I've searched all over , posted before..... and still confused


trying to fix my rasp problem.....i have the 2.75" strup (non resonated test pipes) into a Fujitsubo Performance Y-Pipe 2.75" into 1 3" outlet to a 3" midpipe with no resonator and now just stock exhaust


had rasp only on cold starts with no resonator but now with the test pipes i get it from 2,400 to 4,000rpms

not sure if i should through in a resonator or a bigger one, or just get hi flow cats or labree resonated test pipes

 

get rid of the test pipes. Look into a good set of HFC's the power difference between test pipes is minimal at best. There was only an average of 1.5 hP difference between when i had Z1 Test pipes and switching those to crawford HFC's, and the best part was no more smell!

 

keep the test pipes. i DONT know why people are saying all this noise bout 1.5hp i race a lot and noticed a HUGE DIFFERENCE in power gains with the test pipes i have no smell anymore . i have easily pulled bout 5 cars more ahead oppose to me having catalytic converters.

Now about your rasp sound test pipes are known to be raspy but not TOO LOUD make sure you have no exhaust leaks jack it up and check to see if all bolts are there.

Now bout exhaust set-up work from headers to the outlet of your exhaust you should always work from small to big for example like 2" to 2.25" to 2.5" to 3.0" etc. it is high possible to lose power if you have any interruptions in size fitment like big to small to big etc.

 

If you don't like the rasp get rid of the test pipes.

You can have a set of 3" or 3.5" HF cats made to fit in there which should flow about as well as test pipes.

 

if i go turbo will it get rid of the problem?? or put a cherrybomb or resonator muffler in there?

 

I have megan resonated test pipes and a custom true dual greddy evo 2 that has all the bottlenecks removed and car pulls really hard. I felt this mod more than a plenum spacer...and plenum spacers get great reviews on here for bang for the buck.

 

still need help?? should i put a smaller exhaust in? or another resonator?

 

I had a little raspyness when I first put on the Stillen dual. I replaced their resonators with some FlowMaster mufflers. Fixed things quite nicely. (I also had headers and HFCs at the time).

 

i'm just add more resonators and pre mufflers...hopefully that will help

 

You are so full of **** it isn't even funny.

Yea, 5 cars, same car, cat vs test pipes. Riiiiiiight, back to the short bus for you.

 

haha....even I didn't even notice that much more gain....just more sound lol and nuisance ....(mind over matter I guess.....maybe only a little at my top end...but now it bogs more at low end)


i just want a cleaner sound without having to remove them