3" exhaust to 2.5" to 2.25" muffler

[Prettyazznouka]

Would that really make a difference since I have 3" dp to the cat. I want to cut
off the cat then continue past the y pipe then b4 the muffler(magnaflow) use 2.5" and weld up to the muffler.

Question is, would that really make that much of difference in regards to the turbo and exhaust flow. Or should I get 3" mufflers and go 3" start to finish

 

[BorHor]

I'd go straight to 3". Going big to small will interrupt the exhaust flow.

 

[suprahero]

size matters!

 

[AF1JZ]

Do a full 3''

 

[Bigzavs]

going to exhaust that small will be like shoving a cork on the end of the downpipe


3" all the way

 

[Prettyazznouka]

I meant 3" dp, 3" mid, 3" x pipe, 3" where resonators are, then before the muffler use 2.5" to weld up

or just get some fleabay 3" mufflers or something

 

[MOON]

question..where do you guys get the 3 in, high flo cats from, i am going to get the 3 in downpipe but just wounder about the cat? since i alreaddy have the 3 in cat back, might as well doit all ,, thanks

 

[Prettyazznouka]

If your looking to pass emissions with a high flow cat, dont waste your money. If you dont care about that then ebay or hottexhaust.com