These highly anticipated headers for the 2.5 liter Nissan Altima
Coupe and Sedan are ready for release after months of testing and
development. The goal for these headers was simple. Easy, bolt-on
installation, good horsepower gains, and no check engine lights.
The STILLEN engineers were able to meet these goals and then
These headers are a very easy installation only requiring a simple
modification to the B-pipes and extending the O2 sensor wires.
Testing on a QR25 engine proved gains in excess of 10 wheel
horsepower. A secondary slip joint is included with the kit which
installs in the rear section of the factory secondary pipes and
prevents any SES lights. Additional benefits are a nicely improved
exhaust tone and improved looks underneath the hood.
FOR OFF ROAD USE ONLY