Hey everybody, I am new to the forum and new to my Boxster S (had a '99 previously and loved it). I have been reading feverishly through posts about upgrading intake and exhaust to get more power out of my 3.2. This is primarily a street car, but will be used at the track 3-4 times a year. I also have several other mods going on (RSS pulley, deep sump, IMS, safety bits, etc.), but am really just focused on intake/exhaust at the moment.
The list of parts I am starting with is here, and I have a few questions:
- OEM 996
76mm Throttle Body
only, and
USE a 997 Distribution T to your stock Plenums
- OEM 987 Air Box, MAF, and Filter
You will need to push a tune from a 996 of the same year as your car using the 987 MAF housing.
- Aftermarket Headers, Test Pipes, and Muffler/Exhaust
Questions:
1) I have read some posts where users said they needed to use a 987 Cayman engine cover in order to get clearance. Other users said you can simply cut the "muffler" off of the 987 air box in order to make it fit in a 986. My question is, with the intake set-up above, what will I need to do to make it fit?
No need for the engine cover as long as you stay with your stock plenums.
2) I have seen posts with positive reviews of exhaust parts from both TopSpeed and Manzo (M2). Both are inexpensive (and therefore appealing) options next to the big names at Fabspeed, etc. I have noticed that the header+testpipe+muffler combo from TopSpeed is now nearly double the price ($1200 vs. $600) of the same set-up from Manzo (both are on ebay). Is anybody familiar enough with both set-ups to talk about the difference? What am I getting for the extra $$$ at TopSpeed?
Get Circuit Werks cat delete pipes they are the best. Currently out of stock is why the price is so high. They are normally $189.99 
Circuit Werks Porsche Boxster 986 00 04 2 7 3 2 Test Pipe Cat Delete Testpipe TP | eBay My pick on the muffler would be Borla 
Borla Exhaust System for 00 04 Porsche Boxster s Boxster Roadster s 3 2L 140115 | eBay
3) Lastly, what do you recommend for tuning the ECU once this modification is done? I am used to playing with much older cars, and am completely unfamiliar with this process. I have seen several places that ask you to list out your mods and send your ECU in by mail, others that offer a tuned product you can buy, etc. Any recommendations? I am located in Indianapolis, IN, btw, in case there is someone you know of locally.
You will need to push a tune from a 996 of the same year as your car using the 987 MAF housing.
THANK YOU!!!
My car
Threaded Mode
