Not sure which 2001 GMC Yukon XL Performance Mufflers are right for you? We have over 976 customer reviews, with an average rating of 4.5, to help you find exactly what you're looking for. Here's what some of our customers have said:
"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." —Joe S from Boulder, CO bought a Flowmaster 70 Series Big Block II Mufflers for a 2001 GMC Yukon XL.