What is the best mod for beefing up the power curve at the top? I'd like to increase the rev limit and would like to see more power production up near 7K. What part is the biggest bottleneck there? Exhaust (Cats, headers, Y-pipe, muffler), plenum, etc? This is for an '05 Enthusiast btw.

Thanks for any info!

 

mainly breathing mods will net you power up top... once TS figures out the '04.5 and '05 ECUs, get big lopey cams, that will help alot as well

 

Free flowing exhaust, but you lose lowend tq.

 

THIS INTAKE MANIFOLD is designed to gain HP at top end.

 

Lower intake manifold from an '05 track.

 

pretty much any of the breathing mods will increase your topend a little. if you really wnat to get the most out of the topend you will need to do everything, i.e. boltons plus cams and tuning.