I have a couple different small mod combinations to throw at you guys. I purchased my MR IX about a month ago and probably around Feb. i will start to mod it. I have been doing a decent amount of searching, trying to find information on this. I would like to get more people's opinions on this though. One of my first questions is, will a 2.5" test pipe bolt up to a stock DP and cat back exhaust? Also will a test pipe throw a CEL even if it has an 02 bung in it? Here are the two mod combinations. First, K&N drop in filter, UNOS BC set at 20-21 psi, 2.5" test pipe, and mail in dynoflash. Second, K&N drop in, UNOS BC set at 20-21 psi, 3" cat back, and mail in dynoflash. If you guys could give me your opinion's on these two set ups and which would make more power? I'm sure i'm going to have a decent amount of mixed opinions on this. Definitley anyone that may have experience with set ups similar to these please post. Thanks a lot, talk to you later.

 

Anybody?