Reviewed By Frank D (SAN GERMAN, PR) Reviewed for a 2003 Nissan Frontier —2/14/2014 6:10 PM
Seems to be good quality welding and materials used to manufactured. Do not expect a deeper sound than the stock ones.
Reviewed By Taner P (Rockwall, TX) Reviewed for a 2008 Nissan Titan —10/30/2015 10:46 AM
Well first off, the manifolds look nothing like the picture. You can see all the heat/burn marks from the welds and overall look was horrible. There is no real difference in sound (as expected installing aftermarket headers), but I can tell a little difference in power - Maybe 8-10 horsepower. If you're looking for performance and sound, this is not the product for you. If you simply just want to replace the stock cracked manifolds cheaper than from factory, then this is the product for you.