Straight Pipe or no Straight Pipe?
#1
Straight Pipe or no Straight Pipe?
To get ready for the track this year, I'm doing a few things to hopefully get into the 13's(14.2 last Sep.). I currently have a stillen/ frankencar intake and cattman y-pipe. I am definately doing the cattman catback and ES motor mounts. I've read the posts that claim 11whp w/ the straight pipe, but my mechanic says it will only make me run rich and won't see much improvement from putting it on. Can anyone help me on this? What's the truth? Thanks in advance.
#4
At custom maxima their dyno slips on a 95 max show an 11.2 hp gain and 7.5 torque gain at the wheels. They claim you won't get a big noise increase or popping.
Hey nismo "sweet flippin napolean clip". Are you trying to tell me that I won't see an improvement at the track with a straight pipe?
Hey nismo "sweet flippin napolean clip". Are you trying to tell me that I won't see an improvement at the track with a straight pipe?
#5
i didnt dyno with my 4th gen but i swapped my stock cat and cm test pipe, there was no difference in times. i later sold the thing but am now thinking of buying it again, it looks better than the old rusty stock cat, and is lighter. is way overpriced though.
#6
Thanks Ceasar. Your right it lookks nice. If there's not really much of a difference though I'll wait until I need to replace the cat and put in the test pipe. Also any other input you have to offer, ceasar please share; TS ECU? eibachs? 235's instead of 225's. I only went to the track twice last year for a total 6 runs. I know you have a lot more experience at the track, so your advice would be welcome. Thanks.
#13
What catback do you have? I recently installed the cattman and purchased the high flow cat in hopes that it would give it more growl. Having the y pipe and catback didn't have the exhaust note I was looking for. Hopefully I'll have some of the improvement you noticed with the test pipe.
#17
I hear ya man. I've heard the same things about the headers. Gotta have em!! Think I could put em on without the misses noticing? Just don't call me rice cause I'm talking about what I don't have yet. lol
#18
For $30 or so for a test pipe....I figure you can't lose. I threw one on because I was gonna weld in an electric cutout, but that didn't fit....so I'm still rolling around with the test pipe. At least it saves a few pounds, and I know it isn't hurting performance so.....make your own decision. An aftermarket cat seems pointless to me unless you don't want to swap it out for inspection....
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