"Uhmm, it was very easy to install, but to be honest I didn't notice difference in performance or fuel efficiency. And people made reviews about how it makes a cool sound but no sound on mine. I guess it works for some cars and not as much for others. It's all good though I'm still happy with my purchase. "
Lia M. - 2009 Mazda 3 (Mississauga, ON)
"It's an exact fit for you vehicle. The extra MPG you might see about 1-2. Nice-looking, complete instructions with pictures and stickers. Also includes two gaskets for old worn ones."
David H. - 1998 Jeep Grand Cherokee (Cleves, OH)
"Easy to install, extender brackets were the right size, and good quality construction."
Matthew O. - 2004 Chevy Trailblazer (Philadelphia, PA)
"Really works! +16 lbs-ft. 2 mpg improvement (4 is claimed). What a surprise! The best mod I have ever spent money on Ever! My truck has 265/75/16 tires. It is severely over geared, which caused sluggish acceleration and poor gas mileage. The transmission would drop a gear at the wiff of a hill as it was struggling with the taller tires. It has a K&N filter and a Gibson catback exhaust to compensate, and it does at about 2500 to 4000 rpm the thing rips. This piece added the low end torque I needed at partial to mid throttle. I used to turn off the O/D in town. Not any more! Went from 14.5 to 16.5 mpg hwy as well. Which is not what they claimed but I Am Not Complaining. Torque gains are probably spot on at +16 lbs-ft it's huge, no joke."
Joseph B. - 2003 Dodge Dakota (Salinas, CA)
"Once I started, I found that all parts were there and the installation went well; it's a little time consuming but well worth it, the most HP for the money."
Stephen A. - 2007 Infiniti G35 (Mobile, AL)