00 accord high flow cat...

[struckaccord]

I have a high flow cat, or test pipe i guess would be a better description...When I received it there was no port for the o2 sensor, which im sure is very important for the engine to run properly....Does anyone know to modify this so i can install it along with headers??? 4cyl 2000 accord lx... Any help would be greatly appreciated!!!

[jag]

You will need to drill and tap the orifice for the sensor. Tap and die set will set you back about $50.
Good luck,
jag

[struckaccord]

Thanks, I was beginning to think id get no replies...Do you know what size hole to drill? Will I gain more torque, or high end HP...Thank alot!!!

[benjamming]

Are you sure that you received the correct part?

[struckaccord]

Yes and No.!!! Its for a prelude but its the exact same bolt battern and dimensions....Just no o2 port....EBAY isnt always as glamorous as people think....I tried every way possible to return it with no success...So Im making the best of it!!! There isnt a muffler shop in the state of Michigan that will touch it, which I figured would happen... Not sure if the results will be worth what im going to have to do (financially) to make it work!!! Thanks

[jag]

Originally posted by struckaccord
Thanks, I was beginning to think id get no replies...Do you know what size hole to drill? Will I gain more torque, or high end HP...Thank alot!!!

Measure the sensor thread OD with a tool called 'caliper'. See if you can find a cheap plastic version of it for ~$5. Make sure the hole you drill is slightly smaller than the measurment, then tap w/OD size. As to the gain, don’t expect a huge difference. My guess is ~3-5 HP more.

jag