Well if your going turbo, your going to want to get a 3inch exhaust. I kno Thermal makes a great 3inch exhaust. It will probably cost you around $450-500 new.

is a 3 inch really necessary? it wouldnt b wise two get like a 2 1/4 or 2 1/2 inch?

Originally Posted by Neouser

Now, once you boost a motor, you're increasing the peak cylinder pressure, as well as the duration of peak cylinder pressure. Why? Because of the sheer size of the charge and the massive flame front. A boosted motor will, in fact, produce higher quantities of exhaust gasses, regardless of rpm. What we need here is flow. Velocity is still important (Which is why I recommened a 2.5" exhaust instead of a 3") in order to help scavenge the pulses, but now, instead of being tuned to scavenge a fixed amount of gasses at a higher speed, you need the exhaust system to scavenge a larger quantity of gasses at every speed. See where I'm coming from? A boosted motor produces high power through a larger charge, not a more frequent one.

man i tell everyone the smae thing so here ya go a quote from an earlier thread that is my response. pay careful attention and remeber its not who makes the catback exhaust, it's what will best suit your setup/future setup. no reaseon to waste money on parts like this. sorry i'll stooop ramblin and tell ya. . .


quote-

ok i have done a lot of personal research on this subject for a while. it really comes down to what horsepower range is your goal. if youare looking to put out 200hp at the wheels on a b18c1, or any engine for that matter,you will need an exhaust with at least a 2 3/8" diameter. the most you could put out with this diameter exhaust would be around 230-250. the 2.25" diameter will cap you off around the 180-190 range. 2.5" will cap you off around 290-300. so i hope that helps you on making a decision. although price sound quality and customer service do come into play as well. personally, i would get a magna flow muffler withcustom 2.5" tubing with a resonator. this will save you a lot of money and will cost around 200-250 depending on how much the shop you go to charges. the magna flow will sound just like the comptech exhaust especially if you get a straight through design on the muffler.

so wat i should do is getta muffler n get custom pipin made at a local muffler shop?

man i tell everyone the smae thing so here ya go a quote from an earlier thread that is my response. pay careful attention and remeber its not who makes the catback exhaust, it's what will best suit your setup/future setup. no reaseon to waste money on parts like this. sorry i'll stooop ramblin and tell ya. . .


quote

ok i have done a lot of personal research on this subject for a while. it really comes down to what horsepower range is your goal. if youare looking to put out 200hp at the wheels on a b18c1, or any engine for that matter,you will need an exhaust with at least a 2 3/8" diameter. the most you could put out with this diameter exhaust would be around 230-250. the 2.25" diameter will cap you off around the 180-190 range. 2.5" will cap you off around 290-300. so i hope that helps you on making a decision. although price sound quality and customer service do come into play as well. personally, i would get a magna flow muffler withcustom 2.5" tubing with a resonator. this will save you a lot of money and will cost around 200-250 depending on how much the shop you go to charges. the magna flow will sound just like the comptech exhaust especially if you get a straight through design on the muffler.
thats all good for all motor but this is for a turbo applicatoin...

so wat should u do fora turbo application ?