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By deejone
#247186
Looking to actually buy a B15 to replace my totaled 1994 Mercury Tracer. Just a couple questions.

1)Is the 2.5 as bad as they say? I've seen a lot of Sentras online on their 2nd 2.5 engines.

2) Are the 2004+ Fosgate head units plug and play with the older 2002-2003 cars? Thanks.
By yogib777
#247188
welcome
the qr25de has two weak spots the initial catalytic converter and a series of screws in the intake manifold valves
locktite those, and remove the precat and they can go hundreds of thousands of miles
see the stickies on precats and butterfly screws

the ser's and spec v's are very fun to run
imo
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