Originally Posted by spensley
I think the CAI makes more HP - fairly sure all the info is on TVT's website...
i.e) TVT250 uses an airbox - TVT265 does not.
I dont think so. TVT offers these combinations:
1) stock XF airbox with K&N-Filters
2) large MB (CLK320) airbox with polished intake tubes
Don't mix up the CLK320 with the SLK320 airbox which is used by some forum members. The SLK320 airbox has the same flow like the stock XF airbox - it just looks different but it doesn't produce more power.
3) CAI with our without Engine-Cover (no airbox, only for the looks)
No. 1 is used in the TVT250 kit, No. 2 and 3 are both used in the TVT265 kit. No. 2 and 3 make practically the same power - 2 produces slightly more torque while 3 is a bit more powerful in the upper revs.