I can only get one at this time. Which one should I get? Art pipes or mrev2 with spacer on 06 rev up? Any suggestions or opinions would greatly be appreciated.

 

If I were in your shoes I would DEFINITELY go for the mrev2 and the 5/6th plenum spacer. Why, that combo will net you more gains over art pipes. Especially if you're on stock exhaust. Even if you're not on stock exhaust it should STILL net you more gains. You should be trying to get more air in to let more exhaust out.

 

Motordynes MREV2 and spacer is the path to follow with your '06 MT G35! IF you have a OE exhaust installing the ART pipes would sound terrible! Only the best aftermarket systems aren't overwhelmed by the ART pipes extra volume which is true of high flow cats too...Gary

 

plus you wouldnt want to dump ur cats if you arent getting a tune after