Ok so im doing new exhaust and im not sure if there will be a difference(performance wise) between 3inch in and 3 inch out x2 or 3inch in and 2.5 out x2 muffler?????

HELP PLEASE!!!!!!!!!

 

3" turbo-back makes a huge difference.....

 

Does anyone know about how much it should cost to have mandrel bent catback exhaust made and installed ????

 

$300-$600

 

Would the price be lower since i have a muffler already ?

 

Yes....Then it would just be piping and labor....

Also add a resinator is you want one....

 

as of right now im might be keeping the car for only a few more months and getting a new s40 so do u think its worth getting 3 inch or just buying a muffler and putting it place of stock one ???? i want a nice sound while i still got her .... would i get 2.5" / 2.25 or 2.5 ?

 

If you wil be selling the car then just do a 2.5 muffler and that is it......

If it were me....I would just leave it as is, and put the money towards a 3" on the new s40.

But if you just want a nice sound then by all means sitck just the muffler on there.....That way you will only be paying for the labor....~$100????maybe???

 

You could just remove the resonator, I did that on an old car and the exhaust became much more throaty.

 

If your getting new don't waste the time or money on the old one.

 

Ok so i put on a 2.5 all around magnaflow and it is so close to stock i feel like i wasted time and money .... on the good side if in 3 days if its still relly quiet i got a friend with camaro willing to buy....

so im about to order 80series flowmaster but i hear it doesnt flow like the magnaflow .... im worried about back pressure messing up my turbo ?

does removing resornator effect inspection ?

 

So why are you trying to do something to a car your going to be selling? It just seems like a waste of time and money in the long run if this car is going to be sold and a new one bought.

 

The resinator and cat are keeping the system. Plus the turbo is also a muffler.