Quote:
Originally Posted by ilikebmxbikes
i do believe these headers provide additional over a standard NA fbo e9x. I am betting it is 5-10whp.
To some people 5-10whp would be a good gain and to others it wouldn't. Arguing worth is pointless. Some guys on here spend $8k on wheels while some buy cheap $1k gravity cast wheel sets... we all have different situations and priorities.
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Based on what? 20 whp is standard for catless xpipe gains.30 with a,tune.