SATRIA 1.6 - Seeking advices for TUNING & UPGRADES

RENESIS VIII

7,000 RPM
Senior Member
Jun 13, 2012
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Ipoh
Hi bro.

Whats the differences between 4 - 3 - 2 - 1 vs 4 -2 - 1 extractors
My uncle ask me to use 4 - 3 -2 - 1.
Normally for inline-4 engines, there is only 4-1 or 4-2-1.

To explain it, 4-1 means that 4 pipes coming out from exhaust manifold, merged into one single pipe after a certain length. That is why it is called 4-1. 4 pipes into 1 pipe.

4-2-1 means that 4 pipes coming out from the exhaust manifold, 1 pipe will merge with 1 more pipe. So, from 4 pipes it will merge to 2 pipes. At the end, the 2 pipes will merge together as 1 pipe. Hence the name 4-2-1. From 4 to 2 and finally to 1 pipe.
 

vr2turbo

((( God Level 30,000 RPM )))
Helmet Clan
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May 11, 2010
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Petaling Jaya
Merge one by one? Never heard of 4-3-2-1 though. :stupid:
4 then join 2 to 1 first, the other 2 don't join so got 3, then further down only join the 2, then got 2 then join again to 1 .......lol

Bro. Issuzark go try new system......hhahahahhaha:rofl:
 

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very simple only..seal your woofer box completely....
make sure there is no air coming out from the box when your woofer kicks hard....

there are 2 way you seal a woofer box
1)use silicon sealant or glue gun to seal ever corners of your box

2)use double sided tape and stick it on the back subwoofer speaker round frame(refer to the picture), stick into a compklete round shape..and then screw it back tighly into your box...this way you can minimize/seal the small gap in between you box and...
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