MazdaRx7Racer4Life

I am planning on upgrading my cars exhaust, from stock to full out, downpipe, midpipe and catback. I dont care about emissions because IM in florida. I would like to know if I NEED to upgrade my ecu for my car to perform properly. If I do, whyat upgrades are needed. This is the first mod being done to my virgin FD and I wanna do it right. I was thinking of going with the Apexi DUNK catback and maybe the rest making it racingbeat. Do I need to upgrade with that? Thanks.

Little 7

Think about this.
Its JDM TRUST Race Full Exhaust. Its better than the Ti. Price almost the same but its a straight pipping design from MP to End. All 80mm piping and TRUST have 80mm DP in this TR series.

http://www.trust-Power.com/mazda/rx...r_powevoII.html
$625+shipping.

rotarynemesis

I have a full exhaust and an intake one mine with no ecu but from what every one is telling me its a big shock to them that my engine hasnt blown yet.

I did no research before doing this and so when they told me this its gotten me scared. So the next thing on my list is a PFC.

If I were you I would go ahead and get the ECU. Dont take any chances.

MazdaRx7Racer4Life

Thanks, I think Il upgrade, whee can I get the ecu upgrades and around how much are they? Little 7, I can't see the link you gave me. Do you have any more pictures, or the website. Let me knwo.

BoOsTin FD

If you install midpipe, you better get Ecu, or you'll blow that new engine of yours