UD Pulley or Exhaust?
The stock header dosen't compare to the RRM header - so if you get the cat delete from RRM and don't change the H/DP you might see 3-5HP depending on your other mods (i.e. UDP & CAI)...if you plan on doing the header and the downpipe it's not even worth keeping the stock CAT on because it's so restrictive. You can eather (for `05+ models) buy the CAT delete along with everything and then just bolt the cat back on for e-check, or buy the high flow cat and be done with it all...
If you already have the intake I would do the exhaust system. Intake won't do much but give you a cool sound without exhaust. They work together. The UD pulley is nothing to buy later on. Sure it'll give you a good gain, but in order to make your intake useful you have to let all the air you're bringing in out somehow. That's where the exhaust system comes in. If you're sporting the RA then you already have the stock header all you really need is a cat back, and downpipe if you so chose to do it. Just my two cents....
Intake does provide some gains without an exhaust, not just make cool noises. Exhaust does less without an improved downpipe or HF cat. You need more than just a cat back to improve the RA's stock exhaust system.
Crawl under your car and take a look at your downpipe. That is the most restrictive part of the exhaust system.....it looks like a pancaked pipe.
Intake does provide some gains without an exhaust, not just make cool noises. Exhaust does less without an improved downpipe or HF cat. You need more than just a cat back to improve the RA's stock exhaust system.
Intake does provide some gains without an exhaust, not just make cool noises. Exhaust does less without an improved downpipe or HF cat. You need more than just a cat back to improve the RA's stock exhaust system.
Im assuming the sound will be liek crap??
IIRC....Otter used to have it on his car and told me it was LOUD. I don't know about sounding like crap, since that is subject to personal opinion.
RRM used to sell just the downpipe piece, but I'm not sure if they do anymore since they came out with the Header/DP combo.
IIRC....Otter used to have it on his car and told me it was LOUD. I don't know about sounding like crap, since that is subject to personal opinion.
IIRC....Otter used to have it on his car and told me it was LOUD. I don't know about sounding like crap, since that is subject to personal opinion.
Edit: Here's the video, shot by E2L. http://home.comcast.net/~rmbrowning/otter_run.wmv
It's louder than the video lets on, but you can clearly hear the annoying high pitch of it. When I go catless again with the new resonator I'll try to get some sound clips.
Last edited by otter; Mar 6, 2007 at 01:36 PM.
I'll be putting it back on my car in the near future, but this time with a 28" magnaflow resonator. Should sound better than when you heard it at WWI. A number of people who have catless RA's (either via the header/dp or just the dp) have reported that their sound got a lot better by replacing the stock resonator with a better unit. Lemme see if I can find the video of my car with no cat and just the magnaflow exhaust. Should give the orig. poster an idea of what to expect if he/she gets the header.
Edit: Here's the video, shot by E2L. http://home.comcast.net/~rmbrowning/otter_run.wmv
It's louder than the video lets on, but you can clearly hear the annoying high pitch of it. When I go catless again with the new resonator I'll try to get some sound clips.
Edit: Here's the video, shot by E2L. http://home.comcast.net/~rmbrowning/otter_run.wmv
It's louder than the video lets on, but you can clearly hear the annoying high pitch of it. When I go catless again with the new resonator I'll try to get some sound clips.

I forgot about that video. I was holding my daughter (she was 7 months at the time) and trying to take video. She wanted to commentate on your run, and I was indulging her!! 
oh really, cause alot said they did feel gains they just werent real significant...and yea a catback sounds good but its alot more money and doesnt really get you real good gains without a header and dp.
I'll be putting it back on my car in the near future, but this time with a 28" magnaflow resonator. Should sound better than when you heard it at WWI. A number of people who have catless RA's (either via the header/dp or just the dp) have reported that their sound got a lot better by replacing the stock resonator with a better unit. Lemme see if I can find the video of my car with no cat and just the magnaflow exhaust. Should give the orig. poster an idea of what to expect if he/she gets the header.
Edit: Here's the video, shot by E2L. http://home.comcast.net/~rmbrowning/otter_run.wmv
It's louder than the video lets on, but you can clearly hear the annoying high pitch of it. When I go catless again with the new resonator I'll try to get some sound clips.
Edit: Here's the video, shot by E2L. http://home.comcast.net/~rmbrowning/otter_run.wmv
It's louder than the video lets on, but you can clearly hear the annoying high pitch of it. When I go catless again with the new resonator I'll try to get some sound clips.







