Just a simple question guys:

If I were to install say Crawford High Flow Cats on a stock exhaust system, how would the sound be? I am in love with the stock hum of the G35 coupe exhaust and would not want to lose it. Performance is great but since the gains are minimal anyways, I would like to retain the stock exhaust note if at all possible.

Responses by those who have just the high flow cats would be appreciated

 

slightly louder, deeper sounding.

similar to putting on 10-15% muscle girth (doesnt make you look like your on steroids but gives you a nice enhanced defined look)

gl

ppp

 

im' also interested in high flow cats, if i were to install the cats on a g35 with nothign but a plenum spacer, how much a performance difference would i notice?

thanks

 

Ya know - asking a question like that is like asking:

"If I take my shirt off, how much colder will I be?"

Not trying to be wise, but yes, those changes will add power. You're improving the intake and the exhaust, (breathing) smart things to do. Will you feel it? Probably. How much maybe 10 to 12 HP. I would also do the "Z" tube.

Lou

 

yep, those mods will add power and torque, you should feel a small increase......will your car suddenly snap your head back after adding these mods? no......but if you have a 2005.....there are a few threads that show the spacer does not add any noticiable gains..........