Hello Brian,
Thanks for the header and midpipe, i'm digging the car. My question is whether or not the stock muffler is really backing up my header/midpipe? Do you think the dyno #ers you showed for your header/mid will be lowered with the stock muffler?
Thanks, Rick
GWR header and midpipe, still stock muffler
Re: GWR header and midpipe, still stock muffler
Yes, the stock muffler is not designed for the flow you are getting from our 2.5 inch header and 2.5 inch midpipe. You will still get some benefit of the header but significant peak HP is being left on the table because that stock muffler is restrictive by comparison with the rest of the system. Take a look at the RoadsterSport Q....it was designed to handle the flow....while keeping the sound down.
Brian Goodwin
Good-Win Racing
www.good-win-racing.com
Good-Win Racing
www.good-win-racing.com
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Re: GWR header and midpipe, still stock muffler
Hi Brian,
I have a similar question about my current racing beat muffler which is 2.375 inches.
I plan on using the GWR headers and midpipe while keeping the racing beat muffler.
Do you think this will have a negative impact on potential hp gains?
Thanks,
Nathan
I have a similar question about my current racing beat muffler which is 2.375 inches.
I plan on using the GWR headers and midpipe while keeping the racing beat muffler.
Do you think this will have a negative impact on potential hp gains?
Thanks,
Nathan
Re: GWR header and midpipe, still stock muffler
The 2.5 would be ideal....but very slightly smaller won't make much difference....perhaps a few hp at the very top of the rpms.
Brian Goodwin
Good-Win Racing
www.good-win-racing.com
Good-Win Racing
www.good-win-racing.com