Re: PSE "loudness" modification - solution
Quote:
RC said:Quote:
Porker said:
Is it possible to install aftermarket manifolds and/or cats, after you've installed PSE (which are just mufflers i thought?) This way you have the performance advantage + the great PSE sound...
Just a question...
I don't know for sure but theoretically, it should be possible without major problems.
I'd try different manifolds with high flow cats for a start.
No DME mod. This should add around 10 HP, maybe slightly more in the upper revv range. If you don't like it, add a DME mod. But don't expect more than 20-25 HP if you want to stay on the "safe" side with engine reliability, etc.
If you compare the 381 HP powerkit changes to the standard 355 HP engine, you'll realize pretty fast that a exhaust manifold/high flow cats/DME mod may add the same power to the car but it definetely will cause problems sooner or later.
Rule number one regarding tuning: stay away from normally aspirated engines.
Rule number two regarding tuning: if you really want to do it, change the internal hardware (camshafts, rods, etc.) too.
A "simple" DME mod for a 25 HP gain incl. exhaust/cats mods only kills the engine sooner or later.
It is a different story with turbo charged engines.
Thanks RC!
Do you know what changes they make when you fit the powerkit?