matt65

My Y Pipe is 3in, from there back concidering the step down to the current 2.5 (i think 2.5) then through the magniflow and out the twin 2.5 pipes. Will this restriction be noticable?

teke184

i think it would be a restriction. i mean stock is 2.75"

i would try to get a 3" pipe

matt65

Would love to go all the way out the back with 3", but I was wondering if the cost would be justified. If the loss will not be noticed then leave it. You may be right it may be dropping to 2.75", that's not as bad.

JaysGone

In a word NOPE. You wont notice any difference in a 2.5 or 3 inch exhust. Now will it make less horsepower in a word YES. Will it matter in your everyday driving not at all. Dont lose any sleep over this subject. Ive run open pipes to my current SLP Y-Pipe with a 28 inch 2.5 chambered tube doesnt make a hill of beans differnce to the seat of my pants feel of the car. As I dont race the differce in HP isnt worth a thing and the sound is great.

matt65

Thanks!

matt65

Any one know where to order a 3" to 2.75" Slip fit reduce pipe. Any other tips for this transition?

teke184

www.summitracing.com

www.jegs.com

JaysGone

Any decient mufler shop can make what you need and alot cheaper

mourningyou

i have read many posts that suggested a step down in exhaust size about half way down the car for more power, something about flow quality. supposedly as the gases cool in the exhaust pipe, a reduction in pipe size will increase flow velocity, which should increase your torque. either way i wouldn't worry about it unless you are on a radical engine combination.