Quote Originally Posted by aldo10 View Post
Hi fellas, I followed that thread and got the trusty soldering iron out. Car starts and runs fine. The engine check light stays on but I'm guessing that was always going to be an issue.

Booked in for an exhaust system next week. It's running Xforce headers and I was going to get a high flow cat and 2.1/4 system through to the back. If anyone has any input on alternatives I'm all ears. A tuner I spoke to earlier in the year said 2.1/2 but for some reason the exhaust shop thinks it's funny. Says he puts 2.1/2 on his V8's so wasted on a 1.8.

A HUGE thanks to those that offered advice and the helpful threads I searched and gained valuable information. Absolutely sensational information in this forum which I couldn't have completed this job without.

Thank you
Good work getting it going.

Most exhaust shops won't know anything about Hondas.

The stock type r is 57mm after the headers (2.25") tapering to 54mm for the rear axle back section.

2.25" is fine for a stock engine, 2.5 will just be louder.

What is the size of the collector on the x force headers? If it's 2.25 there's not much point getting a 2.5" cat back except for sound. Just make sure you get a decent cat converter and muffler so it isn't strangled too much.