Can someone tell me if this header and this catalytic converter will fit?

I need to get a new header, catalytic converter, and cat back. I have already picked out my cat back, so now i need to figure out if the header will fit on the cat. It says on the header that the inlet/outlet is 1.75"/2.0" and on the catalytic converter it says its inlet is 2.25" and outlet is 2.5". So just let me know if they will fit the pictures/website of them is below.





http://cgi.ebay.com/ebaymotors/Parts-Accessories_Car-Truck-Parts-Accessories__90-91-92-93-94-97-ACURA-INTEGRA-CAT-CONVERTER-SPOON_W0QQitemZ180318197841QQddnZPartsQ20Q26Q20AccessoriesQQadiZ2865QQddiZ2811QQadnZCarQ20Q26Q20TruckQ20PartsQ20Q26Q20AccessoriesQQcmdZViewItemQQptZMotors_Car_Truck_Parts_Accessories?hash=item180318197841%26amp;_trksid=p4506.c0.m245%26amp;_trkparms=65:2|39:1|240:1318





http://cgi.ebay.com/ebaymotors/Parts-Accessories_Car-Truck-Parts-Accessories__Performance-Header-Acura-Integra-1992-1993-RS-LS-GS-GSR_W0QQitemZ350149601202QQddnZPartsQ20Q26Q20AccessoriesQQadiZ2865QQddiZ2811QQadnZCarQ20Q26Q20TruckQ20PartsQ20Q26Q20AccessoriesQQcmdZViewItemQQptZMotors_Car_Truck_Parts_Accessories?hash=item350149601202%26amp;_trksid=p4506.c0.m245%26amp;_trkparms=65:2|39:1|240:1318#ht_3178wt_944|||No they will not fit|||No, they must be the same size.....|||that converter is the wrong size, you need a 2.0" Inside diameter on the converter to fit your header that is 2.0" outside diameter and then you need to know for sure what size your pipe is at the back of your old converter to be able to get the correct size on the outlet on the new converter.