Reviewed By Roderick E (SAHUARITA, AZ) Reviewed for a 2011 GMC Yukon XL —2/17/2018 11:45 AM
This product is made of high quality materials. Sounds awesome and the price point is right on. It took about 45 min to install. The hardest part was following the directions. The directions need to be more clarified in writing and better pictures. The Horse Power increase does not really show from the start but once at higher speeds it certainly kicks in.