Header question

[joshb_]

I just got a obx header........so i lost my cat converter...at high rpms i back fire, and today it backfired and almost stalled out, if i put my stock muffler back on would this help the problem because i think the back pressure a stock muffler makes would prevent all the back firing. Thanks

 

[tAylor!]

i don't really get what your sayin but here's what i think your saying......
you have a OBX header and HAD a high-flow cat conv. but it fell off? and now it back fires???

 

[anekin007]

im lost too, did you backfire and blew your cat?

 

[silverb18c1]

sounds like you didn't put you o2 sensor back on...

 

[joshb_]

No the obx header has no cat, so i now dont have one cuase the stock one is built into the exhaust manifold, i have one of the o2 sensors on, not the one that used to go in the cat cause i have no spot for a cat now. Could it be caused by a bad gasket cause i used older gaskets cause the header was used, i may have a leak could that cause a back fire, sorry its hard to exlpain.

 

[Mirza95VX]

josh u sound like u dont know what ur saying. The o2 sensor should be able to fit into the obx header and if the cat was taken off it shouldnt backfire. Backfir happens when not enough exhaust can get out like if ur cat is plugged. If you dont have one then it shouldnt backfire. Its prolly ur 02 sensor.

 

[joshb_]

Mirza i know what the f**k im talking about..........there is to f**king sensors and when you dont have a f**king cat you cant plug one in so f**k off.

 

[prophet]

im lost just like everyone.. if you're not running a cat, what are u running, a testpipe? open header?.. there should be an o2 sensor in the cat/test pipe and one into the header