To save time I'm going to cut right to the point. I own a 2015 300s with the 3.6L. I want to change my exhaust, originally I wanted to do a resonator delete and then put on flowmaster series 10 mufflers but my mechanic is steering me away from doing that. To much cost, time, and when time to trade in the car the exhaust goes with it and all my money spent. So my question after weeks of research is... Is there any exhaust systems from the cat-back that dont have resonators (stright piped) to the mufflers? I cant find anything this says will fit my 300. Not sure what to do anymore starting to feel hopeless about upgrading my exhaust.

 

Can't you just have somebody do custom pipework for you?

Loads of places here in the UK do that and it's very common, normally done from Stainless steel as well.

 

Just in case you missed the mechanics point - the 3.6L cars are not performance oriented. The only thing you achieve in messing with the exhaust is perhaps a cooler sound, certainly no performance improvement.

Moreover, comes time to sell, it the likely buyer will be turned off by a raspy exhaust sound. Think about it.

 

I understood what my mechanic said, I know it's not for performance but I'm not looking for performance. I've already done a lot of work to get my 300S to 400HP, now I just want sound. I dont care about the droning in my car. I have a pretty killer sound system to counteract that. I'm just looking for ideas and a little help on what I should do.

 

What did you ever find out about the exhaust system? I was looking into doing something for mine and was looking for advice. Speaking of advice, what did you do to get it to 400hp?

 

I too would like to know what you did to get to 400hp. I have a 300 S AWD and while it does have the sport mode which is pretty good, I am only at 300hp.