motordyne makes good plenum spacers

i hear a z-tube helps the sound alot

 

how much is a z-tube

 

I got mine $60 shipped.. just look in the marketplace, ebay and craigslist

 

alright man is there any name brand for the z tube i havent really looked for one yet im just wondering cuz i am new to the infinity world

 

You can get one off a 350Z.. OEM FTW!!

 

alright ill have to look into that after i get the motordyne spacer

 

cut it off and weld a replacement piece pipe on , get spacer, a z tube, and a popcharger and a set of test pipes with those 5 things done you will feel a difference

 

MotorDynes spacer is the best way to increase HP for the '03/'04 coupes! Sound change can be done by using a z-tube and I'd also include a K&N drop in filter available at most auto parts stores. To further increase HP most of the restriction in the exhaust system is in the OE cats, replace them with Berk's HFCs. (high flow cats) Give Rick a call at Riverside Infiniti for the spacer/z-tube 800-919-8130 they're our sponsors here on DRIVER.
Gary

 

alright man thanks for that....how much do the Berk's HFCs cost

 

Too much lol , cut the pipe man get test pipes call it a day