Hey guys, recently I was comparing a few dyno charts and one of them had an AFR of 13.5 low end around 2k to 3k rpm. I'm a noob but how lean is too lean? And how far can we go? Thank you!
Any review on this? Heard someone said AT just nice with S-Flow setup compare to Straight Flow exhaust! Plan to install straight flow (HKS Silent Hi Power) with more 'garang' sound (EVO sound ). Mind to...