i bought some 5" exhaust from summit racing for $380. comes with all the clamps and a muffler. i am running the muuffler that came with it and it is very deep. cruising at under 2k rpms it is not noticable. getting on it though is another story. i am very please with the ease of install and sound of the exhaust. revving it at idle you can hear the turbo spin very clearly. now i am awaiting somone to sell me rv275 injectors and i am also in the market for a 6" turn down tip my new exhaust. i recommend this system to anyone. the price and quality is hard to beat!

 

I've got the new MBRP 5" system, love it.

 

is that ffrom the downpipe and back? what size is the downpipe?

is it 5 inch over the differential and coming out behind the wheel or how? does it work on a 2wd? ... clearance between bed and differential...

 

I don't have the summit.. but the Expandit it brand.. about the same price.. other than I had to paint the clamps.. I have liked the system... This one is a 4in downpipe to 5in after the downpipe... and have sold a few.. everyone seems to like them.. especially for the price.. the only thing I haven't liked is some of the sets have been a little scratched when they came in... I got a 4in D-Max kit waiting for a truck....

Get some pics up of the new system.... (Like I have room to talk... )

 

MBRP has a 5x5x12 turndown (p/n T5055). Anything bigger than that you need a 6" stack and an adaptor. I just got a magnaflow 4x5x20 ands it pretty nice. The turndown not only keeps the soot off your truck it also doubles as a street sweeper and/pr leafblower

 

maybe i'll have to look at the mbrp turn down. how much does it run? my exhasut has a 4" downpipe and goes to five inch after that. so from downpipe back is 5". even with the 4" dp it is a tight fit, but i had polenty of room over the rear axle for 5".