemed to be the choice. The XL is the family car and not a muscle car. Autoeverything price can't be beat. Meineke did an install for $50 as it was essentially a swap. They needed to flute the pipes a bit as stock is 2 5/8 and 70 Series are 2 1/4. Dual in, dual out into a Y with a single exhaust. Experts appear split on benefits of dual exhaust, bigger sound, maybe little power boost. Dual exhaust pipes would have cost another $300 or so. Sounds great and heads turn, but inside the rumble is pleasant. A bigger sound might be great at first, but conversation in the car would suffer. Kept the factory pipes, single outlet. I love starting up the Yukon and I feel the extra power for sure. I can really feel the power on climbs. Also put in an oversized K&N airfilter.

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