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high-performance rear side flaps
Non-resonated OR RESONATED cat-back system
causing the timing to alter enough that piston-to-valve contact can occur
Also in development ready for release early 2021 are turbo downpipes to compliment the GPF back system
AIRTEC INTERCOOLER UPGRADE FOR ASTRA MK4 SRI AND GSI Subaru WRX 5 Speed high-performance rear side flapsAIRTEC INTERCOOLER UPGRADE FOR ASTRA MK4 SRI AND GSI Finished in Pro Series Satin Black AIRTEC has released their Astra GSI SRI MK4 Intercooler with a great price, reasonably priced but high quality alternative from cheap nasty Ebay kits more than capable of doing the same if not better job than more expensive Intercooler kits, we take a huge amount of pride in making sure our kits are finished to an extremely high standard. Huge 60mm core. Race spec
US$ 1118.50
US$ 139.00
US$ 607.50
US$ 1809.50