Cat Back Exhaust

[*daz*]

I'm looking at getting the catback exhaust system done

for my r33 na but i'm not too sure on what size would be

best suited. I'm thinking of a 2.5inch because i've heard that anything

bigger (3 inch or 3.5inch) isn't well suited

i have found a second hand stock cat back off a gtr that the guy says is 2.75inch for $100

would this be a good grab?

any help would be appreciated thanks.....

[noely1]

dont go any higher than a 2.5" or ur losing to much backpressure on ur non turbo.. dont go any lower than 2.25"

get a hi flo cat, 2.5 or 2.25" (mild steel if u want it to be louder or stainless steel if u want it to be shiny and last longer) into a mandrel bend with a good muffler (dont go cheap on mufflers or you will regret it..) and then a tip if u want... but i'd keep the tip loooking as stock as possilbe some nice twin tips out the back looks not to bad cannons r just gross now...

my 2c goodluck

[TwoCents]

+1 for better muffler, just got a whole new exhaust from insurance, has some cheap cannon on there before. Now have a Varex one.. soo much better takes away that raspy noise aswell

[mad082]

go an oval muffler. something like a lukey performance flow. just got a 2.5" one put on the pulsar and it sounds good as well as being quiet. i got a catback system made up at my local exhaust place (excluding the centre muffler where we used the old one) for $170 including the muffler. i was originally just going to get the rear muffler replaced and they were going to charge me $120 including fitting.