An Open Challenge to the Aftermarket

Originally Posted by Jordo!

I just went and reviwed 6 different dyno threads, and the average gain from baseline with the CAI was about 5.33%.

I would estimate (based on what few dynos we have) that K&N+smooth tubes will net about 3.5-4% gain.

So what does the extra 1.83% to 1.33% gain in power mean?

Well, on a 275 whp car, it's 4-5 whp.

Thus, the CAI's should net about 4-5 more whp than the high flow panel filter+smooth tube set up.

Is that worth more than double the price ($200 vs $500+)? That's up to the consumer to decide I suppose...

So....

If you are on a budget and want very good bang for the buck -- K&N+smooth intake tubes should get you within a feaew even closer.w whp of the pricier CAI.

For the few extra whp, if you have the cash or can get a really good deal on a set, the CAI will slightly (by ~1.5%) outdo the OEM set up...