off the shelf performance rear box

[arnie]

Oh wise ones what is the best off the shelf rear box for 2001 vr4?

[dickytim]

Oh young apprentice, why not backbox at all :P

[-LegnumVR4-]

Oh wise ones what is the best off the shelf rear box for 2001 vr4?
I would say custom, 3" all the way with a couple of rez's in it. The muffler u can select urself, 3" straight thru if u want max power, noise level can increase (drones a lot) if u also do the front pipe as well. Most Japanese designed systems have mufflers that have a 3" in but reduce down to about 2" inside. They have exhaust noise limits to work to.

[bernmc]

a 2.5" system should be fine unless you're going for big horses - in fact I suspect you might lose power with a 3in system on a stock engine...?

As for which back box fits straight out the box - haven't a clue!

[dickytim]

isn't the exhaust 2.5 inch factory ?