TRD JDM Exhaust - Toyota Nation Forum : Toyota Car and Truck Forums

THE_PRO · 03-01-2003, 04:46 PM

I was told the TRD usa have better gains and sounds louder. But I was also told by many others that TRD JDM exhaust also have more gains, deeper sound(plus it's a one piece with special heat coating and what's used on TRD sports M).

Which one would you guys go for? Also any actual proof of diff between TRD USA and TRD JDM exhaust in power gain and sound?

***REN69*** · 03-01-2003, 06:05 PM

IMO.. TRD USA blows.. they aint got SH!T for our cars.. they only focus on newer models.

On the other side, TRD Japan is got everything, BUT importing will cost you $$$.

Lafora · 03-01-2003, 11:12 PM

your headers should be an EXTENSION of ur exhaust port.

it doen'stmatter if it's made by TRD, or Williams, the KEY is fitment.

it MUST be a perfect fit. ie no steps between the port to the manifold.

as far as equal length vs unequal length, there are pros and cons to both, i gotta look it up again.

first step to a good header is the perfect fit. worry about diameter, length, mandrel bends later.

Deep · 03-01-2003, 11:47 PM

The Pro drives a 7th gen Celi GTS for those that don't know. The best gains that I've seen have been with a Kazuma TRD exhaust, but its loud.

Lafora · 03-01-2003, 11:56 PM

for the most gains, run a straight pipe w/ the same diameter as ur secondaries

that'll get u the most gains.

THE_PRO · 03-02-2003, 02:17 AM

What i don't understand is they install these exhaust in japan on their celicas. They don't have problems melting the rear valance, then how come if we purchase the jdm exhaust it'll melt our rear valance? That just don't make any sense.