Top Speed's Cat Back System Installation

[tommy583]

Ok I just read my last post again, I'm not sure if I was clear. My question, is anyone running the top speed or similar mufflers on a 98 model year Boxster. Because on this year the car only has one set of cats. So I wouldn't think I need the test pipes to get rid of the drone caused by the second set of cats on later model year cars. The set up on this model year is header, cat, pipe and muffler. Thanks in advance

[Slate 01]

Is the reducer pipe that attaches to the test pipe supposed to just "butt up" against the u-pipe with the original double wide clamp just holding the to pipes together? I'm having a hell of a time getting that connection to work. It seems I will have to cut off an inch or so on both sides to make it work. Something is going on. Help please!

[shadrach74]

Originally Posted by Slate 01

Is the reducer pipe that attaches to the test pipe supposed to just "butt up" against the u-pipe with the original double wide clamp just holding the to pipes together? I'm having a hell of a time getting that connection to work. It seems I will have to cut off an inch or so on both sides to make it work. Something is going on. Help please!

Look at this post. This is the hardware that I used as well based on Bruce's experience it was 2.5 out of 10 in terms of mechanical degrees of difficulty.

Top Speed's Cat Back System Installation

[jb92563]

Originally Posted by Slate 01

Is the reducer pipe that attaches to the test pipe supposed to just "butt up" against the u-pipe with the original double wide clamp just holding the to pipes together? I'm having a hell of a time getting that connection to work. It seems I will have to cut off an inch or so on both sides to make it work. Something is going on. Help please!

Yes the U bend pipe connects to the reducer by butting up and using the original u tube wide clamp.

Be sure to drive the upstream end of the cat delete pipe reducer all the way as it will likely need to be hammered into place.

you should not have to cut it