Review Details

QR25DE (02-06) Hi-Power Spyder Header

Product Review (submitted on June 10, 2017):

As Jeremy Clarkson once said... POOOOOWWWWEEEERR!

First off get rid of your stock pre cat now! QR25's in the B15 sentras are ticking time bombs so dont take the risk! I have only ever run 1 set of aftermarket headers, that being megan, and these blow those out of the water. Not only that but coming from a gutted precat to these is a literal night and day difference! Ive never felt my QR rev and pull like it does with these headers!

Even running these with an all stock exhaust, and an auto transmission these make a huge difference. The biggest gains I have noticed are on the high end making acceleration at 70+ mph a breeze. My transmission no longer wants to shift down when applying moderate throttle to pass someone. Overall the torque curve feels much more linear. Shifting through gears the car feels like it picks up where the previous gear left off without dropping as much torque thus, according to the butt dyno, more power is put on the pavement. Coupled with a CAI these headers produce an nice deep rumble, much nicer than the drone everyone is used to with factory equipment.

Some might say there are better headers to be had, and while that may be true as far as raw HP or Torque numbers go, these headers have far surpassed my expectations for a daily driver. 2J thank you for providing equipment that makes diving the B15 a joy,