interested in your thoughts on using a test pipe on k20z3. basically just larger piping and no cat, i think its called a test pipe ne ways... pros? cons?

 

most people just do a race header, which deletes the cat. or they run a shorty header and a high flow cat. i really havent seen any testpipes on the si, just r18s.

 

Low budget right now i was also interested in a test pipe.

 

heres an ebay header/test pipe $90\\http://cgi.ebay.com/ebaymotors/EXHAU...Q5fCarQ5fParts

 

Sorry to T/J Iv seen those before im not to sure about that header tho doesnt look too good IMO. The test pipe are 40-50bucks would it give you more power just with the test pipe or should i just wait till i can afford a decent header?thanks

 

i saw a nice looking stainless steel down pipe on ebay for $90+ shipping i actually thought of trying it out. if i do ill dyno befor and after and post up my findings

 

That would be awsome!

 

I'm currently using a Type 1 Racing test pipe on my 08 Si and have had no problems with it. Don't buy the ebay test pipe, it's complete junk. I had it before I bought the the T1R pipe and it was awful. A lot of people have had trouble with the ebay ones cracking and the welds breaking.

 

The problem with the ebay pipe is the welding. Yes it is stainless steel, but the hangers and flanges are not stainless steel. It is impossible to weld stainless steel to regular steel and have it last. That is why the ebay pipes fail so often. After 2 weeks of having the ebay test pipe on my car the hanger broke off and left a hole on the test pipe.

 

i had the random technologies high flow cat and it didnt do anything for me on the dyno. this was paired to my greddy Ti-C and stock header. go with a rh.

 

thats not true..there's filler rods/wire made for welding dissimilar metals..er-309 etc

 

not to bash anyone, but what kinda setups are you guys using that you are squeezing that much extra power out by not using a cat? im not tree hugger by any means, but I still kinda have the opinion that if you can feel the power gained by not having a cat, you probably didnt have that much power to start with. I feel like theres a lot more responsible ways of gaining power. sorry, just my little rant

 

I think iv read on here up to 20 more hp with a RH with cat delete those are some pretty awsome gains!

 

ive never seen those kind of gains without a reflash...


but race headers without cats compared to one with a hfc are atleast 5hp more. but a hfc is still a big improvement over the stock one.

 

ill sell you my dcrh.

 

Ah my fault i miss read that.
PM me

 

got one on my si is ebay also , still holding strong after 4 months and it sound very good