Re: Exhaust system tips
I have a couple of mods on my S197. The first thing I replaced were the stock mufflers with Flowmaster American Thunder axlebacks. Big difference in sound as far as lower overall tone. I then added a BBK twin 62mm throttle body. Those that say this is a waste of money I am sure have not added one. It makes a difference in throttle response. You do have to follow the directions and adjust your TPS voltage correctly to make it work. I think this is the big issue with most installs. People do not read the directions. You can't just bolt it on and expect it to work properly.
I then added a BBK CAI ( after a mess with a Steeda & SCT tuner ). This really works. Again, follow ALL the directions and you will not have a problem with engine lights. This intake is top notch quality. It does not look cheap like some of the other plastic ones. This mod also made a big difference in performance and sound.
The most recent mod is a set of FRPP shorty headers. These too are not a waste of money. A difference in low end torque is very noticible. The exhause sounds even deeper, and the engine is quieter. Quieter? Thats right. Now the engine sounds smooth with a low deep tone. It sounds like it is not working as hard from inside the car.
Decide what kind of sound/performance you want. If you keep the H pipe you will love the Flowmasters. If you want to change to an x pipe....get the straight through design mufflers. I prefer the chambered sound with the H pipe. Intake does make a difference in exhaust sound as well.
It is YOUR car and make it sound and perform as you like.
2K9 GT with FRPP shortys, BBK CAI, BBK twin 62mm throttle body, Flowmaster American Thunder