I'm still debating on what downpipe to purchase, one with or without flex section, with built in 02 housing eliminator or to just get the downpipe now and purchase a separate 02 housing eliminator later on, any suggestions or advice would be greatly appretiated.... to ad to the opinions given here, I am currently running stock downpipe with UR cat delete and RMR catback, love the sound, could do without the exaust stain on bumper but that's what you have to live with when running catless and have the RMR, just love the angled look to want anything else, has anyone found a gaurd piece of any sorts for the exhaust exit on the back bumper?

 

hi .. im new here .. im looking to purchase the JIC full titanium exhaust and running the JIC downpipe .. anyone running this setup and if so how is the quality .. thanks

 

Yah, I know, it hasn't come out in the market yet.... But I was referring to the exhaust as full titanium and NOT the downpipe.

 

Had it installed last saturday. It's really light, I think onlyabout 6kg. for the whole kit. Anyway, power has increased in higher rpm. The pulling power of the car at lower rpm seemed less but when it reaches full boost, it stays til redline. Think of it like, what it lost in the lower rpm, it gained in the higher rpm. Peak power before can be felt from 3,000rpm til 6,000rpm. With the exhaust, peak power can be felt from 3,500rpm til 7,000 rpm. I guess this is common for all exhaust if you increase the pipe diameter. But overall, this is one good upgrade. Basic upgrade wherein you can really feel the difference.

My boost (stock) also increased. Before, in 1st to 3rd gear, it will spike to 1.3bar and will settle to 1.2bar and in 4th to 5th gear, it stays steady in 1.3bar. Now, it increased by 0.1bar. So it reaches 1.4bar (20.58 psi) now.

 

The downpipe for all evo 7 and 8 came with out the flex section. They are sort of built-in with the flange connection.

Take out the cat, it will improve your torque.

 

anyone know if the HKS carbon ti or the apexi N1 mufflers can fit with the buschur piping setup?

 

anyone know which catback is better the HKS hi-power or the apexi N1, and which one is louder? thanks

 

A'pexi N1 is louder, but this also depends on what other mods you have put in, like a downpipe or a de-cat pipe. Performance-wise, I think they are just the same. The owner of A'pexi and HKS (Hasegawa-san) are brothers. So I'm sure they are using the same technology in making their products.

Buy which one's cheaper.

 

thanks for the reply, i heard the rmr exhaust and it sounds really deep and loud, anyone have any suggestions which exhaust is good, have a good performance gain and sound deep? thanks

 

Get a titanium one. It's loud and deep. Plus, it will increase your top-end power, plus your boost, not to mention that they are lightweight. If you have the full piping set up (downpipe, remove cat with a 3" straight pipe, 3" minimum exhaust kit), expect an increase in boost.

Now, my peak boost is 1.5bar, around 22psi (stock).

 

So... plain and simple, on a stock car which exhaust system will give you the most whp? It seems like it is the AVO, cause it is said to put 20whp with just the cat back while hte B&B puts 24whp but with a down pipe. I really want to get exhaust but i want to get the one that puts down the most whp. The 4 that i am looking at is Burscher, B&B, RnR, and AVO. Not counting sound, just going on price and performance, which should i go for?

 

I recommend the B&B. I have the full Turbo back system with cat delete. With just that and a HKS RS intake I put down 290 to the wheels with 20.5psi boost. When I put it on I could immediately tell a HUGE difference. Not the cheapest, but not too expensive either. No problems except the CEL. I think I am going to get the Ultimate-racing test pipe. It is gauranteed not to throw a CEL. Either way, B&B is the way to go IMO. If noy B&B my second choice would be the JIC Spartan.

 

What do you have besides the intake and turbo back? Buy the way what psi can our engine take stock with NO problems, and minimal tunning, is 1.5 bar realistic?

 

I also have HKS Type-1 TT, HKS EVC V and GReddy e-manage. Tuned by Boost-Solutions. I have my daily driver boost set at 16psi, and high boost set at 21psi. Stock internals should be able to handle about 24-25psi but you dramatically decrease the longevity of your engine and turbo running boost that high. I would stay around 20.5-21.5psi to be safe.

 

I have a question for Bushcur Cat-back owners. I am planning on buying the cat-back from Buschur (will upgrade later to their turbo back with high flow cat). If I want to run their cat-back with my factory cat in place, how will this be possible as the Buschur cat-back has no flanges and the factory pipe does? Their crimp connectors only seem to work with their piping. Is this correct? Any help would be appreciated.

Gumpy