the pipe thread.talk mufflers and headers for .21 and .28 motors
 

K guys i thought we needed this thread so we could post what pipe and header combo does what...

to start this off id like to hear thoughts on the following pipes for a vspec...
Ive tried a jp3 and im wanting something that will rip a little harder on bottom but hold about the same mid and top...

wanting to try.
AE pipe and header
sirio or werks 2013
rb 2045
2041

Ive found a Hyper 8 Pro exhaust and Manifold runs realy good on my V-Spec.
Pretty good run time and pulls hard right thru to the top.
Heres a video of it in action, bear in mind it was 38 degrees and i was running it very fat to be on the safe side.

http://www.zone3adelaide.com/rcmovie...actice2008.wmv

Is the hyper pipe that come with Hyper ST Pro is compatible with .21 engines?

I used to run the Vspec with a OS 2060 pipe on my buggy. Powerband is smooth throughout. I now run the Vspec with a Sirio 2057 pipe that has the extended header on my truggy. Seems to have more bottom end. It does feel that my truggy is pulling a little faster with this combo than on the buggy. :)

I am sure this is probably a very basic question, but I have never been able to find an answer to it. What does the number i.e. 2013, 2045 etc mean and how does it calculate to the performance of the pipe. Thank you for any help on this topic.

im thinkin it has something to do with the efra number but im not sure either and would lover to hear the answer.

The JP 4 works the best with a .28 in my opinion . My RB 928 runs the best with that pipe combination. The bottom and mid are through the roof, but it does not kill the top end.

I have a buddy who runs for AE and O.S. He was telling me that the AE pipe is great for the price. He gets both for free and was running the AE pipe. Getting 10 minutes of runtime with it and good power. I dont know much more than that. At the Nitro Challenge he went with the Speed so I am not sure if he stayed with the AE Pipe or with the O.S. 2060.

A personal opinion is the 2060 better be a "whole" lot better for the amount of money they want for it. But like I say I have no personal experience. I actually run the RB c6bb with 2045 pipe. and was thinking about going with the vspec because of the price of RB, and the above info is what he told me.