Exhaust, ECU, Cold Air Intake - Long
This is the background behind me asking about the Dansk muffler. Below is a reply I just did to an older thread on exhaust systems:
Hi all, I just got a 2.7 L 2000 boxster and had some funds set aside to do some mods. My first stop was the Autothority Pitstop in DC (a 3 hour drive from my Central Virginia location). They chipped the car and put in a TTP cold air intake. Very big improvment in performance. BTW, I was very impressed by the Crew at AP and would recommend them to others.
I had also ordered a set of Fabspeed secondary bypass pipes and had my local mechanic put them on about a week after the tune. They seemed to give a modestly louder, more agressive sound and perhaps the car is a little more freely reving with the fabspeed pipes.
The car is running great, in fact, I just had the shift cables replaced at Euroclassics in Richmond yesterday and the mechanic knew my car from a previous service visit before I had the ECU and intake mods. He testdrove the car after the mods and he could not believe it, he wanted to know about the HP increase (AP folks say 29+ hp increase) and such and said he thought my little 2.7L Boxster now felt like a Boxster S (which I have never driven...).
Anyway, me wanting more of a good thing..... how do you spell expensive exhaust systems. The folks at AP have a ECU chip that they spent a lot of time developing for the 2.7L Boxster setup with the TTP intake I have plus a set of German headers (with no cats) and a special 200 cell high flow cat that would replace my Fabspeed secondary bypass cats.
That would be an exhaust rig with headers (no cats) and only a high flow cat where the secondary cats live in a stock car going the the stock (or maybe Dansk) muffler. This rig is supposed to sound wonderful (even with stock muffler) and really allow the car to breath in and out.... that is go fast. I will probably have the mod done in the next couple weeks.
BTW, my gas milage dropped into the teens after the ECU and intake mod, but that was just because I was driving with a lead foot most of the time. I took a trip to Florida last week with the car with the mods and keeping the car at about 70 mph with the top down, and no AC, I was getting better than 29 mpg when I could behave myself.
BTW, when I get the headers and such, I will be taking off my 2-week old Fabspeed secondary cat bypass pipes and will probably be selling them if anyone is interested.
Ed
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