Should I run straight pipes??

[KRAM36]

I have been wondering about trying these right off the cats from the exhaust manifolds and pipe it out from there.

3 Disk Flanged Inserts : 2 1/2" Diameter

[Dr.Strangepork]

I have tried running my car with the muffler disconnected. It's louder than hell and sounds like crap. With my aftermarket straight through muffler, it's just the right loudness and sounds great

Originally Posted by KRAM36

I have been wondering about trying these right off the cats from the exhaust manifolds and pipe it out from there.

3 Disk Flanged Inserts : 2 1/2" Diameter

The Boxster's exhaust piping is an oddball size so you can't actually fit any stock size CC inserts in there. I think it's somewhere between 1.75" and 2". I tried 2" CC inserts and they wouldn't fit.

[jb92563]

Without the cats you will not have a ca street car as it will not pass emmissions.

2nd cats may be removable perhaps.

I just put on a Top Speed cat back system so i'll report results with all cats still in place .

So far i noticed it has a lower throaty idle, but the system needs a break in period.

[Touch The Icon]

I'm so glad I found this forum! You guys just saved me from making a horrible mistake. I definitely dont need the Simi PD on my tail!! Hahaha Gonna order some brake lights and side markers instead.

[truegearhead]

Originally Posted by Dr.Strangepork

I have tried running my car with the muffler disconnected. It's louder than hell and sounds like crap. With my aftermarket straight through muffler, it's just the right loudness and sounds great




The Boxster's exhaust piping is an oddball size so you can't actually fit any stock size CC inserts in there. I think it's somewhere between 1.75" and 2". I tried 2" CC inserts and they wouldn't fit.

I just installed these in my car...now if I could just get it to start I'd tell you how it sounds.

By the way I was basically running straight pipes, headers, no cats, eBay glass pack and it was way way too loud. And I like loud cars but this was to much. It was great for idling and drivin slow by to couldn't step on it with out feeling like a total dick