Does anyone know the sound difference b/t the Vishnu exhaust without the downpipe and with it? Is it significantly louder?

thanks!

 

According to a customer in Portland who installed the cat-back one day and the downpipe the next day, the exhaust level didn't change appreciably. Although the tone with the downpipe installed was slightly different under boost (deeper and more "agressive" sounding).

Cheers,
shiv

 

Does he have the hi-flow cat with that downpipe?

 

Yea he had the hi flow cat with downpipe. I'm actually using his Xede map as we speak =)

Runs AWEASOME

 

Thanks for the info. Have you ran your evo down the 1/4mi strip yet? That's probably the first thing i'm doing to see my horsepower gains.

 

When we added the Vishnu downpipe and high flow cat. to the regular stage 0 Vishnu setup I did not notice increased exhaust noise per se but you do hear a noise that comes in at around 4000 rpm like a roar or resonance of some sort. Guess its related to the turbo. It is a noticable sound - sounds powerful.