I am going for a turbo d series build on my 90 ef hatch. What exhaust do you guys suggest? Engine is going to be forged and turbod so in the future I am expecting big hp numbers, I would like something on the quite side especially on low revs then on high revs I wont mind the noise
Thanks in regards for any help

 

For high HP you really want a 3" open DP, or 3" full exhaust which would be custom made. Any restrictions, mufflers, etc. will kill performance when boosted. I run two Magnaflow resonators with a full 3" system and find it to be reasonable for normal driving.

The only other option is to have a cutout, then you can have your quiet exhaust system for normal driving and switch over to open DP when you want to get on it. Boost actuated cutouts are pretty neat.

 

Do you know anyone with a welder? Want to cherry pick your resonators and mufflers?

Welcome to TruBendz - Mandrel bends, Exhaust systems, Downpipes and Mufflers

They have 2.25 2.5, and 3 piping kits available in aluminized and stainless. Put the 2.25 on a junky NA DD. Decent quality metal, parts fit up rather well (test fit x5 or live with your regret), and the price is nice.