Would like after market parts
 

I am pretty much fresh stage 2 clutch and some small parts that don't help performance would like parts so I can have a nice set up to tune would be happy with used parts at fair prices and quality plz send messages if interested in making money and a first tuners dream come true.

3 inch catted downpipe wanted as well as exhaust. Willing to pay immediately for par
 

Willing to pay immediately for performance parts so I can upgrade my stock 2008 Cobalt SS

This site will set you back as far as you want to go.

https://www.zzperformance.com/ecotec/exhaust

Be careful buying used parts as they can sometimes turn your dream into a nightmare and you end up buying a new part to replace it down the road anyway. That is if you plan on keeping the car for a while. I think you'll be fine with things you are immediately looking for like downpipe and exhaust or other parts that don't really wear out (exhaust can rust out but you get my point). Be wary of used mechanical components.

I have learned the hard way too many times on used performance parts.