Boxster 2.7 and 3.2 exhaust swap?

[babeins]

I've done some searches on the site to no avail.

My 2002 base boxster 2.7 has an exhaust rattle. I've tried everything I can think of and it appears to be internal to the cats on the headers. My question is does anybody know if an exhaust from a 2003 3.2L will fit my 2.7? What would need to be replaced if anything? can I keep the muffler and just change the cats / headers? Thx

ABE

[PAULSPEED]

Go to the part section and ask for the part numbers. If

the numbers are different, then the parts are different.

Paul

[babeins]

i know the parts are different, i can look them up. I'm wondering if the different parts will fit.

Anybody know?

[usaf-lt-g]

i know the parts are different, i can look them up. I'm wondering if the different parts will fit.

Anybody know?

Off the top of my hand, I believe the cats and O-2 Sensors are different. Simply swapping in a 3.2 Exhaust I don't believe will work. I "believe" (and I could be wrong) you'd have to also run new wires for new O-2 sensors. In addition, the MAF may need to be re-mapped as well as the ECU.

If I'm not mistaken. the 2.7 has 2 O-2 sensors, whereas the 3.2 has 4.

[drem914]

i know the parts are different, i can look them up. I'm wondering if the different parts will fit.

Anybody know?

Off the top of my hand, I believe the cats and O-2 Sensors are different. Simply swapping in a 3.2 Exhaust I don't believe will work. I "believe" (and I could be wrong) you'd have to also run new wires for new O-2 sensors. In addition, the MAF may need to be re-mapped as well as the ECU.

If I'm not mistaken. the 2.7 has 2 O-2 sensors, whereas the 3.2 has 4.

The cats for a 2.7 and a 3.2 through MY 03 are the same. part numbers are the same. 4 sensors from year 2000 on.

The O2 sensors from 02 to 03 have different part numbers which probably means the length is different.

I just swapped a full system (less sensors) from a 2002 3.2 into my 2001 2.7 because my header/cats were rattling.

I still have the secondaries that are in good shape if anyone is interested in them.

I also live in CA with terrible smog testing, so I didn't want to have any problems from installing after-market headers or cat bypasses.

Edited July 23, 2009 by drem914