Looking for some information on what can be done to the exhaust system in SM or SM2. I would like to trim some weight and was woindering if it was ok to use a thinner guage pipe and or to remove the muffler all together? This weekend I saw a car in sts remove the muffler and was not sure if that was an option? This is not a daily driver so having a removable muffler/back section would be an option.

 

I dont think you even technically need an exhuast in SM lol. You can do whatever you want to the exhuast system.

In STS, all cat-backs are allowed, and "emissions legal" headers.

 

I am thinking the same thing, I would like to use a smaller guage pipe and have a removable back section, that should shave at least 20-30lbs.

 

Remember that many lots have noise restrictions, you don't want to be responsible for getting your club kicked out of their lot!

 

lol...its just a little crx, and I still will be running a cat and resonator, Plus im sure we do not have a noise limit at our new venue

 

Right now I use a 22 in stainless resonator and turn down for maganaflow but with my new pimpy 2.5in collect headerz! I'm going to try these out from coast fab

http://www.coastfab.com/ultralights.html

 

The thinner you go the more expensive it gets especially with bends and repair work. If you must go thin and for a decent cost `18g or .049 is they way to go we do have some 20g .035 in stock gotta look tomorrow if you have any questions or just need some direction gimme a call at the office i can give you all the weights per foot of the material