alright my 99 automatic 4.0 xj is getting about 11 mpg. i know my 31 dont help out much but i dont think they are the biggest factor right now, so i think ive narrowed it down to exhaust. my hexhaust manifold is cracked and my cat is rattling.
anyone have any experience with these headers? mine has a nice crack in it and ive tried thermosteel twice and still has yet to fix the problem
http://cgi.ebay.com/ebaymotors/JEEP-EXHAUST-MANIFOLD-HEADER-cherokee-wrangler-comanche_W0QQitemZ200162508766QQihZ010QQcategoryZ33632QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
cheap but i want something to last, i know everyone is have great luck with apn but these would save some more money for this cat
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1&item=320168249215&ssPageName=STRK:MEWA:IT&ih=011
another cheapy but would i have to weld a bung for o2 sensor? or can i cut off that part of the pipe, saving the bung and exhaust clamp it back on the cat and rest of piping..??
also thinking about replacing the muffler with just a cheapy from autozone,
http://www.autozone.com/R,APP1431919/vehicleId,2548302/initialAction,partProductDetail/store,369/partType,01917/shopping/partProductDetail.htm
that link may not work but its the cherry bomb turbo muffler
or would the dynomax cat back help more or do i really even need the tail pipe to improve mpg?
also can i just exhaust clamp all this stuff together, i have acess to a mig welder but would rather clamp it instead.
and one more would moving and modifying the intake to the other side of the engine bay away from the exhaust manifold lead any benfit? kind of like the wranglers, maybe move battery to other side... thanks :wave1:
anyone have any experience with these headers? mine has a nice crack in it and ive tried thermosteel twice and still has yet to fix the problem
http://cgi.ebay.com/ebaymotors/JEEP-EXHAUST-MANIFOLD-HEADER-cherokee-wrangler-comanche_W0QQitemZ200162508766QQihZ010QQcategoryZ33632QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
cheap but i want something to last, i know everyone is have great luck with apn but these would save some more money for this cat
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1&item=320168249215&ssPageName=STRK:MEWA:IT&ih=011
another cheapy but would i have to weld a bung for o2 sensor? or can i cut off that part of the pipe, saving the bung and exhaust clamp it back on the cat and rest of piping..??
also thinking about replacing the muffler with just a cheapy from autozone,
http://www.autozone.com/R,APP1431919/vehicleId,2548302/initialAction,partProductDetail/store,369/partType,01917/shopping/partProductDetail.htm
that link may not work but its the cherry bomb turbo muffler
or would the dynomax cat back help more or do i really even need the tail pipe to improve mpg?
also can i just exhaust clamp all this stuff together, i have acess to a mig welder but would rather clamp it instead.
and one more would moving and modifying the intake to the other side of the engine bay away from the exhaust manifold lead any benfit? kind of like the wranglers, maybe move battery to other side... thanks :wave1: