How long can/should you go without PCV with midpipe exhaust (like ARCS)??

**Travist1161732** · 11-21-2011, 10:23 PM

I know it runs lean, but is there any damage to the engine. I've heard of people running full exhausts w/o one, but besides less power potential being met, what is the consequence. I will get one, but cash strapped right now, and won't have one for 1mo. Any issues? BMC air fter shortly after that. Thanks for help, happy turkey day.

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1000RR Bahrain · 11-22-2011, 12:49 AM

I had my ARCS exhaust without the Bazzaz ZFi and ZAFM and performance airfilter for nearly 1 month, no issue at all, but i had a lot of back fires

I suggest you install Driven block plates which should reduce the backfires to 99% and to give you more accurate reading of the AFR.

The difference after you install Bazzaz or PC5 and airfilter with your ARCS plus the help of a proper dyno tune is great

you'll really like it

URBAN LEGEND · 11-22-2011, 01:05 AM

Bike will be fine but won't run to its potential without the tune.

Kamran · 11-22-2011, 01:19 AM

Devil full exhaust here for the last 3-4k miles. no pvc. I had few backfires the first couple of days but the ecu learned and adjusted and now no backfires at all. I'm sure I'd get a few more ponies with pvc but don't really miss it. No major issues whatsoever!

**Travist1161732** · 11-22-2011, 07:42 AM

great, thx all, better peace of mind. this way the mrs. doesnt get too mad with me blowing the bike budget again, and ideas for christmas!