Will this make your exhaust system sound better and more gain or its just for the sound? I'm watching this right now guys.

**mod edit - no links to eBay**


It's pretty cheap.

 

power and sound. greenmachine did his recently he said there was a hefty amount of torque gain.

 

I need to do this one of these days, as im still running my original 220k TL-P cat I bet i can free up Abunch more ponies doint that and replacing my puny 2 inch pipe

 

I thought HP can be gained, but you'll lose torque.

 

Hey Rpappi, I'm interested in this mod, but when I tried a search for posts by greenmachine using the keywords of "magnaflow" or "catalytic" or "converter", I couldn't find anything. Did he post his mod under something else?

 

In the CL forum

 

Thanks Kris. It was buried in the Flowmaster Series 40 muffler thread. He didn't use the same cat the OP is talking about, but the Random Technologies one. Sounds like a good mod.

Anyone have any experience with the Magnaflow one ^ ?

 

Im sure they are all very similar. If im not mistaken the RT cat can be had in a direct bolt on?? doesnt need to be welded?

 

doesn't the RT only fit P models and not the S.. How much gain would the type-s see with high flow cat?

 

To the OP that is a Magnaflow universal cat. You will have to have flanges welded in and those are hard to obtain. I have search everywhere for those Honda oblong 3 bolt flanges.

Greenmachine bought the Random Technologies cat which is a high flow bolt on cat. It is also stainless steel w/ a ceramic substrate 300 cell. The Magnaflows tend not to be as high of quailty. In this case it is universal but their bolt on cats have many a time not even come close to fitting. Needless to say I have not been happy w/ their cats.

The Random Tech cat is designed for the TL-P, CL-P but it can work on the Type S. You will need to enlarge the 3 bolt holes on the b-pipe where the cat meets it and you will need to extend the 02 sensor 6".

 

What is the pipe dia on the RT?

 

In summation, the RT cat it a direct bolt on for premium models with no fabrication/customization required? Only the Type S models require one to enlarge the 3 bolt holes and extend the 02 sensor?

To your knowledge are there any dyno's out there , especially from a member?

 

High flow cat = More HP & Less MPG?

 

Hmm - no rear O2 sensor fitting on it. You'd have to modify it.

 

how does it get less gas milage.

 

https://acurazine.com/forums/showthr...ghlight=random

 

No it doesnt reduce mpg under normal driving

 

That is a good thread. It shows what is included and how to modify it to fit a Type S. The CL-P, TL-P have the 02 sensor in the middle of the cat. The Type S has it after the cat so that is why you need to extend the 02 sensor wiring. Other than that you have to enlarge the 3 holes on the b-pipe to cat flange and that is it. No other modification necessary.

fsttyms1, the inlet and outlet are 2" in diameter. RT always has somewhat smaller inlet and outlets but let me tell you they flow well. When I put one on my 99 Accord turbo i4 the boost increased 4-5psi. I couldn't believe how well it flowed over stock. The core is obviously larger.

 

I will be looking into one of these this winter!

 

you have to extend the o2 sensor wire regardless of the type s or premium. i personally installed this on my cl-s, and the minor modifications to get it to fit were very easy.

 

what is involved in extending the O2 sensor? I will be getting a RT Cat when I get my taxes right along with a new TB, IAC valve and a rebuilt tranny.

 

cutting and adding length to the wires.

 

how many wires need to be cut and do you need to solder them? can you buy a new O2 sensor with longer wires to fit?

 

i believe there was 3 wires. i would solder for sure. also use heat shrink tubing and make sure to seal it up real good.

 

I think its 4 wires, You can buy extenders online. But i would just cut solder and heat shrink to seal the wire.

http://www.casperselectronics.com/Me...ory_Code=honda

 

those extenders look like 100% PNP, looks like it would make it a lot easier than messing with wires on my back under my car. Thanks for the link fsttyms1

 

one question guys, can the TL-P cat be fitted on to the CL? If so, then a buddy can use some RT cats for his CL.

 

Yes. they are designed for both

 

 

not for nothing, but why would you be on your back? you need to unscrew the o2 sensor out of the stock cat, and then you can just unplug it and wire it up very easily.

 

I would personally Unplug it first then unscrew it from the cat. I would risk twisting the wires that much

 

I don't have a lift so I would be jacking my car up and then sliding underneath like always. I am not experienced in messing with electical wires too much and would rather not solder on my back. If I had a lift everything would be a lot easier but oh well.

 

I was just wondering, what kind of sound would it produce?

 

Well you would remove the sensor and bring it in the house, so you woldnt be on your back soldering

 

^^^duh, I'm stupid. I can't believe I didn't think of that. My question then would be how do you heat shrink and what do I need to get to do that?

 

Its just a rubber tube you slide over the wires before you connect them together. Once you soldier them together you slide it over the area and use a lighter or heat gun and it shrinks tight over the area. You can get them at auto parts stores and home depot lowes ect

 

sweet thanks for the info.

 

^ yea, i meant unplugging it, but i was getting at the fact that the sensor would be removed entirely for the install so you could solder at your leisure on a work bench. home depot sells everything you need. just make sure you slide the heatshrink tubing over one end of the wire BEFORE you solder, otherwise theres no way to get the tube over the wire.

edit: im an electrical guy, so i have tons of solder, soldering gun, tubing, connectors, etc. if you dont have any of that, its probably cheaper for you to just buy the extenders.

 

hehee...sorry guys I don't look in here that often...

The RT cat fits just fine for the TL-P and CL-P, just remember that the o2 sensor wire has to be extended. I didn't feel like chopping it so here's what an exhaust shop did, and they did a great job...(I'll take pics eventually.)

1st, they chopped and downpipe flange back about an an inch and a half then rewelded the flange...
2nd, they chopped the front of the RT flange about an inch...then rewelded...
3rd, they chopped the rear flange off to weld up the 2.5" pipe going to a high flow racing muffler called "Twister" (very need design on the inside of the muffler)
4th, 2.25" pipe came out the rear of the high flow muffler down to the original y-pipe for back pressure...

if you've seen my pics in the CL DEP section you'll notice I had the rear mufflers removed and had 3" chrome pipes installed.

The exhaust is quite loud but I did gain a lot of high end power. AND, NO CEL lights came on with the new RT high flow cat!

There is a nice rumble at idle. I don't think the exhaust sounds ricey at all. It was a lil too loud for Rpappi, but he did like it though.

 

^^^you have a premium model?