Exhaust sytems

[CrisZenithBlue]

There is a bit more to the Fister than the Pedro exhaust mode. Both have the bypass pipes but the design is a bit different (not sure that makes any difference to the sound though). Supposedly the fister has more tricks up its sleeve but not exactly sure what they are. One thing I have noticed is the fister has a little metal mesh welded inside the input tubes of the exhaust on both sides. There might be more but that's the only thing I was able to see.

In terms of sound they are different. Fister is a lot more raspy which I love. I had a Pedro exhaust some time ago and it didn't sound as good. Granted I had all 4 cats back then and that had a negative impact. I only had the fister with the 2 main cats and I know it makes it louder and makes it crackle and pop.

This is my 3rd muffler so if I had to do it all over again it would be the fister with the cat delete pipes no doubt about it. It's a mod I will never regret and makes my day every time I drive the Boxster.

[glenf]

do any of these systems add horses at all?

[CrisZenithBlue]

very little.. removing the second set of cats and adding a muffler with better flow (aftermarket ones probably work better for that) adds a little. also, by doing that you shed some weight which is great. not with the Fister thought.. i think its the same weight as the untouched OEM, it felt heavy in my hands.

i probably shed around 40lbs when i removed the cats and had this light muffler from Top Speed. car felt a little bit quicker but not by much.

if you want to add noticeable power with exhaust mods you have to get sport headers and tune the ECU otherwise it all seems negligible. Porsche is known for putting restrictive headers on the Boxster to keep the power down, we don't want it to be a 911 now..

most of us have done it for the sound more than anything. if you get it right it really transforms the car for the better but i will say that i am just about DONE with exhausts and rusty bolts!!