well i have a built b16 in a 90 integra w/ ctr intake cam/itr valve springs (dual)/ itr manifold/ ctr piston .25 over/ knife edge crank/ 12lb flywheel/ S1 cable tranny/ fields vtec controller/should i straight pipe on a stock exahaust and headers? im gonna do a dyno soon!!! can someone enlighten me thanks

 

Buy a high flow cat and be nice to the environment.

 

straight pipe it for the dyno,
sweet bud I have a 92 teg ready for a b18c5 swap, motor being built up a bit first.
G2's for life!!!

 

smash the **** out of you stock cat and not get a ticket.

 

Straight pipes are nice for top end power, but as for low end torque, they do nothing. Plus they make the exhaust loud as F*k, and it stinks good.

If you're at the track, I highly recommend it, but otherwise, get yourself a good highflow cat, and call it a day.

Side note - I have a built GSR engine in my EJ1, pushing about 190WHP NA, and about 270WHP NOS'd, I'm using a Random tech 3" universal cat. Works perfectly, flows nicely, and I've had no problems in the last 18 months I've owned it.

 

Bad idea. Unless you put a pipe inside the cat, you will hurt flow.

 

Dude, get a highflow from magnaflow. The fine is $3000 in Cali

 

actually that is a FEDERAL FINE.... so you can get a $3000 ticket in ANY state.. OUCH!!!!!