hey guys i recently just picked up a 2001 civic ex 2dr 5speed v4 1.7L. After driving it for a few days its starting to make sort of a rattling noise coming from the head pipe. im looking to replace the intire exaust and add after market catback. could i replace only the head pipes etc stock up to the cat or sould i replace it all aftermarket?>

 

you can either do it one of several ways:
1. tighten the nuts and bolts to the header.
2. Buy all new exhaust (aftermarket)
3. or buy them in sections