anthonylan

So I am planning on buying a toda header, berk 70mm test pipe, and greddy se dual exhaust.

The toda header has 45mm primaries, 50mm secondaries, tapering to a 50-60mm collector

The Berk test pipe is 70mm

The Greddy SE exhaust goes from 70mm to dual 60mm piping

My concern is bottlenecking effects. Is this a good choice bolt ons? I thought it's best to choose setups where it can be one diameter size throughout.
Any clarifications are greatly appreciated!

Memo6453

what year is your car? if you are 06+ id get a 60mm test pipe and a Flashpro and get a tune. This will net the most gains and be the most cost effective. Not many intakes and/or exhaust will give you that much of a power increase to justify the prices for quality brands.

if you have a 00'-05' then not sure which EMS to go with with your budget. But i do know you should attempt to maintain the diameter of the piping the same or as close to the same as possible.

anthonylan

I have a 2000.. but to be honest. I really want to get an 06+
I don't know if I should wait until then rather than blow money now

Thanks for the reply!

marketappeal

Here's (almost) everything you need to know: https://www.s2ki.com/s2000/topic/842...-tps-and-hfcs/