Achieving 300+ H.P. on 4v

[cobra2798]

I have a 2001 cobra and i am looking to get over 320 h.p. without cracking open the engine and with out a power adder such as a blower or nitrous. Funds are limited because i just bought a new house. Can some one suggest some bolt ons that would help me achieve this. My car dynoed at 284rwhp stock so getting to my current 316 rwhp wasnt hard, but i could use some help from here!

 

[gibson89LX]

Longtubes and X-pipe should just bump you over.

 

[DBMSTNG]

adding an x pipe should get you over 320rwhp. not too shabby IMO.

 

[Darkhorse845]

This will probaly be best anwsered in the
4V section.

 

[stangGT97]

yeah i agree, slap an X pipe on there and you'll be over 320rwhp. Oh and btw, 4V =

 

[cobra2798]

Thanks guys, that is what i had in mind an xpipe and long tubes, but before i bring this over to the svt section does anyone know if the twin tb upgrade is worth doing and if so what kind of gains can i expect to see?

 

[cold96snake]

You already have a twin TB, me thinks. A mac prochamber should put you over 320rwhp.

EDIT: DR's and steep gear's should put you into the mid-12's.